Types of Software Application software

IT (9626)

Theory Notes

Types of Software

Application software:

IT (9626)

Theory Notes

System software:

IT (9626)

Theory Notes

Utility software:

Disk compression utilities

Disk compression tools do the job of compressing or decompressing data on the drive, so that

there is more space for additional data to be stored.

Disk checkers and cleaners

These utilities check the hard drive for any damaged or unnecessary files and delete them for

efficient hard disk functioning. These tools are good for increasing the speed of a slow

computer.

Antivirus software

There are many different antivirus software available to purchase on the market and even some

free versions for download. They protect your computer against any viruses which may attempt

to get on your computer.

Backup utilities

As the name suggests, these data backup tools are used to copy all information and provide it,

when required, such as in case of disk failure or file corruption.

Operating systems:

To enable computer systems to function and to allow users to communicate with computer

systems, special software known as operating systems (OS) have been developed. The general

tasks for a typical operating system include:

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control the operation of the input, output and backing storage devices

supervise loading, running and storage of applications programs

deal with errors that occur in application programs

maintain security of the whole computer system

maintain a computer log (which details computer usage)

allow communication between the user and the computer system (user interface).

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