Part one of term paper
The computer virus is something that has been around almost as long as the Personal Computer (PC) and certainly since the advent of the affordable home computer, but what exactly is a virus? And how does it affect your PC? Is there any way to prevent your hard drive becoming infected and just where do they come from anyway? A virus is compu ...

Part two of term paper
... was a rise from 54% in 1994. The cost of each attack was estimated at $13, 000. The NSCA (National Computer Security Association) reported in January of 1997 that 200 macro viruses had been discovered. Six months later the amount of macro viruses had risen by over 300%. At this stage it is estimated that 90% of all companies have at least one macro virus resident somewhere in their computer systems. Types of Viruses Under the main heading of viruses are three types of harmful compu ...