This document discusses different types of computers. It outlines computers for individual use, including desktop computers, laptop computers, tablet computers, handheld computers, work stations, and smartphones. Desktop computers are the most common and are too big to carry around. Laptops and notebooks are portable but larger than tablets. Tablets have touchscreens and are smaller than notebooks. The document also discusses computers for organizations, including mini computers, super computers, mainframe computers, and network servers which provide shared resources.