Perfect Computer Notes

A system is a set of inter related components that work together to fulfill a purpose. For example a Road Transportation System will consist of the parts - roads, vehicles- trucks, buses, vans, cars etc, passengers, the staff for ticketing and maintenance of vehicles and roads etc. And the transportation system will fulfill the purpose of carrying of passengers and luggage from place to place. Similarly, a computer system consists of many components that work together to fulfill the purpose of data processing. A Computer system consists of the following four parts: 1.    Hardware 2.    Software 3.    Data 4.    User 1.    Hardware The mechanical devices that makeup the computer are called HARDWARE , for example, Keyboard, hard disk, monitor, processor and mother board etc. Hardware are physical devices . They can be touched. Hardware device are interconnected and perform input, processing and output operations. 2.    Software Software is the set of instructions given