| A | B |
|---|
| CPU | Brain of the computer |
| Flash Memory | Removable memory used in cell phones |
| GUI | Allows users to point and click on graphic icons |
| Hard Drive | Primary nonremovable storage |
| Hardware | Physical parts of a computer system |
| Motherboard | Main circuit board that contains the CPU, memory and expansion slots. |
| RAM | Computer's primary working memorty |
| Systems Unit | Holds the main, internal circuitry of a computer |
| Utility Program | Assist the user in maintaining and improving the operating system |
| Expansion Slot | Allows the connection of circuit boards with additional ports |
| Firewall | Protects your computer from unauthorized access |
| Microsoft | Maker of the Windows Operating System |
| Apple | Maker of the Mac OS (Operating System) |
| CD-ROM | Storage device that a computer can read from only |
| CD-RW | Storage device that the can computer can read and save to |
