The term computer is used to describe a device made up of electronic and electro mechanical components. The computer itself cannot perform any task and is referred to as hardware.
A computer system consists of three elements.
Hardware : The physical components which you can see, touch and feel in the computer system are called hardware Eg monitor, keyboard, mouse etc.
Software : Software is used to describe the instructions that tells the com-puter how to perform a task. Software is categorized
1) System softwares ( eg . operating systems, compilers, editors etc)
2) Application softwares ( MS-word, excel, accounting packages etc)
People : People who operate the computer and also create computer soft-ware instructions.