| A | B |
|---|
| CPU | The brain of the computer or central processing unit. |
| Gigabyte | Approximately a billion bytes (or 1,000 megabytes). |
| Graphical User Interface | The use of graphical symbols instead of text commands to control common computer functions such as copying programs and disks. |
| Hard Disk | A fixed, large-capacity magnetic storage medium for computer data. |
| Hardware | The physical components of the computer system. |
| Input Device | The hardware that is used to pass information into the computer. |
| Megabyte | Approximately a million bytes. |
| Modem | The device that allows your computer to talk to other computers over a telephone line. |
| Output Device | The hardware that receives and dislplays information coming from the computer. |
| RAM | The computer's working memory, sometimes called random-accessed memory. |
| ROM | The permanent memory that is built in your computer. This is read only. |
| Bit | The smallest unit of measure for computer data. 1 or 0, on or off switches |
| Byte | a group of eight bits |
| Intranet | An private version of the internet |
| Keyboard | " A hardware device consisting of a number of mechanical buttons (keys) which the user presses to input |
| Hard drive | The hard disk is a round, metal platter in the hard drive of the computer; it stores large amounts of information. |
| Virus | A programs that adds to itself to "infect" another program or document and then creates copies of itself to infect other computers |
| USB | Universal Serial Bus, a connection for keyboards, mice, modems, printers, and scanners |
| Microprocessor | An integrated circuit that contains the entire central processing unit of a computer on a single chip. |
| Motherboard | The main board of a computer, usually containing the circuitry for the central processing unit, keyboard, and monitor and often having slots for accepting additional circuitry. |
| Power Supply | A source of electricity for a device, which converts, regulates, and transmits the external power for the device |
| Operating System | The software that allows computer users to run applications with the hardware of a specific system. |
| LAN | Local Area Network |
| Firewall | A computer or program that connects a local network to the Internet and, for security reasons lets only certain kinds of information in and out |
| GUI | Graphical User Interface that allows users to click on 'icons' to interface with the programming |
| Firewire | An external 'bus' that can connect up to 63 external devices |
| ALU: | Arithmetic Logic Unit, which performs computations and logical operations |
| SCSI: | SCSI: |
| Port: | an interface with a peripheral device; connects to or from a computer |
