What is computer? Explain different types of computer.
Definition of computer:
The word ‘computer’ comes from the word compute which means to calculate. A computer is a device that works under the control of stored programs, automatically accepting, storing data and processing data (information ).
Types of computer:
Generally computer is
classified by by purpose, use or age of technology. There are types three of
computer. Such as
(a) Digital;
(b) Analog;
(c) Hybrid.
Digital computer:
Digital computer process data
that is presented in the forms of discrete values (eg 0, 1, 2, 3,-------) by
operating on it in steps. Discrete vales occur at each step in the operation. Counting
one’s fingers is probably the simplest digital operation.
Analog computer:
To measuring instruments such
as thermometers and voltmeters with pointers on circular dials. They process
data in the forms of electrical voltages. The output form of analog computers
is often in the form of smooth graphs from which information can be read.
Hybrid computer:
This computer is made by the
combined feather of digital and analog computers.
