Analog computer : Analog computer measure the physical properties like voltage in a circuit liquid level temperature etc. these computer measure any value on the basis of comparison.                 Digital computer:        Digital computer in contrast manage a fixed numbers of possible values. The computers which work on binary digits ( 0,1) are called are very popular.                Hybrid computer:  Hybrid computers are the combinations of analog and digital computers in hybrid computers the properties are firstly measured and then converted into numbers.                     Micro computer: all the computers which consist of a micro processor chip can be addressed as micro computers. They are very small in size and make to be used by individuals.                  Mini computer: mini computers are less efficient and store less data than mainframe computers. They have limited range of peripherals.                 Mainframe computer: Mainframe are very powerful computer and they are used as a big network of computer which can store data and resources.