Definition of Virus (computing)

One of the first symptoms that we have a virus is that the operating system starts to get errors, at this point it would be a good idea to let our antivirus do a deep scan of our PC. Operating systems like windows xp are especially vulnerable, due to the lack of support from Microsoft.

Computer viruses are aptly named, as they emulate quite well what a virus does in the human body: first infect it and then kill it or make it chronically ill. This in computing it would be translated as: first, infect the machine and then render it completely unusable, causing it not to load the operating system or causing it to go slow and be very difficult to handle.

A computer virus is actually a program that little by little makes changes in vital systems of the operating system until it has complete control of the computer. computer. There are cases in which when a virus takes control of the computer, the virus itself asks for amounts of money to the person who owns the infected computer to release the valuable files from, for example, a business.

The solution It is an antivirus, this solution is sometimes a problem especially when our machine is a bit old and we see that after installing the antivirus the computer is a little slow. Before paying for an antivirus solution it is advisable to try a demo of the program and thus see how our system will respond.

There is some confusion regarding viruses and worms, the latter are intended to replicate themselves and send themselves through Internet to infect other computers on the network. The worms were in fact the reason of the creation of the firewalls.

Doing a bit of history of viruses, the first one was created in 1972, it sent a message on the screen at certain intervals of time saying "I'm a creeper, catch me if you can." The answer was the first antivirus called "cutter" from English reaper. The term virus would be adopted back in 1984, although the first virus of all those that have existed, was developed much earlier by four programmers from Bell laboratories. They developed a game called Core War, the game consisted of filling the RAM on the contrary in the shortest possible time, with which the opposite computer was totally useless and had to be restarted.

A virus spreads when the Username runs a program and the virus is contained in this program. The basic function of a virus is to infect, destroy and spread, not always in this order. Some people may believe that having two antivirus will be safer but with two antivirus on the system they will only make the system slow down to limits where our machine is practically useless for to work.