The computer is the machine that uses the binary numeral system to perform operations on data.
A computer can range from just a slightly more complicated calculator, to an enormously sophisticated and powerful machine in its own right and it may belong in one of several categories: personal computers (PC), servers, workstations, or even embedded systems. Some people also refer to less powerful machines as “microcomputers” which form a group comparable with Apple Macintosh and Linux-based devices such as Google’s Chromebooks or Xiaomi’s Mi Pad line of tablets.