What is Computer : Computer is an electronic device that is designed to work with Information.The term computer is derived from the Latin term ‘computare’, this means to calculate.Computer can not do anything without a Program.it represents the decimal numbers through a string of binary digits. The Word 'Computer'usually refers to the Center Processor Unit plus Internal memory.
Computer
is an advanced electronic device that takes raw data as input from the
user and processes these data under the control of set of instructions
(called program) and gives the result (output) and saves output for the
future use. It can process both numerical and non-numerical (arithmetic
and logical) calculations.The basic components of a modern digital
computer are: Input Device,Output Device,Central Processor. A Typical modern computer uses LSI Chips.
Charles Babbage is called the "Grand Father" of the computer.The First mechanical computer designed by charles Babbage was called Analytical Engine. It uses read-only memory in the form of punch cards.
Four Functions about computer are:
accepts data
|
Input
|
processes data
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Processing
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produces output
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Output
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stores results
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Storage
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Input (Data):
Input
is the raw information entered into a computer from the input devices.
It is the collection of letters, numbers, images etc.
Process:
Process is the operation of data as per given instruction. It is totally internal process of the computer system.
Output:
Output
is the processed data given by computer after data processing. Output
is also called as Result. We can save these results in the storage devices for the future use.
