Here are some vital features of the computers – A computer is one of the smartest electronic devices – It accepts the data and performs several pre-fined calculations to produce the results. Lightning-fast speed – A computer is capable of performing even the most complex calculations within a blink. Huge storage space – A computer can store a massive amount of data. It is a device designed to collect, retrieve and store data. Versatile device – A computer is a multi-tasking device that can perform several jobs simultaneously with excellent efficiency.