Computer Concepts – Illustrated 8th edition Objectives * Define computers *Explore how computers work *Categorize computers *Examine personal computers *Introduce software *Introduce the Internet and the Web *Understand email basics Defining Computers Computer * An electronic device that: * Accepts input * Processes data * Stores data * Produces output * Uses instructions in stored programs Personal computer (PC) Computer system
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Table of contents Introduction……………………………..……………..1 Task1 The Media Used…………………………………………………….2 The Connectors Used…………………………..…….2 The Cost of cabling and installation…………………2 Fig. 1…………………………………………………….3 Recommandation……………………………………….4 Task2 Data Transfer rate and/or Memory Storage space..5 Hardware options……………………………………..5 Cost of Purchase and installation…………………...5 Fig .2 ………………………………………………….6 Recommandation……………………………………..7 Task3 Security Issues………………………………………8 Protection from
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Introduction to Computer Viruses It’s Saturday morning. You boot up your Windows 98 computer and lo and behold‚ the graphics on the desktop are a mirror image of what they should be. Congratulations‚ you have a computer virus! According to "Virus Bulletin‚" the Oxfordshire‚ England-based technical journal that tracks viruses‚ this new virus flips any uncompressed bitmaps horizontally‚ but only on Saturdays. This bulletin credits GriYo of the 29A virus-writing group as the author of this 32-bit
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NETWORK Computer Network also called Network is a group of computers and other devices connected to each other to share resources electronically. Networks can be as small as two computers or many thousand computers that are connected to one another. These computers are usually connected to one another through wires‚ satellite‚ and modems. Each device connected to the network is called a “node”‚ and the computer that is connected to the network is called a workstation. There are several ways
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Introduction to Data Management and File management Most computers are used for data processing‚ as a big growth area in the “information age” Data processing from a computer science perspective: Storage of data Organization of data Access to data Processing of data Data Structures vs File Structures Both involve: Representation of Data + Operations for accessing data Difference: Data structures: deal with data in the main memory File structures: deal with the data in the
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of malware. They spread over computer networks by finding operating system vulnerabilities. Worms typically cause harm to their host networks by consuming bandwidth and shorting out web servers. Generally‚ the intent of the worm is to be malicious. There are some worms however‚ which do not have malicious intent. They are referred to as anti-worms. Computer worms are classified as a type of computer virus‚ but there are several characteristics that distinguish computer worms from regular viruses
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Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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Topic name:- Importance Of Computer Assign no:- 2 Name:- Suneel kumar Class :- BBA 1A Reg no:- 1211243 Dated:- 08\7\2013 Submitted to:- Sir:- Haris Chugtai Importance Of Computer In Our Life Many technological advances have been made throughout history making life easier‚ one of which is the computer. Computers have changed the world‚ as
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Computers have brought up a revolutionary change in the past couple of decades. They are everywhere now and are being used by everyone. They are being used in every field as they provide the facility of storing large data safely which can be easily accessed and managed. They play vital role in our daily life owing to facilities it provide which are beyond our imagination .Their wide application has made the computer education a must. As computers are being used widely these days‚ gaining computer
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