About Computer

A Computer is an electronic device assembled to take raw data as input from the user and process these data under control of a set of instructions called programs and gives the result in the form of output for the future use that can be both numerical and non numerical in the form of arithmetical and logical calculations that work in the form of information that can be stored and used in future.

The term computer is derived from the Latin term called ‘computare’ which means to calculate or programming machine that represents a decimal number through a string of binary digits of 0 and 1. Computer can not do anything without a Program.

The Word 'Computer' usually refers to the Center Processor Unit plus Internal memory. Charles Babbage is called the "Grand Father" of the computer.The basic components of a modern digital computer are: Input Device, Output Device, Central Processor Unit (CPU), mass storage device and memory. A Typical modern computer uses LSI Chips.  

Four Functions about computer are shown below in a table format. Understand it.

Accepts Data
Processes Data
Produces Output
Stores Results

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 (Data):

Process is the operation of data as per given instruction. It is totally internal process of the computer system.

Output (Data):

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.

A computer is divided into Computer Communications, Computer Certification, Data Recovery, Games, Hardware, Home Entertainment, Mobile Anti Virus, Network, Software and Web Development. Click on a link below in which you are interested in any category of Computer.


Computer Certification

Data Recovery



Home Entertainment



Web Development

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