electronic document preparation and management

A computer is an electronic device

that manipulates information, or

data. It has the ability

to store, retrieve,

and process data.

Super Computer

Mainframe Computer

Minicomputer

Microcomputer

The most powerful computers in terms of

performance and data processing.

These are specialized and task specific

computers used by large organizations to

conduct research.

They are very expensive and very large in

size.

Space Exploration

Earthquake studies

Weather Forecasting

Nuclear weapons testing

They are quite expensive

Used by large firms and government organizations to run their business operations.

It can process and store large amount of data.

Banks and educational institutions use mainframe computers to store data about their customers and students.

Minicomputers are used by small

businesses and firms.

They are also called as “Midrange

Computers”.

These computers are not designed for a

single user.

Minicomputers are for specific

purposes.

Desktop computers, laptops, personal

digital assistant (PDA), tablets & smart

phones are all types of microcomputers.

They are the cheapest among the other

types of computers.

They are designed for general usage

like entertainment, education and work

purposes.

Goodwill Community Foundation . (1998-2014). Computer Basics: What is a Computer? Retrieved from http://www.gcflearnfree.org/computerbasics/1

Jones, D. (2002). Introduction to Basic Computer: types of computer. Retrieved from wordpress.com: http://www.teach-ict.com/xml/finished/351/maze.htm