Computer and Digital Computer

In simple terms, computer is a machine which can perform arithmetic or logical operations.

The word “Computer” comes from compute. Compute means “to calculate” and this term “compute” comes from Latin word “computare“.

Computer definition
Computer is an electronic machine which takes data as input, processes it and gives information as output.
Digital computer definition
A computer that represents discrete(digital) information by numerical (binary) digits is called a digital computer. Generally it uses binary number system and thus it can understand only 0 and 1.