Whats the difference between a Trojan Horse a Worm and a Virus?
A virus in the human body is an organism that replicates (makes copied of) itself and overwhelms the body’s own defenses making it sick. Human borne viruses can spread in several ways from person-to-person. Depending on the type of virus, catching it could be as simple as breathing the same air as an infected person. It might require direct contact, or it might require an even more direct transfer of, say, blood. The term “virus” when applied to computers sounds very similar. A computer virus: • is a program – really, that’s all any of this is. A virus is just a computer program. It’s written by some individual or individuals, presumably with the intent of spreading and causing grief. • makes the infected computer “sick” – in the computer sense, “sick” can mean poor performance, crashes, lost files and data, or more. • replicates itself – just like you can copy a file from one disk to another and have copies on both disks, a computer virus is in part defined by its ability to make copi
