COMPUTER NOTES FORM FOUR

COMPUTER NOTES FORM FOUR – ALL TOPICS

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A computer is a mechanism or equipment that follows instructions from a software or hardware program to perform procedures, calculations, and operations.

It can accept data (input), process it, and then produce outputs.

What is computer studies?

A computer study is a subject which deals with features of computers and the ways and methods of using it.

What is a computer?

Is an electronic machine that accepts data from an input device performs arithmetic and logical operations according to predefined program and finally transfers the processed data to any output device.

An electronic machine that processes raw data to generate (produce) information.

Is an electronic machine that receives (accepts) input (raw data), processes it, and then produces output (information)

Is an electronic machine that can be programmed to accept data (input) and process it into useful information (output)

Is an electronic machine (device) that works under the control of stored programs, automatically accepting and processing data to produce information.

Is an electronic machine that operates (works) under the control of instructions(programs) stored in its main memory, that can accept data (input), manipulate the data according to specified rules (process), produce results or information (output), and store the results for future use.

A good definition of computer contains the basic functions of a computer i.e. input, process, Storage, Output.