| A | B |
|---|
| system unit | the main part of a PC containing components needed to process information |
| motherboard | main circuit board inside the PC |
| CPU | The "brains" of the computer |
| Fetch | receives input |
| Decode | interprets instructions |
| Execute | carries out instructions |
| RAM | Temporary memory |
| ROM | Permanent instructions placed on a chip |
| BIOS | Program stored on the ROM chip that is reponsible for booting (starting) the computer |
| volatile | A constant charge (of electricity) is required to hold data |
| nonvolatile | Even when power is off, data is not lost |
| expansion slot | open allowing teh isnertion of an expansion board |
| Network Interface Board | allows for communication between computers and a network |
| Modem board | Enables computer to communicate via telephone lines |
| Bay | A place where a device like a new hard drive can be installed |
| expansion board | a circuit board that can be installed inside a system unit to extend the uses of your computer |
| Bit | 0 or 1 |
| Byte | 8 bits |
| Terrabyte (TB) | One million MB |
| Megabyte (MB) | One million bytes |
