Operating Systems and Utility Programs
System Software
- Consists of the programs that control or maintain the operations of the computer and its devices.
Operating Systems
- Is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources.
Utility Programs
-Is a type of system software that allows a user to perform maintenance-type tasks, usually related to managing a computer, its devices, or its program.
a) File Manager
- Is a utility that performs functions related to file management.
b) Disk Cleanup
- Utility searches for and removes unnecessary files.
c) Anti-virus Program
Virus- A potentially damaging computer program that effects, or infects, a computer negatively by altering the way the computer works without the user's knowledge or permission.
Example of Viruses:
- Trojan horse- hides within or looks like a legitimate program such as screen saver.
- Worm- copies itself repeatedly, for example, in memory or over a network, using up system resources and possibly shutting the system down.
d) Spyware and Adware Removers
- Spyware remover is a porgram that detects and deletes spyware, and similar programs.
-Adware remover is a program that detects and deletes adware.
e) Internet Filters
- Programs that remove or block certain items from being displayed.
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