| A | B |
|---|
| Backup | A copy of software/data stored on discs/tape |
| Bug | An error in a program which prevents a computer carrying out its task |
| Chip | A tiny slice of silicon covered with millions of electronic circuits |
| Database | A collection of information stored in files |
| Format | To prepare a disk so that information can be written to it |
| Hacker | A person who gains access to a computer system illegally |
| Hard copy | Printed computer output, usually on paper |
| Input | Data that goes into a computer |
| Internet (or the Net) | A computer network of millions of linked computers |
| Memory | The part of a computer that stores data and program instructions |
| Modem | A device which converts data so it can be carried down a phone line |
| Network | A number of computers linked together so they can swap data etc. |
| Read-only memory (ROM) | Permanent memory that stores data even when a computer is turned off |
| Software | Programs and data that can be run on a computer |
| Virus | A program which is written deliberately to damage/destroy data |
| Hardware | Computer equipment that you can touch |
| ISDN | A type of high speed phone line which can transmit data between computers very quickly |
| Icon | A picture you can click on to make your computer do something |
| Cursor | Flashing symbol/pointer on the screen showing where the next character/number will appear |
| E-mail (Electronic mail) | A way of sending messages between computers |
