Hardware and Software:

Whenever we talk about computer, we visualize the physical parts of computer and non-physical parts like programs. A complete system can be studied under two headings:

1.Hardware: - The physical components of a computer system, which can be seen & touched, such as computer itself, its modules & the input & output devices & auxiliary devices are called hardware. It is just a mechanism of the computer. All the devices attached to the computer system like: Mouse, Keyboard, Monitor, CPU and Motherboard & Hard Disk.
2.Software: - Software is nothing but the computer program. Software is the set of Programs, which is used for different purpose. Software is basically the set of instruction grouped into program from that make the electronic device in the computer to function in desired ways.