System Threats in Operating System:
Definition and Explanation:
Most operating systems provide a means for processing to offspring other processes. With an environment like that it becomes easy for operating-system resources and user file to be misused.
Worms and viruses are the most common methods for achieving misuse.
Worms:
A worm is a process that uses the Spawn (or offspring) mechanism to strike system performance. The way it works is the worm spawns copies of it by using system resources. It may even lock out system for all other processes. On a network system, worms are usually strong, since they multiply and eventually shut down the entire network.
2. Viruses:
Another common computer attack is called a virus. Viruses are designed to spread into programs that can cause disorder in a system similarly like worms. Viruses can also modify or destroy files. A worm is structured in a complete form like separate self-program, while a virus is a portion of embedded code that begins in a legitimate program. Viruses can attack a user seriously and can become a big problem especially to microcomputer users.
The most common way of receiving a virus is the downloading programs, downloading files from Internet or exchanging floppy disks that contain a virus infection.
Viruses can be avoided by using antivirus software that automatically starts every time the PC is turned on.
