This document provides an introduction to computers by defining what a computer is, listing the types and components of computers, describing basic software and operating systems, and how to turn a computer on and off and use a mouse. A computer processes input data based on instructions from software to produce output. Types include desktops, laptops, notebooks, PDAs and tablets. Components are the CPU, drives, RAM, ports, printer, monitor and scanners. Software includes games, documents and multimedia. Operating systems run basic computer operations and come pre-installed. Users turn computers on by pressing the power button and off through menus or keyboard shortcuts. Mice are used through left and right clicking.

1. Introduction to Computers