1. Introduction of Computer
1.1 What Is Computer?
A computer is an electronic data processing device which can read and write, compute and compare, store and process large volume of data with high speed, accuracy and reliability. A computer has several components like Keyboard, Mouse, Processor, Memeory, Monitor etc.
The basic Organisation of a computer includes the following:
1. Input Unit: The data is entered using an input device such as a Keyboard or a Mouse.
2. Processing Unit: The computer processes the data according to a set of instructions called Program.
3. Output:The computer returns the processed information in the form of output that can either be printed or displayed on the output devices like Printer or Monitor.
4. Memory: The computer saves the data and the instructions in the memory for further retrieval.