It Report

Powerful Essays
Topics: Computer
1/21/2013
Computer–History, Generations, Hardware, Future

BY: Anson Martin D’costa Fasil T. V. Merin Varghese Prince Daniel Shibin T. V. Vibith P. V.

Table of Contents 1. Introduction 3 2. History of Computer 4 3. Generations of Computer 7 4. Computer hardware 10 4.1 Central Processing Unit 10 4.2 Input Devices 11 4.3 Output devices 13 4.4 Memory of the Computer 15 5. Future Computer Technology 18 Bibliography 23

Chapter 1. Introduction
Computers are machines that perform tasks or calculations according to a set of instructions, or programs. The first fully electronic computers, introduced in the 1940s, were huge machines that required teams of people to operate. Compared to those early machines, today 's computers are amazing. Not only are they thousands of times faster, they can fit on your desk, in your lap, or even in your pocket.
Computers work through an interaction of hardware and software. Hardware refers to the parts of a computer that you can see and touch, including the case and everything inside it. The most important piece of hardware is a tiny rectangular chip inside your computer called the central processing unit (CPU), or microprocessor. It 's the "brain" of your computer the part that translates instructions and performs calculations. Hardware items such as your monitor, keyboard, mouse, printer, and other items are often called hardware devices, or devices.
Software refers to the instructions, or programs, that tell the hardware what to do. A word processing program that you can use to write letters on your computer is a type of software. The operating system (OS) is software that manages your computer and the devices connected to it. Two well-known operating systems are Windows and Macintosh operating system. Your computer uses the Windows operating system.

Chapter 2. History of Computer

The word ‘computer’ is an old word that has changed its



Bibliography: (n.d.). Retrieved 1 15, 2013, from http://www.cbtplanet.com: http://www.cbtplanet.com/articles-tutorials/the-future-of-computers.htm (2013). Retrieved 1 4, 2013, from http://en.wikipedia.org: http://en.wikipedia.org/wiki/Computer By Gary B. Shelly, S. M. (2011). intoduction to computers . boston, USA: Shelly Cashman. Dimmel, B. (2012, 12 19). Retrieved 1 14, 2013, from http://www.sikhnet.com: http://www.sikhnet.com/news/ibm-future-computers-detect-smell-taste-sound Hames, R. (2011). Retrieved 1 12, 2013, from http://www.crews.org: http://www.crews.org/curriculum/ex/compsci/articles/history.htm learnfree. (2010, feb 8). Retrieved january 9, 2013, from http://www.gcflearnfree.org: http://www.gcflearnfree.org/computerbasics/1.4 Staff, W. (2010, june 22). Retrieved 1 8, 2013, from http://www.webopedia.com: http://www.webopedia.com/DidYouKnow/Hardware_Software/2002/FiveGenerations.asp Steitz, B. (2006). Retrieved 1 9, 2013, from http://people.bu.edu: http://people.bu.edu/baws/brief%20computer%20history.html Wells, D. (2008). computer concepts basic. USA: harry jhonson.

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