| A | B |
|---|
| Virus | Program designed to cause damage to computers |
| Worm | Virus that works its way through computers or computer files |
| Trojan Horse | Virus that disguises itself as a useful computer program |
| Bomb | Virus designed to activate at a particular time |
| Hoax | Program designed to make users think that their computer has a virus when it really does not |
| Hacker | A person who gains access to computer files without permission |
| Antivirus program | Computer program that detects viruses and repairs files |
| Commercial software | Software whose copyright is owned by the author/software publiseher |
| Copyright | Protection giving the owner the exclusive right to reproduce or distribute copies of his or her own work |
| Ethics | A set of moral principles or values |
| Freeware | Software that is given away free of charge, but whose author still retains all rights |
| Password | A safeguard for access to a computer or a computer program |
| Piracy | The illegal copying and distribution of software |
| Public Domain | Software that is not copyrighted and is free to copy and distributer |
| Shareware | Copyrighted software distributed free of charge on a trial basis with payment by the honor system |
