classification of computer

classification of computer - TOPIC: NAME: S/O: CLASS:...

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COMPUTER: TOPIC: CLASSIFICATION OF COMPUTER NAME: ABDUL GHANI SHAHZAIB S/O: MOHAMMED ARIF CLASS: BSCS-I SECTION A BATCH: 2008-2012 SUBJECT: INTRODUCTION TO COMPUTER SCIENCE-I TEACHER: MR. BADAR SAMI DEPARTMENT: COMPUTER SCIENCE DATE: 21-01-2008 INSTITUTE: KARACHI UNIVERSITY
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A computer is a machine that manipulates data according to a list of instructions. ‘Or’ WHAT IS A COMPUTER? A computer is an electronic machine that accepts information, stores it until the information is needed, processes the information according to the instructions provided by the user, and finally returns the results to the user. The computer can store and manipulate large quantities of data at very high speed, but a computer cannot think. A computer makes decisions based on simple comparisons such as one number being larger than another. Although the computer can help solve a tremendous variety of problems, it is simply a machine. It cannot solve problems on its own. CLASSIFICATION OF COMPUTERS: Generally computers are classified in to following three types. 1. Classification according to purpose. 2. Classification according to types of data handled. 3. Classification according to capacity. 1. CLASSIFICATION ACCORDING TO PURPOSE . This type is further classified into two following types. a) General Purpose Computer. b) Special Purpose Computer . a) GENERAL PURPOSE COMPUTER. A computer designed to perform, or that is capable of performing, in a reasonably efficient manner, the functions required by both scientific and business applications. Note: A general purpose computer is often understood to be a large system; capable of supporting remote terminal operations, but it may also be a smaller computer, e.g., a desktop workstation. “The forms of general purpose computing I believe that, for the foreseeable future, general purpose computing platforms will be an important part of more and more people's lives. There will probably be at least three such platforms: big, medium, and small. The big platform will be fixed in location, and have specialized things connected to it. These "servers" will be the least common of these devices, mainly controlled by people whose job it is to work with them. The medium devices are those used on the table or equivalent -- the Personal Computer as we know it today. It will probably go through some mechanical transformations, mainly related to ergonomics like being carried able ("laptop") and to make adding new devices and
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capabilities easier. It will be used by most people as part of their work and hobbies if appropriate and for personal communication, information gathering, and some entertainment. You'll spend minutes to hours at a time using it. The small platform will be "hold able" (e.g., fit in a pocket) and be used for work, hobbies, communication, etc., but for applications that are much shorter in duration, such as seconds to minutes. Smaller devices will be more special purpose.” - Dan Bricklin, 26 March 2001 A PERSONAL COMPUTER IS A GOOD EXAMPLE OF GENERAL PURPOSE
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This note was uploaded on 11/06/2010 for the course UBIT 411 taught by Professor Saleemelahi during the Spring '10 term at University of Karachi.

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classification of computer - TOPIC: NAME: S/O: CLASS:...

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