A Computer could be a general purpose device used for the aim of arithmetic or logical operations. The word ‘computer’ comes from the word compute which implies ‘to calculate’. Computers were developed from calculators, then the requirement arose for additional complicated calculations. Charles Babbage is known as the father of computers, then enforced his plan of programmable computer that might calculate and print logarithmic tables with huge precision.
Modern computers area unit electronic and digital. the actual machinery -- wires, transistors, and circuits -- referred to as hardware; the directions and data area unit referred to as code.
In addition to those elements, many others build it potential for the basic elements to work at the side of potency. As associate degree example, every computer wants a bus that transmits data from one an area of the computer to a special.
Computer Classification, By Size and Power
A Computers may be a programmable machine. The two principal characteristics of a computer are: it responds to a selected set of directions in a very well-defined manner and it will execute a recorded list of directions (a program).
Modern Computers Outlined
All general-purpose computers would like the next hardware components:
Memory: Permits a computer to store, a minimum of in short, data and programs.
Mass storage device: Permits a computer to permanently retain large amounts of information. Common mass storage devices embrace disk drives and tape drives.
Input device: Generally a keyboard and mouse, the device is that the passage through that data and directions enter a computer.
Output device:A visual display unit, printer, or completely different device that helps you to examine what the computer has accomplished.
Central processing unit (CPU): The guts of the pc, typically this can be often the part, that actually executes directions.
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Computer Classification, By Size and Power
Computers are generally classified by size and power as follows, though there is sizeable overlap:
Personal Computer: A small low, single-user computer supported a small chip. to boot to the small chip, a personal computer incorporates a keyboard for returning into data, a monitor for displaying information, and a tool for saving data.
Workstation: A robust, single-user computer. A computing machine is form of a computer, but it is a plenty of powerful small chip and a higher-quality monitor.
Minicomputer: A multi-user computer capable of supporting from 10 to several users at an equivalent time.
Mainframe: A robust multi-user laptop capable of supporting many scores of or thousands of users at an equivalent time.
Supercomputer: Associate degree particularly fast computer which is able to perform several ample directions per second.
By RR Team
Pattabhi Foundation
By RR Team
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Pattabhi Foundation
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