| A | B |
| Hardware | Physical components of the computer system. |
| Software | Program that gives the computer instructions on what to do. |
| CPU | Central Processing Unit, Brain of the computer. |
| ROM | Read Only Memory or permanent memory/ |
| Megabyte | Approximately a million bytes |
| Gigabyte | Approximately a billion bytes or (1,000 megabytes) |
| Icon | A small picure or symbol representing a computer program or hardware function |
| WWW | World Wide Web |