| A | B |
|---|
| worm | destructive program that bores it way through computer files |
| virus | computer program designed to cause damage to computer files |
| trojan horse | virus that is disguised as a useful piece of software |
| shareware | copyrighted software distributed free of charge on trial basis with payment by honor system |
| public domain | software not copyrighted and free to copy and distribute |
| piracy | illegal copying and distribution of software |
| password | safeguard for access to a computer |
| hoax | program intended to scare users into thinking they have a virus |
| hacker | person who secretly gains access to computers without permission |
| freeware | software that is given away free but whose author still retains all rights |
| ethics | a set of mora principles or values |
| copyright | protection giving the owner the exclusive right to reproduce or distribute copies of his own work |
| commerical software | software whose copyright is owned by the author/software publisher |
| bomb | a destructive computer code or virus designed to activate at a specific time |
| antivirus program | a computer program that detects viruses and repairs files |
