- Utility software refers to system software designed to analyze, optimize and maintain a computer in good working conditions. Utility software usually focuses on how the computer system operates. Although operating systems typically include some built-in utilities, many stand-alone utility programs are available. Examples include
- Antivirus utility
- Screen Saver utility,
- File compression utility.
4.3 SOFTWARE NOTES
Completion requirements
Click on the above link to access this reading material. This module covers two units
- System software
- Application software
2. SYSTEM SOFTWARE
2.1. UTILITY SOFTWARE
Utility Software
Licensed under the Creative
Antivirus utility
A computer virus is a damaging program that affects a computer negatively by altering the way the computer works without the user's knowledge or permission. Once a virus is in a computer, it can spread throughout and damage your files and OS. Antivirus utilities are programs that scan for computer viruses and remove, disinfect and repair damaged files.
HOW DOES A VIRUS WORK?
A computer virus is a program or piece of code that operates by attaching itself to some other program or downloaded file. When this program starts, the virus code unintentionally runs, replicates itself, and infects other programs or documents on the PC. A computer virus spreads mainly via e-mail attachments, downloadable files from the Internet, or floppy disks. Virus infection can be prevented by installing (and maintaining) anti-virus software, among other strategies, some of which are outlined in this advice sheet.
A computer virus can seriously damage or completely destroy files or software on a computer. The result is that files may be lost permanently, programs may not function correctly, the overall performance of a computer may be slowed down or user data may be lost in case the virus erases the whole hard disk. The process involved in repairing the damage can be time-consuming and expensive