What is a virus and its diseases?

Answer 1

There are three different types of viruses. The first one is Macro Viruses. Macro Viruses use to infect and spread to other files viewed by that software. For example Word and Excel have macros and macro viruses can spread by exploiting these commands. The second type of virus is called Worms. Worms duplicate themselves and use communications such as email to spread. They can look at your email address book and send themselves to users in your address book. The third type of a virus is called Trojan. Trojan Horses are programs that say they perform a particular function but in fact do something different, for real they could infect your computer with a virus or erase your files. Viruses can be stopped by activating an anti-virus program, this allows you to scan all of the files programs and everything else on your computer for viruses, and if it finds some then they will be deleted.

Answer 2

Worm Viruses - Copy themselves from computer to computer Trojon - Look like they are helpful to your computer, but are really not Macro virus - sent by E-mail This is a very simple answer, i know :)

Answer 3

A virus is a tiny piece of nucleic acid (DNA or RNA) enclosed in protein and sometimes lipids. It can only reproduce by entering a living cell and taking over its metabolism, as it has no metabolism of its own.

Probably 99% of viruses are harmless and cause no disease. They may even be an essential part of evolution, by allowing exchange of genes between species. The disease causing viruses cause a wide range of diseases, from the mild common cold & flu to deadly smallpox & ebola.

Answer 4

There are two main types of viruses: DNA viruses or RNA viruses but not both DNA and RNA.