Introduction to Computer
- The
word computer comes from "compute", which means to calculate.
- A
computer is basically a programmable machine capable of performing
arithmetic and logical operations automatically and sequentially. It is
also known as a data processor, as it can store, process, and retrieve
data as per the wish of the user.
- The
word calculates means to find out the result of some operation on a
number of values.
- In
computation, however, the meaning is not limited to the result of some
operation on numeric values.
- A computer can be defined as a multipurpose, programmable, electronic data processing device that is capable of accepting input, processing it, and producing refined data as output.
Data processing involves the following three activities –
- Input
of data
- Manipulation/processing
of data
- Giving
output (i.e. management of output result)
- In a
computer system, data is arranged orderly and systematically.
Computer is an electronic machine that accepts data using input device then store and processes them to generate desired output.