Computer Science Essays | Free Essays on Computer Science

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Operating System Used In Portable Devices Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,412 Words)

This report is about Operating system used in portable devices like PDA and laptops etc. As the passage of time consumer needs are becoming more and more demanding and life is becoming compact so as devices are also becoming more powerful and their OS also more advanced and complicated we will discuss some those most commonly used OS and their different uses and the devices they are ...

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Development Of Clinic Management System Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,098 Words)

Nowadays most of the clinic in Malaysia is using semi-systematic software to handle their daily activities. Doctor still need to write the symptom and prescription manually using paper and pen hence pass it to nurse for further process like recording, preparing and payment. This project known as ClinicOn is to develop a Clinic Management System exclusively designed to help all kind of clinic including traditional Chinese medicine ...

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Analytical And Empirical Methods For Usability Evaluation Computer Science Essay

Published Date: 23 Mar 2015

12 Pages (4,417 Words)

Usability Evaluation is evaluation on the quality of the usability of the interface design. Two common methods used for this evaluation process are Heuristic Evaluation (analytical method) and User Testing (empirical method). Both of these methods have their own strengths and limitations, depending on the objectives and the context of the usability evaluation. TASK 1: Methods Description The Heuristics Evaluation Heuristic evaluation is a usability inspection technique ...

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Anti Virus Uses And Benefits Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,141 Words)

This report presents antivirus protection, its definition and different types of. It shows how it is important of this program to protect computer. Because attacker spread viruses around the world, people need strong and effective antivirus program to prevent their computers from these viruses. In this report, will be mentioned the idea of antivirus protection types, how its work and which methods use and benefits of this ...

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Ipad Is The Best Tablet Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,942 Words)

IPad a computer that is a type of a tablet, and it was developed by the Apple Company. Apple designed and marketed the IPad especially for the media which include books, periodicals, movies, music, and games. Another purpose of the Apple to design the IPad is to provide general web and email access. The size and weight of the IPad that are about 700 grams is contemporary ...

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Graphical User Interface For The 3 Axis Cnc Milling Machine Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,679 Words)

This paper details the design and development of a Graphical User Interface for the 3-Axis CNC Milling Machine, which was designed in-house for testing and research purposes at the University of the South Pacific. The 3-axis CNC Milling Machine used COM Port terminal software, TeraTerm to communicate with the electronics hardware via RS232 link. The GUI was developed using Microsoft® Visual Basic 2008 Integrated Development Environment. The ...

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Distributed Denial Of Service DDOS Attack Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,389 Words)

Information technology is an exciting and emerging day by day technology which requires communication systems for data and services exchange. As nowadays every services and products uses computer and internet as a medium to interchange data or money in an open internet, hence prone to vulnerabilities. Distributed Denial of Service (DDoS) attack is an attack to the availability of the resources available, so that authenticated users do ...

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Computer Science Essays - Internet Security

Published Date: 23 Mar 2015

28 Pages (10,938 Words)

Internet Security. Abstract Online users today are faced with multitude of problems and issues. A typical online user is vulnerable to virus, worms, bugs, Trojan horses etc.; he/she is also exposed to sniffers, spoofing their private sessions; and they are also vulnerable to phishing of financial information. Not only this but users are also constantly subjected to invasion of privacy with the multitude of spy ware available ...

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Support For Built In Utility Programs Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,139 Words)

Report that explains the purpose of operating systems by outlining the basic functions in general, saying how they are used to facilitate users. An Operating system is software that lets the user interface with the computer and also manages number of applications. Most number of PC's has built in Operating system installed. Operating systems created to take control of the operations of applications such as email programs, ...

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Advantages And Disadvantages Of Encryption Security Types Computer Science Essay

Published Date: 23 Mar 2015

13 Pages (5,003 Words)

An Egyption scribe used non-standard hieroglyphs in an inscription about 1900 BC. Example of written cryptography is the first documented that lists by Kahn. A piece of flat stone carved into a collage of images and some writing to identify themselves in trading dealings in 1500 BC antique Assyrian merchants used in intaglio. The 'digital signature' produced by this mechanism. This 'signature' belongs to the trader, but ...

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Static And Dynamic Cmos Cascode Voltage Switch Logic Circuits Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,778 Words)

This paper presents a dual rail logic network based static and dynamic CMOS cascode voltage switch logic (CVSL) circuits for improving the functional efficiency and low power consumption. The logic design strategic is achieved in CVSL by cascading differential pairs of FET devices are capable of processing Boolean functions up to (2N-1) input variables within a single circuit delay. Potentially CVSL is twice as dense as primitive ...

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Transportation Problem In Supply Chain Management Computer Science Essay

Published Date: 23 Mar 2015

10 Pages (3,861 Words)

Transportation plays a very important role in Supply chain Management and my analysis is on the problem that why this department is suffering from transportation crises what are the barriers that are coming in the middle of these problems, I have noticed that the communication network is not properly establish in supply chain so the flow of information was not delivered. The other was the technology problem, ...

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Human Computer Interaction Design For Mobile Device Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,716 Words)

The designs that come in HCI targets in producing interactive products that are that provider pleasant experience to use. Because of the multi dimensional method of HCI and varying systems of interface it is very difficult for developers which are easy to use as well as cheap. In this modern era there is an increase in the number of people who complain about HCI. These complain causes ...

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Advantages And Disadvantages Of Firewalls Computer Science Essay

Published Date: 23 Mar 2015

9 Pages (3,538 Words)

A firewall is a boundary or a wall to keep intruders from attacking the network. The firewall is network device that is in between a private network and the internet. The firewall is configured to inspect network traffic that passes between the network and the internet. We can assign rules or protocols to the firewall to allow data to be shared. If the protocol isn't included in ...

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The History Of Microsoft Powerpoint And Word Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,563 Words)

Microsoft Powerpoint usually just called PowerPoint, is a closed source commercial presentation program developed by Microsoft. It is part of the Microsoft Office suite and runs on Microsoft Windows and Apple's Mac OS X system. The current versions are Powerpoint 2010 for Windows and 2011 for Mac. The original version of this program was created by Dennis Austin and Thomas Rudkin ofÂ Forethought, Inc. Originally designed for the ...

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Video summarization techniques

Published Date: 23 Mar 2015

18 Pages (7,049 Words)

1. INTRODUCTION Recently, the number of videos has been increased and the ability of individuals to capture or/and create digital video has been grown at the same time. So there is a growing need for video summarization. Video summarization refers to a summary creation of a video where is has to address three main beliefs. First, the video summary should contain the most important scenes and events ...

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Activation Cracks And Workarounds Windows Vista Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,167 Words)

Windows Vista enthusiasts and lovers already can download final RTM version gold release of Windows Vista from the Internet, way before the scheduled and target release date of Windows Vista to retail customer on early 2007. However, unless you have a hand on corporate volume license key (VLK), as Windows Vista is not yet officially goes on sale, so you won't possible to purchase a license to ...

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Temperature Dependent Speed Controller Using Thermistor Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,591 Words)

This project is a standalone automatic fan speed controller that controls the speed of an electric fan according to our requirement. This closed loop feedback control system is efficient and reliable by using embedded technology . Micro controller (AT89C51) allows dynamic and faster control. Liquid crystal display (LCD) makes the system user-friendly. The sensed temperature and fan speed level values are simultaneously displayed on the LCD panel. ...

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Qualitative And Quantitative Research Methods Computer Science Essay

Published Date: 23 Mar 2015

11 Pages (4,114 Words)

Qualitative research is involves using various methods ranging from participant observation, interviews, and action research, to ethnography, document review and grounded theory in order to investigate and explain phenomena of predominantly human sciences. However, qualitative research can also be found in various other disciplines, subject to suitable methodologies. A general shift in orientation of Information Systems (IS) has resulted in an elevated focus on organizational and managerial ...

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Microsoft Versus Apple Compare And Contrast Computer Science Essay

Published Date: 23 Mar 2015

19 Pages (7,299 Words)

Business strategy is a direction, vision and objectives in terms of projects, in order to configure the total recourses that invest into the projects base on the markets needs and challenging of other competitors. After all, a scorecard will be use to evaluate the overall performance and the next step can be draw out base on the evaluation. The evaluation is about the suitability, feasibility and finally ...

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A Brief Introduction To Design For Testability Dft Computer Science Essay

Published Date: 23 Mar 2015

19 Pages (7,272 Words)

DFT is a technique that adds certain testability features to the design which makes an IC more testable. DFT technique improves the controllability and observability of internal nodes, so that embedded functions can be tested easily. Two basic properties determine the testability of a node: 1) controllability, which is a measure of the difficulty of setting internal circuit nodes to 0 or 1 by assigning values to ...

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Flash Animation Software Package Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,316 Words)

In this part of my assignment I would like to evaluate one software package. I would like to present basic information about Adobe Flash CS3 Professional. Also, I want to show you advantages and disadvantages of this program and describe where software could be improved. Adobe FlashÂ (Macromedia Flash) is a softwareÂ used to addÂ animations, video andÂ interactivityÂ to web pages. Flash is often used for games and advertisements. Flash was ...

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An Introduction To Cryptology Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,585 Words)

Cryptography was used only for military and diplomatic communication until the development of public key cryptography. Secrecy is one of most important requirement for any communication and it becomes more important when the content of communication is for military and diplomatic purpose. Hieroglyphs used by Egyptians are earliest known example of cryptography in 1900 BC. These hieroglyphics were used to write the stories of the life of ...

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Characteristics of a good database design

Published Date: 23 Mar 2015

4 Pages (1,380 Words)

1. Introduction The purpose of this report is to mainly discuss about characteristics of a good database design and a quality design. Main reasons behind writing this report is as part of implementation of Stanwell parish plan the need for a database application was identified by several committees. Our committee is responsible for the design a database for record the runners participated on the annual Fell race. ...

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Development Of A Web Based Payroll System Computer Science Essay

Published Date: 23 Mar 2015

13 Pages (4,937 Words)

Saving time considered to be a leading topic in this modern world where people try to get their work done in a least amount of time. Therefore time spent on simple things in day to day life made easier as web-online has conquered that place. With that intension this payroll system has been developed to organizations where small branches involved. Developing such web based payroll system may ...

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The Process Of Time Table Construction Computer Science Essay

Published Date: 23 Mar 2015

12 Pages (4,574 Words)

The process of time-table construction can prove to be a hectic task considering the number of cohorts [courses] and the modules [subjects] offered by a specific university. This is mainly because, there could be a deadlock in allotment of the schedule considering all the constraints to be satisfied .This requires logical thinking which definitely consumes a large amount of time. Moreover, identification of the inconsistencies and their ...

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The Web Browser Comparison Computer Science Essay

Published Date: 23 Mar 2015

10 Pages (3,655 Words)

In this assignment, I am going to discuss about the comparison between web browsers. First, what is a web browser exactly. Actually it is a software application for retrieving, presenting and traversing information resources on the World Wide Web. Not only that, it can be also defined as an application software or program designed to enable users to access, retrieve and view documents and other resources on ...

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The Zone Based Firewalls Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,245 Words)

The purpose of this paper is to provide an overview of Zone-Based firewalls. In particular we are going to briefly present the firewall evolution from their beginning until today and under of which conditions we arrived on zone-based firewalls. Furthermore we analyze the differences between zone-based firewall and some other firewall policies. Finally we both describe the several advantages of zone-based policy and the critical factors in ...

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Computer Is Derived From The Latin Term Computer Science Essay

Published Date: 23 Mar 2015

12 Pages (4,656 Words)

The word Computer is derived from the Latin term computare which means to calculate. THAKUR computer is an electronic device that is designed to work with information. A computer is electronic device that does not do any work by itself but works under the instruction given by user. A computer is the combination of Hardware and Software. A computer is an electronic device that manipulates information or ...

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The Graphical User Interface Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,490 Words)

A Graphical User Interface is a system of graphical elements that allow the end user to interact with the underlying software of the GUI using simple mouse operations. MATLAB has in-built support for GUI development and programming. Since we were already using it for our vision processing, we decided to design our GUI also using MATLAB. It offers two ways to design a GUI. One is through ...

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Black Box And White Box Comparison Computer Science Essay

Published Date: 23 Mar 2015

9 Pages (3,456 Words)

Testing is an important activity for checking the correctness of system implementations. We need to find out bugs in the system on unit level as well as on the integration or system level of testing. At unit level, we use white box testing approach to find bugs in the developed code whereas at integration or system level we use black box testing approach to validate the system ...

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Literature review about data warehouse

Published Date: 23 Mar 2015

20 Pages (7,687 Words)

CHAPTER 2 LITERATURE REVIEW 2.1 INTRODUCTION Chapter 2 provides literature review about data warehouse, OLAP MDDB and data mining concept. We reviewed concept, characteristics, design and implementation approach of each above mentioned technology to identify a suitable data warehouse framework. This framework will support integration of OLAP MDDB and data mining model. Section 2.2 discussed about the fundamental of data warehouse which includes data warehouse models and ...

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Sql Injection Attacks Pose Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,861 Words)

In recent years, SQL injection attacks pose a common and serious security threat to web applications: they allow attackers to obtain unrestricted access to the database underlying the applications and to the potentially sensitive information these database contain, and it is becoming significantly more popular amongst hackers. According to recent data, between Q1 2012 and Q2 2012, there has been an estimated 69 percent increase of this ...

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Modulation Systems Used In Satellite Communications Ii Computer Science Essay

Published Date: 23 Mar 2015

9 Pages (3,325 Words)

Satellite is the one of the greatest means of communication carrying a large chuck of voice and data stream from one part of the horizon to the other as compared to other medium. In this modern age, communication satellite networks are an indispensable part of the major telecommunication systems. Satellite interconnects the nodes and provides some better advantages in application than the traditional communication systems such as ...

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Multimedia Systems And Applications Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,455 Words)

This report gives the details of multimedia computing. Multimedia computing is one of the major research topics in recent years, this field is widely using in different industries like web, gaming, telecommunications and broadcasting networks. Multimedia computing gives the detailed view of multimedia systems, multimedia applications, and multimedia softwares. It is used in presenting the text, audio, video, and graphics in different fields. The development in multimedia ...

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Study On Primary And Secondary Storage Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,340 Words)

Primary storage is also known as Immediate Access Storage and is where data is stored on the main computer memory. An example of primary storage is RAM (Random Access Memory - otherwise referred to as RWM (Read Write Memory). RAM is the memory chip stored within the computers motherboard, where data can be read, stored and edited. RAM is extremely fast and is where programs are usually ...

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Technology Used In Mobile Wallet Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,105 Words)

Mobile wallet system is an innovative and revolutionary breakthrough mobile commerce solution that offers the conveniences of cash-less shopping, as well as making remote payments via any mobile phone, where financial and merchandising transactions are done at the touch of the fingertips. Technology used in mobile wallet is known as Near Field Communication (NFC). Near Field Communication is a short range high frequency which enables the exchange ...

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The Computer Data Storage Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,351 Words)

Computer data storage provides one of the core functions of the modern computer, that of information retention. It is one of the fundamental components of all modern computers, and coupled with a central processing unit (CPU, a processor), implements the basic computer model used since the 1940s'[2].Physical memory is a general term that refers to the media data cache on your computer. Being processed for each program ...

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Stuxnet Network Worm Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,463 Words)

Stuxnet, a network worm that, during the early part of 2010, began to infect Industrial Control Systems (ICS) and programmable logic controllers (PLCs) becoming the first rootkit for PLCs. PLCs are usually not connected to the Internet, or the internal network, so the creators had to devise a method to get the worm onto these systems. The worm would use 4 zero-day vulnerabilities to propagate through internal ...

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Advantages Of Scripting Language Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,579 Words)

A scripting language is a form of programming language that is used to create scripts or bits of code. Scripting languages are often written to facilitate enhanced features of websites, these features are processed on the server but the script of a specific page runs on the user's browser. The origin of the term was similar to its meaning in "a movie script tells actors what to ...

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Critical Evaluation On ASP Net Computer Science Essay

Published Date: 23 Mar 2015

15 Pages (5,920 Words)

ASP.net is a new technology and powerful web development language to build a web application much faster. Lately, we can always hear the news of ASP.net especially on the web developer sites. ASP.net is not only is the transformation from ASP, ASP.net can be said that is new era in the web development field. In this seminar, I will explain what is all about for ASP.net. First ...

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User Interfaces Ic Compiler Computer Science Essay

Published Date: 23 Mar 2015

15 Pages (5,735 Words)

IC Compiler is the software package from Synopsys for Physical Design of ASIC. It provides necessary tools to complete the back end design of the very deep submicron designs. The inputs to the IC Compiler are: a gate-level netlist which can be from DC Compiler or third-party tools, a detailed floorplan which can be from previous Design Planning through IC Compiler or other third-party tools, timing constraints ...

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The Perimeter Network Security System Computer Science Essay

Published Date: 23 Mar 2015

11 Pages (4,139 Words)

As like in the real life, securing the borders are the first level of defense to protect the internal network of an organisation. The purpose of this report is to design a perimeter network security system that will provide security enhancement on the existing network infrastructure of Napier University. Network perimeter is an important line of defence in an enterprise network and every organisation has this perimeter ...

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Wireless Networks Security Privacy And Ethical Issues Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,382 Words)

Wireless area networks (WLANS) have been increased drastically increased in every area such as educational institutions, homes public areas and businesses wireless based on the standard 802.11 are mostly used in the corporate and environment such as 802.11b operates at 2.4GHZ and gives up to 11mbps and 802.11a provides up to 54MBPS. In this paper I am going to discus about the wireless network security and privacy ...

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PatientOS installation guide

Published Date: 23 Mar 2015

4 Pages (1,457 Words)

1. Overview 1.1 Process The basic steps to installing PatientOS are divided into the backend system and front end client a) Backend System Install the PatientOS software base version. Install the PatientOS updater software. Install and create a PostgreSQL database version 8.2 or higher. Import the PatientOS database contents. Start the PatientOS application server. b) Frontend Client Install the PatientOS software. ...

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Purpose Of School Management System Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,209 Words)

Computer technology is used to provide facilities to user to perform their jobs quickly and accurately. That is why computer is used in most organizations to maximize the efficiency and performance of the organization. The objectives of the latest technology are to speed up the system, to reduce the errors and to develop error free inputs, as invalid inputs are the main cause of computer mistakes and ...

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6lowpan Neighbor Discovery Protocol Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (2,966 Words)

The IPv6 over IEEE 802.15.4 has specified way how to carry IPv6 packets over IEEE 802.15.4 standardized devices and similar networks with the introduction of an adaptation header which comes before the IP header and just after MAC layer, a link in such a 6LoWPAN is characterized as lossy, with minimum power consumption, minimum data rate, small range, with many nodes saving energy with hibernating or deep ...

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Plant Diseases Through Image Processing Techniques Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,591 Words)

Damage of plant is an important issue in agriculture. There are lots of factors involving weather, fungi, artificial drying, and mechanical damage during harvest and storage which can cause damage. NIR spectroscopy for classifying sound and damaged soybean seeds is very useful. NIR spectrometer is used to collect the spectra of single seed then PLS and neural network are used for classification of sound and damaged seeds. ...

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Real Time Operating Systems Computer Science Essay

Published Date: 23 Mar 2015

11 Pages (4,111 Words)

Real Time Operating Systems are Operating Systems for systems operating in Real Time. These Operating Systems have functions dedicated to detecting and responding to tasks from the real world within their deadlines. Depending on whether the real time system is hard or soft, the RTOS is designed to the needs of each system. RTOS differs from General purpose Operating System in function and design and will be ...

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Exploring Networking Principles Components Computer Science Essay

Published Date: 23 Mar 2015

12 Pages (4,408 Words)

It is a communications model that consumes the similar capabilities and can start a communication session.Â This network definitely has no central server. Every computer makes its own functions and may share certain resources with 75 additional users on the network. The whole thing in the network are equal to 'peers' which means they don't need a server role to play. Peer to peer network is easily to ...

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A Management System For Shopping Malls Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (3,022 Words)

1.1 Introduction: Therough this system to design system to orgnize the work of Shoppiing Mall contain many shops belong to the same company of this mall. Through this system we can manage the work of all shops in this mall and monitor all activities in all shops. In this system we have tow sections, the first is "Management", and the second is "Shops",Each section hase different features. ...

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Functions Of The Operating System Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,050 Words)

Introduction A personal computer consists of two components, the hardware and the software. Hardware are basically physical components of the computer, in other words, they are tangible such as the motherboard, graphic card, hard drive, sound card, keyboard Ã¢â‚¬Â¦ etc. Software on the other hand are series of programs, algorithms, procedures, and data that provide instructions and tell computers what tasks to perform and how to perform ...

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Roles Of The Operating System Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,186 Words)

All computers need some form of operating system so that communication between users applications and hardware. The OS also looks after the file system. With advancement in technology OS can now support more than one User, Task or Central Processing Unit (CPU). The OS controls the communication between applications and hardware. For the OS to communicate with these it installs device drivers for any hardware component that ...

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Software crisis

Published Date: 23 Mar 2015

7 Pages (2,410 Words)

INTRODUCTION: Since last 20-25 years, there has been a rapid increase in the development of programs using a computer. Also, the difficulty level of software has increased to a greater extent. In other words, a drastic change has occurred in the development of computer programs. In order to make the programs more and more predictable, different types of patterns have been created. But the software industry is ...

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About the bridge and router

Published Date: 23 Mar 2015

12 Pages (4,412 Words)

Introduction In this current assignment I will discuss about the bridge and router. This assignment I will explain the definition of what is a bridge and a router in detail. The bridge and router has its own advantages and disadvantages in many ways by looking thru its capability and specification wise. Bridge is a wired connection which is only use for that computer which is connected to ...

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Airlines Customer Relationship Management Crm Systems Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,823 Words)

During the early 1920s, several small scale airline companies had come up in different parts of Europe but only two of them made it to the top. They were-The Deutscher Aero Llyod and Junkers Luftverkehr. On January 6, 1926, they merged and founded "Deutsche Lufthansa AG". Since then Lufthansa has been continuously transforming itself into a competitive corporation with maximum customer satisfaction and modern organizational structure. Deutsche ...

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Advantages And Limitations Of Different Operating Systems Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,208 Words)

1.The majority of Linux variants are available for free or at a much lower price than Microsoft Windows. 2.Linux is and has always been a very secure Operating System. Although it still can be attacked when compared to Windows, it much more secure. 3. The majority of Linux variants and versions are notoriously reliable and can often run for months and years without needing to be rebooted. ...

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Overview Of Data Structures And Algorithms Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,357 Words)

As Robert Lafore has stated, data structures are a collection of structures that are used to store data in a memory location. A Data structure is designed to organize data to fulfill ones purpose of accessing and using them. Arrays, linked lists, stacks, binary trees, and hash tables etc...These are included as data structures. But there are data structures that can be thought of as Abstract data ...

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A Literature Review Regarding Virus Protection

Published Date: 23 Mar 2015

12 Pages (4,404 Words)

Although most of the people think that there is nothing to do a research in the area of computer virus protection, there are more and more things to research as everyday more than 200 computer malware are created by the virus creators. In the modern world most of the people are using computers in their day-to-day activities. So it is more important to have knowledge of computer ...

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Implementation Of Clustering Algorithm K Mean K Medoid Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (3,011 Words)

Data Mining is a fairly recent and contemporary topic in computing. However, Data Mining applies many older computational techniques from statistics, machine learning and pattern recognition. This paper explores two most popular clustering techniques are the k-means& k-medoids clustering algorithm. However, k-means algorithm is cluster or to group your objects based on attributes into K number of group andÂ k-medoidsÂ is aÂ related to theÂ K-meansÂ algorithm. These algorithms are based on ...

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The Elements Of Hacktivist Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,928 Words)

Hacktivism a portmanteau of hack and activism is the nonviolent use of illegal or legally ambiguous digital tools in pursuit of political ends. These tools include web site defacements, redirects, denial-of-service attacks, information theft, web site parodies, virtual sit-ins, virtual sabotage, and software development.[1] It is often understood as the writing of code to promote political ideology - promoting expressive politics, free speech, human rights, or information ...

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The Characteristics And Applications Of Manets Computer Science Essay

Published Date: 23 Mar 2015

15 Pages (5,973 Words)

Chapter 1 The advent of ubiquitous computing and the creation of new, powerful, efficient, portable computing devices have focused the importance of mobile and wireless networking. Mobile wireless communications and networking is an emerging technology that allows users to access information and services electronically at any time, regardless of their geographic positions. There are two types of wireless networks: infrastructure based wireless networks and infrastructure-less wireless networks ...

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Implications of cctv surveillance in society

Published Date: 23 Mar 2015

8 Pages (3,183 Words)

Implications of CCTV Surveillance in Society Introduction Surveillance as equated in the Oxford Dictionary; "Supervision, close observation, [and] invigilation of individuals who are not trusted to work or go about unwatched" (Fowler and Fowler 1964: 1302). Surveillance has become a part of society and seems to be everywhere. People are supervised by many different methods every day. Being a huge part of society, surveillance is continuously discussed ...

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E Commerce And The Importance Of Encryption Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,269 Words)

Web-commerce has grown into one of the fastest-growing area of industry in the past two years. Billions of dollars have passed hands in the process and each entrepreneur wants a slice of the dough. To make this possible, data encryption plays a very central role in ensuring customers that paying for anything online is secure. E-commerce relies on encryption to secure data transmission by controlling data access ...

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Emerging Technologies Of Century Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,274 Words)

This paper outlines the two emerging technologies and their impact on society and on business. Emerging technology, the name it self implies the technologies that are emerging or growing with time as result of researches in those technologies. Some of the emerging technologies are nanotechnology, cloud computing, biogenetics, robotics, artificial intelligence etc. Here we are discussing two prominent emerging technologies of 21 century, * nanotechnology and * ...

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Review And History Of CDMA Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,456 Words)

CDMA technology was used many times ago at the time of world war-II by the English soldiers to stop German attempts at jamming transmissions. English soldiers decided to transmit signals over several frequencies, instead of one, making it difficult for the Germans to pick up the complete signal. CDMA has been used in many military applications, such as anti-jamming (because of the spread signal, it is difficult ...

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Design And Develop Supermarket Sales System Services Computer Science Essay

Published Date: 23 Mar 2015

17 Pages (6,741 Words)

It contains details for the customers, suppliers and products. This system contains two types of users, administrator and the end user. The administrator has the authorization to create new users, edit an existing user and delete a user or disable a user. This system generates multi reports for costumer, supplier, product, and soling. This will cut down the amount you spend away from the primary focus of ...

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Building Management System Bms Server Software Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,162 Words)

As we known BMS are created to controlled central computer method which has 3 basis functions, which is controlling, monitoring and also optimizing. However, there is a BMS server software to facilitate the works of facilities management which to functioning within the building and also to fulfill the building operation and maintenance. General Requirement The BMS server system is composed of 3 sets of reducant computers, which ...

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Logical and physical network design

Published Date: 23 Mar 2015

5 Pages (1,677 Words)

Introduction In the world today, information communication and technology has become one of the most relied upon pillars for economic development. It is through technology that the entire universe has been reduced to a small village whereby persons far away from each other can interact freely on real-time basis. Hence, every business enterprise and institution for instance is gearing towards modernizing its operations through Information technology. As ...

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Memory Organisation And Random Access Memory Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,396 Words)

Memory stores, instructions and data. Memory is of two types, primary memory and secondary memory. Instruction or data given by input devices is first getting stored in the primary memory. Further user saves processed (executed) data in the secondary memory. Primary memory is temporary and secondary memory is permanent. Primary memory is the main memory of the computer system. It is faster than secondary memory. It directly ...

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Most Important Cybersecurity Vulnerability Facing It Managers Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,088 Words)

Vulnerabilities to exploitation in modern computers are varied. They range from web server vulnerabilities that allow attackers to take over the web server to very sophisticated side channel exploits that use things like packet timing or instantaneous power consumption to glean confidential information from computers. Vulnerabilities appear in the client software that members of an organization use to get their jobs done. The conclusion of this paper ...

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Implementation Of Parallel Image Processing Using Nvidia Gpu Framework Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (2,870 Words)

We introduced a real time Image Processing technique using modern programmable Graphic Processing Units in this paper. GPU is a SIMD (Single Instruction, Multiple Data) device that is inherently data-parallel. By utilizing NVIDIA's new GPU Programming framework, "Compute Unified Device Architecture" (CUDA) as a computational resource, we realize significant acceleration in the computations of different Image processing Algorithms. Here we present an efficient implementation of algorithms on ...

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How Does Digital Radio Work Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,605 Words)

Digital audio broadcasting, also known as digital radio and high-definition radio, is audio broadcasting in which analogy audio is converted into a digital signal and transmitted on an assigned channel in the FM frequency range. DAB is said to offer compact disc (CD) - quality audio on the FM (frequency modulation) broadcast band and to offer FM-quality audio on the AM (amplitude modulation) broadcast band. Digital radio ...

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What Is A Data Model Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,134 Words)

First I like to offer my special thanks for my Data Analysis and Design lecturer, Mr.Deloosha Abeysooriya International College of Business and Technology southern campus in Matara. He is the guider of my. Also another 12 student of my M11 Batch. Also I thanks to my another lecturer's International College of Business and Technology southern campus in Matara.absultely I offer my faithful thanks for who help me ...

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The Computer Worm Virus Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,312 Words)

The computer worms are programs that reproduce, duplicate independently and travel to spread across networks, it does not rely on the host file or boot sector and the transfer of files between computers to spread and this is the main key difference between the computer virus and the worm virus. Computer Worms are skilled to damage entire series of data as destroying crucial and important files, ...

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Ntroduction To Big Data Technologies Computer Science Essay

Published Date: 23 Mar 2015

19 Pages (7,299 Words)

Research and development in the area of database technology during the past decade is characterized by the striving need for better application support beyond the traditional world, where primarily high volumes of simply structured data had to be processed efficiently. Advanced database technology provides new and much-needed solutions in many important areas; these same solutions often require thorough consideration in order to avoid the introduction of new ...

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Challenges In Web Information Retrieval Computer Science Essay

Published Date: 23 Mar 2015

17 Pages (6,550 Words)

An overview of Information Retrieval is presented in this chapter. This defines the need of information retrieval. This discusses how the IR problem can be handled. It discusses about the model for efficient and intelligent retrieval. It briefly defines the major issues in information retrieval. It also discusses about the necessity of retrieval and the basis of the study for the motivation of the selection of search ...

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Automatic Encoding Detection And Unicode Conversion Engine Computer Science Essay

Published Date: 23 Mar 2015

18 Pages (7,168 Words)

In computers, characters are represented using numbers. Initially the encoding schemes were designed to support the English alphabet, which has a limited number of symbols. Later the requirement for a worldwide character encoding scheme to support multi lingual computing was identified. The solution was to come up with a 16 encoding scheme to represent a character so that it can support up to large character set. The ...

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An Overview Algorithms And Data Structures Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (2,974 Words)

Algorithms consist of a set of rules to execute calculations by hand or machine. It can also be defined as an abstraction consisting a program executed on a machine (Drozdek 2004). This program will follow operations carried out in sequence on data organized in data structures. These data structures are generally categorized into: Linear data structures examples which are arrays, matrices, hashed array trees and linked list ...

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A Swot Analysis Of Google Android Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,927 Words)

The Google EFFECT - Google is counted as one of the most reputed and respected companies of this era. The fact that Google is behind the Android OS platform gives it a great sense of credibility and viability in the eyes of the consumers, potential partners, and application developers. Furthermore Android's team has all the possible resources from Google such as financial, intellectual to make it a ...

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Comparison Between Lan And Wan Architecture Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,737 Words)

We have been given this assignment to discuss about the awareness of technologies that are related to the internet and the topic Internet application which we have decided that my topic will be Comparison between LAN and WAN architecture. Using this topic we would have to discuss the current and latest issues that are related to the topic and subject, furthermore discuss the uses of technology and ...

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History Of Lan And Wan Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,298 Words)

History of LAN and WAN which is the topic that chosen by me. The reason I choose this topic it is because nowadays people use to communicate with each other by using Internet rather than others traditional way. Some of them not really know what is it and what is the most common network are they using this recently. By doing this assignment, it allow me to ...

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Object oriented programming with subclasses

Published Date: 23 Mar 2015

3 Pages (917 Words)

Inheritance & Polymorphism Given Person class definition below: class Person { private String name; Person(String name) { this.name = name; } public String getName() { return name; } } Design two subclasses of Person, named Student and Employee. Make Faculty and Staff subclasses of Employee. An instance of Student has a class status (freshman, sophomore, junior, and senior). Declare the status as constants in the Student ...

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Relational Model Defined By Codds Twelve Rules Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,736 Words)

This report tries to explain what Codds Twelve Rules means. And by comparing MySQL with relational model as defined by Codd's Twelve Rules, this report also gives an abstract view on how MySQL comply with Codd's Twelve Rules. This report is based on MySQL 5 InnoDB engine. Edgar F.Codd is famous for his contribution to relational model of database in 1970s. However, in 1980s the term "relational" ...

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Functions And Classification Of Operating Systems

Published Date: 23 Mar 2015

7 Pages (2,489 Words)

The OS is the system software that controls the overall operation of the computer system. It manages the connected hardware, provides a platform to run application programs and an interface for users to interact with the computer system. It is responsible for recognising and organising memory devices, I/O devices and processing devices. Figure 10.1 displays the role of OS in the computer system. An OS provides two ...

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Security Features Of Network Hardware Devices Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,884 Words)

Describe the security features of network hardware devices. All network hardware devices need to have security functions which would prevent unauthorised access to systems and data and helps stop viruses malicious software from accessing the network. Network hardware devices include: Workstations Modems Routers Wireless Routers/WEP (Wireless Access points) Each network hardware device comes with its own security features. Workstation Workstations rely greatly on software to protect them ...

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A Study On The Android Operating System Computer Science Essay

Published Date: 23 Mar 2015

11 Pages (4,216 Words)

For a while long time now there was two operating systems for mobile phones dominating the market form mobiles, such as Symbian OS and windows mobile OS. In Jan 2007, apple became the third bug company that took place in the mobile market introducing the IPHONE that running the IN -HOUSE developed operating system Mac OS X. the new technology left the generation of keypad behind and ...

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Importance Of Java To The Internet Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,493 Words)

At the beginning Java was known as "oak" but it was renamed as Java in 1995. The main aim of this language was to provide platform independent language that could be used to create software to be embedded in various consumer electronic devices. Features of Java Java is a programmer's language. Java is cohesive and consistent. Except for those constraints imposed by the Internet environment Java gives ...

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The book of money ball

Published Date: 23 Mar 2015

5 Pages (1,736 Words)

Main points of the reading The book of Money ball is mainly concern with the idea of explaining way the Oakland Athletics (Oakland A's), one of the poorest teams in baseball, won so many games in 2002. The main character of the book, is Billy Bean, the manager of the Oakland A's. Billy with the help of his assistant Paul DePodesta's and inspire by Bill James tries ...

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how to make a justification report

Published Date: 23 Mar 2015

6 Pages (2,209 Words)

Justification Report 1. Introduction I have been appointed as a project manager of MPAG (Mostper Park Automobile Group Ltd) which is a fast growing campany formed by the merger of a number of garages who sell used cars. As the newly formed MPAG, the garages then became dealers for the Average Autos Car manufacturer. Subsequetly, as the business of each garage has expanded to cover the sale ...

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Innovative Polygram Substitution Cipher Method Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,072 Words)

Abstract: Information security has become an important aspect of computing systems. In this internet driven world, virtually every computer is connected to every other computer. We use computers for everything from banking and investing to shopping and communicating with others through email or chat programs. The communication may not be "top secret," but strangers should be avoided to read email, use computer to attack other systems, send ...

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Studying The Future Prospective Of Nanotechnology Computer Science Essay

Published Date: 23 Mar 2015

14 Pages (5,324 Words)

This paper explores the present impact of nanotechnology on the consumer market. It situates the technical aspects of nanotechnology and describes some early successes of nanomaterials embraced. It includes a description of technology developments in the area of automotive industry, biomedicine, household appliances, nanowires, nanotubes, nanobubble, nanochips, healthcare and numerous other nanostructured materials with a brief description of the number of research and development activities that are ...

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Multi User Chat System In Java Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,719 Words)

The aim of this project is to develop an multi-user chat system to facilitate communicate between users with in the corporate or scientific organization. Chat application is to allow user for private chat, group chat (conference chat), share files while chatting, store and archive communicated messages. Chat application should allow do download desktop based application installed on local system to connect chat server and user should bale ...

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Vector And Raster Data In Gis Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,273 Words)

A Geographical Information System (GIS) is a method of spatially storing, analysing, manipulating, managing and displaying geographical data. GIS data represents real objects such as roads, rivers, urban areas, place names, railway, places of interest, town names etc. with digital data determining the mix. A geodatabase is a database that is in some way referenced to locations on earth. Traditionally, there are two broad methods used to ...

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Library Management System

Published Date: 23 Mar 2015

4 Pages (1,325 Words)

Development and connection to multiple online /www database using jsp Introduction: There are many web based application running with only single database. It has some problems such as performance issues etc but we are going to implement the Our primarily purpose is to connect the multiple databases with the application to decrease the database terrific and make it efficient. On the other hand we will To Online ...

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Basic Firewall Operation Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (2,931 Words)

A firewall is a piece of software or hardware that filters all networkÂ traffic between the computer, local network or commercial network andÂ Internet.Â Firewall is a component of a computer system or networkÂ designed to block unauthorized access whileÂ allowedÂ communication.Â It is a device or group of devicesÂ configuredÂ deny, encrypt, decrypt, or proxy all (inside and outside) trafficÂ teamÂ between different security domains based on a setÂ Firewalls can be implemented in hardware orÂ software,Â orÂ a ...

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Risk Assessment For A Fictional Enterprise Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,318 Words)

Introduction The Risk Assessment plan is needed for this Fictional Enterprise as this uses the automated information to deal with the patient records and to process this information for better support of their mission risk management plan plays a critical role in protecting the organization's information assets. This risk assessment is to evaluate risk in the areas of technical, operational and management of EMR systems. This report ...

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Comparison Of Persistence Framework Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,526 Words)

Compare and contrast the following persistence frameworks: Java Persistence API (JPA), Hibernate and Java Database Connectivity. What improvements were made in EJB3.1 and JPA2? Include topics of scalability, security, connection pools, connection factories, entity management, transactional context, query languages, ORM, JCA, JNDI, the DAO-VO design pattern and specifically persistence layer(s) on a distributed n-tier enterprise platform in your discussion. Java Persistence API (JPA) JPA is an abstraction ...

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Basic Memory Management Without Swapping Computer Science Essay

Published Date: 23 Mar 2015

3 Pages (1,090 Words)

Program execution is the main propose of computer system .During execution programs are together with the data they access with in main memory. To keep track of what memory is in use and what memory is free is called memory management. Allocate the free memory to the process when any process needed the free space and de-allocates it when they don't need the free space. Ideally, programmers ...

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Software Requirements Specification For A Checkers Application Computer Science Essay

Published Date: 23 Mar 2015

29 Pages (11,452 Words)

The project is a checkers game, which is implemented in android and contains some of its important features to the user such as single player (vs computer), and two player, save game. Purpose The purpose of this document is to describe the behavior of the Checkers game, including non-functional requirements of the checkers game, constraints and other factors which provide a complete and comprehensive description about the ...

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