There are five main kinds of computers based on size: PC (Personal Computer), minicomputer, microcomputers, supercomputers, and mainframe. Additionally, there are three different kinds of computers based on their capacity to manage data: A computer can be digital, hybrid, or analog.

A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use1. Any kind of computers consists of HARDWARE AND SOFTWARE.

It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.

What is a computer? A computer is a machine that can store and process information. Most computers rely on a binary system, which uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms, and displaying information.