Friday, 25 October 2013

What is a computer

It is an electronic device.
It has the ability to store,retrieve and manipulate data.
It is a device that accepts information and manipulates it for some result based on a sequence of instructions on how the data is to be processed.
It accepts inputs,stores,manipulates and generates output in form of number,text,graphics,voice or video file according to the instructions called programs.
It consists of input device,output device and CPU.
It can be used to type documents,send email,browse internet.
All types of computer consist of two basic parts-hardware and software.
Hardware is any part of computer that has a physical structure,such as a computer  monitor or a keyboard.
Software is any set of instructions that tells hardware what to do.Examples are web browser,game,and word processors such as Microsoft word.
Hardware examples-

 Software example-

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