Micro computers

A computer which is based on microprocessor is called a microcomputer.It is small low cost,digital computer.The microcomputer has a microprocessor on a single chip which is it's Central Processing Unit.It also have other units like input/output devices,memory unit.The most obvious difference between a microcomputer and mainframe computer is the physical size.A mainframe can fill a room where as a microcomputer can be put on a table or even kept in a briefcase.These days microcomputers also can process words or numbers,store and retrieve information.
Micro computers have wide range of applications for example: general purpose calculations,instrumentation,industrial control,office automation etc.