What is Computer?
A computer is a device that accepts information in the form of digitized data and manipulates it for some result based on a program or sequence of instruction on how the data is to be processed. Complex computer also include the means for storing data(including the program which is also form a data) for some necessary duration. A program may be invariable and built into the computer and called logic circuitry as it is on microprocessors or different program may be provided to the computer(loaded into its storage and then started by an administrator or user).