A computer device is made up of various elements which help in its effective functioning and processing. There are five basic components of the computer which help in making this processing of data easier and convenient. In this article, we shall discuss the basic computer components along with their functions. Also, for candidates preparing Computer Knowledge for upcoming competitive exams, sample questions based on this concept have been given further below in this article. By definition, components of a computer system are the primary elements which make the functioning of an electronic device smooth and faster.