| A | B |
| RAM | Random Access Memory. It's volatile! |
| RAM | The computer's working memory, also called random-accessed memory. |
| ROM | Read Only Memory. It's NOT volatile! |
| ROM | The permanent memory that is built in your computer. This is read only. |
| USB | Universal Serial Bus. |
| Motherboard | Main Circuit Board of Computer |
| Byte | 8 Bits |
| Bit | Zero or one in computer code. |
| CPU | Central Processing Unit. |
| CD-ROM | Storage Device - Read Only. |
| Function Keys | Keys used to give commands. |
| Modifier Keys | Shift, Control, ALT Keys. |
| Output Devices | Enable the computer to give you the results of the processed data. |
| Resolution | Number of pixels or dots that a monitor can display. |
| Virus | Computer program that causes damage to another computer. |
| Hardware | The physical components of the computer system. |
| Software | The programs or instructions that tell the computer what to do. |
| CPU | The brain of the computer or central processing unit. |
| Megabyte (MB) | Approximately a million bytes. (1,000,000 bytes, or 1,000 kilobytes) |
| Gigabyte (GB) | Approximately a billion bytes (1,000,000,000 bytes, or 1,000 megabytes). |
| Input Device | The hardware that is used to pass information into the computer. |
| Output Device | The hardware that receives and dislplays information coming from the computer. |
| Modem | The device that allows your computer to talk to other computers over a telephone line. |
| Monitor | A video or computer display device. |
| Printer | The hardware that provides printed output from the computer. |
| Hard Copy | A printed copy of computer output. |
| Compact Disc (CD) | A disc on which a laser has digitally recorded information such as audio, video, or computer data. |
| Hard Disk | A fixed, large-capacity magnetic storage medium for computer data. |
| Floppy Disk | A portable magnetic storage medium for computer data that allows users to randomly access information. |
| Graphical User Interface (GUI) | The use of graphical symbols instead of text commands to control common computer functions such as copying programs and disks. |
| Icon | A small picture or symbol representing a computer hardware function or component. |
| Kilobyte (KB) | Approximately 1000 bytes (exactly 1024) |