Computer Science Essays | Free Essays on Computer Science

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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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Advantages And Disadvantages To Javascript Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,202 Words)

The ability to make site inspection data and real-time response, it should use the technology called AJAX Asynchronous JavaScript and XML. AJAX is a name for a group of technologies, including JavaScript, CSS and XML. It can run in Web browsers, enhanced interactivity, ease of use and speed. JavaScript may be a client-side scripting language developed by Netscape development. JavaScript is published since 1996. At the time, ...

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Video rental and sales system

Published Date: 23 Mar 2015

25 Pages (9,894 Words)

A dissertation submitted in partial fulfilment of the University of Greenwich's Bsc (Hons) Software Engineering Abstract In the current business functions, an especially rental resource is on of the main challenging part. So that, utilising the resources that are implemented by the companies. The business processes are the major task according to the project budget as well as time limitation. So that software solutions those managing and ...

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Introduction To Computer Components Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,392 Words)

A keyboard is a computer hardware input device. keyboard is similar to the mechanical typewriter design, if we compare to keyboard with other computer hardware it is technological advance.New ergonomic keyboards can cost as much as a central processing unit or quality computer monitor. Instead of mouse the keyboard is often the principal input device on home and office computers.the basic functions of keyboards are it is ...

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Engineering Drawing Distinction Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,529 Words)

There are two methods of producing engineering drawings. The most common way of drawing in engineering used to be done by hand on a piece of paper. These drawings were time consuming; they needed precision and skilful draftsman. They are still used because this is a quick method if we talk about simple sketches. On paper we can draw in different techniques that include isometric, oblique and ...

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Memory Management In Unix Operating System Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,047 Words)

Introduction to UNIX According to Leon, 2007, UNIX is an operating system (OS) is software that manages hardware and software resources of a computer. UNIX was first developed in the 1960s and has been constant development ever since. UNIX is one of the most widely used operating systems in industry, government and education. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops. UNIX Memory ...

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The Rayleigh Ritz Method Computer Science Essay

Published Date: 23 Mar 2015

8 Pages (2,917 Words)

The given assignment is done with the soul purpose of developing an intense knowledge and understanding of vibrational behaviour and dynamic response of structures. The assignment aims to apply up to date methods of structural dynamics in aerospace and aerospace system engineering. Here we use Rayleigh-Ritz method and Finite Element method to obtain the natural frequency and mode shape of the given cantilever beam. 1. Rayleigh-Ritz Method ...

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Apple inc.

Published Date: 23 Mar 2015

9 Pages (3,548 Words)

Background of Apple Inc Apple inc. is a based American corporation that manufactures and designs Smart electronic products ranging from computer software, hardware to other consumer electronics. The company has a an outstanding Macintosh personal computer line, Mac OS X, for its exceptional dependable user base which makes them significantly stand out, the iTunes media application and the iPod personal music player. The company has its base ...

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Application Of Mealy Machine And Recurrence Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,737 Words)

Cryptography is the study of techniques for ensuring the secrecy and authentication of the information, public key encryption schemes are secure only if the authenticity of the public key is ensured. The importance of security of data is ever expanding with increasing impact of internet as means of communication and e-commerce. It is essential to protect the information from hackers and eavesdroppers. In this paper, with the ...

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The Functions Of Netbios Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,776 Words)

NetBIOS was developed by IBM and sytek as an API for client software to access LAN resources anda also for accessing networking services. Netbios has extended its services to use netbios interface to operate on IBM token ring architecture. Netbios(network basic input/output system) is a program which allows communication between applications of different computer to communicate with in a LAN . netbios allow applications to talk on ...

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Types Of Software Testing Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,624 Words)

Software testing gives independent view of the software to which allow the business to understand the risks of implementating the software. The software Test system are not limited to executing a program or application to finding software bugs in existing software or the developed one which has created for customer request. Software Testing can also define as the process of validating and verifying software programe, application ...

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Advantages And Disadvantages Ajax And Flex Flash Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,417 Words)

Ajax and Adobes Flash Flex are both used to create dynamic and interactive web applications. Both are platform independent i.e. contents will render the same across different platforms and permits for interface animation. There are many similarities between the two. However, there are considerable differences as well. Say for example, Flash is animation format software that allows for fast download of animation files in a resizable format ...

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Stateless Auto Configuration Addressing With Ipv6 Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,696 Words)

Because of the ever increasing amount of devices that require IP addresses, IPv4 addressing will no longer be enough to provide these devices with an IP address. IPv6 was introduced to solve the problems of the exhaustion of IPv4 addresses by increasing the IP address size from 32b to 128b. This allows for more than enough IP addresses to be given out and is no chance of ...

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Advantages And Disadvantages Of Remote Working System Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,282 Words)

Introduction The following report will be based on providing potential requirements of the basic scenario and a through explanation of advantages and disadvantages of updating the current network of the EERP Company. By analysing the key requirements it is clearly explained that the EERP is having two major employee classes as senior staff and junior staff. Junior staff works in the office which mean that they worked ...

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Airline Reservation System Ars Software Requirements Specifications Computer Science Essay

Published Date: 23 Mar 2015

12 Pages (4,634 Words)

Airline reservations system (ARS) is a online software application used to reserve and retrieve information and perform transactions related to air travel. Originally designed and performed by airlines, ARSes were later developed for the use of travel agencies. Major ARS operations that book and sell tickets for multiple airlines are known as Global distribution systems (GDS). Airlines have divested most of their direct holdings to dedicated GDS ...

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Defining The Input And Output Devices Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,360 Words)

In the Airline, input and output devices are significant equipment to operate the information system. Input devices are hardware components that enable users to interact with the computer and used to transfer data from outside world to computer system. Without input devices, you would not able to feed instructions to a computer. The most common input devices are mouse, keyboard, scanner, webcam, touch screen, microphone and so ...

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The GSM frequencies

Published Date: 23 Mar 2015

9 Pages (3,525 Words)

GSM900 uses the radio frequency range 890-915 MHz for receive and 935-960 MHz for transmit. RF carriers are spaced every 200 kHz, allowing a total of 124 carriers for use. Extended GSM (EGSM) The BSS software is capable of supporting an extra 10 MHz bandwidth in the uplink and downlink, known as Extended GSM900 (EGSM900). The extended frequency range is 880-890, trasmit and 925-935, receive. Provided the ...

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Dynamic Systems Development Method (DSDM)

Published Date: 23 Mar 2015

7 Pages (2,617 Words)

Abstract: Recently, agile development has become a preferred development approach in many of world's leading technology companies. The primary reasons for a shift towards Agile development are accelerating delivery, aligning business and market needs, and continuous improvement in the development methodology to suit customer/supplier requirements. There are a number of methodologies being followed in developing software. Dynamic Systems Development Method (DSDM) is one of the Agile methods ...

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The Fetch Execute Cycle Computer Science Essay

Published Date: 23 Mar 2015

9 Pages (3,372 Words)

Within this report about Computer Hardware, the report will cover the main concepts of computer hardware. Within this report there will be information about the main concepts of a computer system also. These main concepts will include Processors, Memory (Primary and Secondary), Input and output devices under the user types and networking, and support elements that will help the overall performance of a computer. Processors are parts ...

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File Management In Operating Systems Computer Science Essay

Published Date: 23 Mar 2015

4 Pages (1,517 Words)

File management is organizing and keeping track of files and folders. It helps you stay organised so information is easy to locate and use. Using the file management tools, you can save files in folders with appropriate names so these files can be found or identified easily, create new folders quickly for recognition of information, delete unnecessary files and folders, search for files and folders, create shortcuts ...

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SAP Brief Information And Study Computer Science Essay

Published Date: 23 Mar 2015

9 Pages (3,334 Words)

Nestle SA, the world largest food and beverage company decided to implement SAP systems to all of their branches and subsidiaries company. This project call Nestle Globe project (Global Business Excellence) roll over 500 facilities in 70 countries around the world and using enormous amount of budget at $2.4 billion. Nestle Globe have three objective To Create standard best practices business process for Nestle organization To create ...

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Digital Voltmeter Using An 8051 Microcontroller Computer Science Essay

Published Date: 23 Mar 2015

17 Pages (6,616 Words)

A voltmeter finds its importance wherever voltage is to be measured. AÂ voltmeterÂ is an instrument used for measuring theÂ electrical potentialÂ difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit. General purpose analog voltmeters may have an accuracy of a few per cent of full scale, and are used with voltages from a fraction of ...

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Types Of Data Compression Computer Science Essay

Published Date: 23 Mar 2015

5 Pages (1,853 Words)

Data compression has come of age in the last 20 years. Both the quantity and the quality of the body of literature in this field provide ample proof of this. There are many known methods for data compression. They are based on different ideas, are suitable for different types of data, and produce different results, but they are all based on the same principle, namely they compress ...

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Types Of Mobile Computing Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,460 Words)

The object of mobile computing is to develop system, add more features to mobiles and hand hold things which make life easier and application level software, which is working with battery or battery powered terminals equipped with the wireless network connection. Companies are spending billions of money on these things to developing new technology and buying spectrum in the recent PCS auctions cause of their rapidly growing ...

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Components Of A Good Password Computer Science Essay

Published Date: 23 Mar 2015

11 Pages (4,345 Words)

Computer manufacturer and OS developers often build and deliver systems in default modes to secure the system from external attacks. From developer's view this is the most efficient mode of product delivery. As per the organisation or a user, they require more protected and secured system before it is placed into service. Security baselines are standards which defines a minimum set of security controls for organisations. Security ...

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Printers And Printer Types Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,700 Words)

A printer is an output device that produces text and graphics on a physical medium such as paper. Laser Printers A laser printer is a high-speed, high-quality nonimpact printer. AÂ laser printerÂ is a common type ofÂ computer printerÂ that rapidly produces high quality text and graphics onÂ plain paper. As with digital photocopiersÂ andÂ multifunction printersÂ (MFPs), laser printers employ aÂ xerographicÂ printing process but differ from analog photocopiers in that the image is produced by ...

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Cable Modem Cloning Hacking Communication Computer Science Essay

Published Date: 23 Mar 2015

20 Pages (7,990 Words)

Cable modem is a communication device. This device allows us to connect our PC or laptop to cable Television line and receive data from operator at speed of 1.5 Mpbs or more. Data rate is much more then telephone modems (28.8 or 56 kbps) and 128 kbps given by ISDN (integrated services Digital Network). It is almost equal to Digital Subscriber Line (DSL) telephone service. Cable modem ...

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Triple Des Against A Brute Force Attack Computer Science Essay

Published Date: 23 Mar 2015

6 Pages (2,078 Words)

Over the last few years, the Internet has evolved into a ubiquitous network and inspired the development of a variety of new applications in business and consumer markets. So, Multiprotocol Label Switching is another Challenge and a versatile solution to address the problems faced by present- day networks. Main objective of MPLS is to provide Security in the data exchanged. So, In this paper we have implemented ...

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Database Design And Development For Petcare Veterinary Computer Science Essay

Published Date: 23 Mar 2015

14 Pages (5,480 Words)

Draw an Entity Relationship Data Model that describes the content and structure of data held by PetCare. Specify the cardinality ratio and participation constraint of each relationship type. Database Development Process The process is divided into four main stages: requirements elicitation, conceptual modeling, logical modeling and physical modelling. The techniques used in the development process naturally divide into three categories: those concerned modelling, those concerned with logical ...

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A Report On Bios And Cmos Computer Science Essay

Published Date: 23 Mar 2015

7 Pages (2,446 Words)

This is a written assignment where students are required to write a report on BIOS and CMOS. Describe the different types of BIOS and CMOSs and what are the current technologies and models for BIOS and CMOSs. Students can also address what are the possible symptoms for BIOS and CMOSs failures and how to fix them. Plagiarism Detector: http://www.plagiarismdetect.com. All you need to do is paste/upload your ...

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Horizontal and vertical handover in wireless and cellular environment

Published Date: 23 Mar 2015

31 Pages (12,200 Words)

Chapter 1 Introduction In 1984, when Marconi had seen practical reality, he had also seen the commercial possibility for a system of telegraphy, which is absolutely free from the limitations of wires. The invention of transistor a century later has led to the ability for everyone to communicate while on the move. Today, it is purely a matter of convenience; to make and receive calls at ...

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