Information Technology is advancing beyond our expectation. The rate of development of any nation depends on how innovative the peoples are. One of the most logical product of technology is Computer.
Computer is a machine capable of accepting data, process it (under sequence of instructions), store it and provide information. Data is something that cannot be use to decide as such it needs to be processed. This data accepted by Computer is called input and the part of the system responsible for manipulation of data is called Processor. An input device like Keyboard is used to input data and after processing the machine can save it permanently in hard drive or other external storage devices before providing a reasonable information known as output. The output can then be use by companies and other organizations for decision making.
The four basic operations or functions of computer can be extracted from the above paragraph as follows:
Input, processing, storage and output operation.
What is more surprising and more logical is how the communication is taking place between the mentioned computer parts and the user.