| A | B |
|---|
| Power Supply | Changes normal household electricity into electricity that a computer can use. |
| Hard Drive | The primary device that a computer uses to store information |
| Floppy Drive | Stores and retrieves information on a floppy disk |
| CD-ROM Drive | Reads information stored on a compact disk |
| Expansion Card | The card lets you add features to a computer. It gives computers the ability to record and play sound for example. |
| Expansion Slot | Is a socket on the motherboard that lets you plug in an expansion card. Like video, sound or network cards. |
| Motherboard | Main circuit board of a computer. All electrical components plug into the motherboard. The motherboard computer chips and circuits that route and process information. |
| Random Acess Memory | Stores information temporarily inside the computer. The information is lost when the computer is shut down. |
| Central Processing Unit (CPU) | The CPU is the main chip in the computer that processes instructions, performs calculations and manages the flow of information through the computer system. |
| Ribbon Cable | Cables that transfer information through the bus to a specific piece of hardware on the computer like the CD-ROM and floppy drive. |
| Port | A place at the back of the computer plug in the external devices. |
| Bus | A bus is the electronic pathway in a computer that carries information between devices. |
| Input Device | lets you communicate with a computer. yOU can use input devices to enter information and issue commands. Examples:keyboard, mouse, joystick. |
| Output Device | lets a computer communicate with you. These devices display information on a screen, create printed copies or generate sound. Examples:monitor, printer. |
| Storage Device | holds information. The computer uses information stored on these devices to perform tasks. Examples:hard drive, tape drive, floppy disk, and cd rom. |
