Computer virus is a harmful computer software program that are being written purposely to enter a computer without the user's consent or knowledge. It has the ability to recreate itself, hence continuing to spread into the booting sector of the computer. Some virus do little but recreate, while others can cause severe damage or adversely affect the program and performance of the system. A virus should never be assumed harmless or safe and left on a system. Now let's take a look at the different types of computer virus.
