Introduction to computer

Computer is an electronic device, operating under the control of instructions stored in its memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use.  It has two component hardware and software .

Hardware is the electronic and mechanical equipment that makes up the computer and has four components which is input devices, output devices, storage devices, Storage Devices and System Unit.  

Software is a series of instructions that tells the hardware how to perform tasks. It has two components System Software and application Software. System software consists of the programs that control or maintain the operations of the computer and its devices.   It includes starting up the computer and opening, executing, and running application.

Operating System is type of system software. It is a set of programs containing instructions that coordinate all of the activities among computer hardware resources. Utility program is a type of system software that allows a user to perform maintenance-type tasks.
In my opinion it is give more details about computer but it is not useful because it not give us new information.  .

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