A computer is an electronic device that can read, write, compute, compare, store, and process large volumes of data with high speed, reliability, and accuracy. There are three main types of computers: analog computers which operate on continuous ranges of values or voltages, digital computers which operate using binary numbers of 0s and 1s, and hybrid computers which combine aspects of analog and digital computers. Key features of computers include high speed, reliability, accuracy, large storage capacity, and versatility.

1. COMPUTER AND ITS
FEATURES
COMPUTER:-Computer is an electronic device which can read
and write , compute and compare store and process large
volume of data with very high speed, reliability and great
accuracy.

2. Types of computer
 1. Analog computer
 2.Digital computer
 3.Hybrid computer

3. WHAT IS ANALOG COMPUTER:--
Analog computer :-It is a computing device that works on
continuous range of values or voltage
Digital computer:--A digital computer operates
on digital data .It use binary number system(only two digit 0 or 1).
Hybrid computer:-A hybrid
computer combine the desirable
feature of analog and digital computer.

4. Features of Computer
 1.HIGH SPEED
 2.RILIBILITY
 3.ACCURACY
 4.STORAGE
 5.VERSALITY