| A | B |
| Boot | to start up a computer |
| Bit | the smallest piece of information used by the computer. Derived from "binary digit". In computer language, either a one (1) or a zero (0). |
| Byte | a piece of computer information made up of eight bits |
| Control panel | a program that allows you to change settings in a program |
| DOS | acronym for Disk Operating System |
| Gig | a gigabyte = 1024 megabytes |
| Icon | a graphic symbol for an application, file or folder |
| K | short for kilobyte |
| Kilobyte | 1024 bytes. |
| MB | short for megabyte |
| Megabyte | 1024 kilobytes |
| Menu | a list of program commands listed by topic |
| Menu bar | the horizontal bar across the top of the screen that lists the menus |
| Multi tasking | running more than one application in memory at the same time |
| Operating system | the system software that controls the computer |
| Shut down | the command from the Special menu that shuts down the computer safely. |