Utility Software

utility software

Software designed to help maintain a computer system.

operating system

Software designed to run a computer system.

encryption software

This software scrambles (encrypts) data to stop third parties (other people) from accessing it.

defragmentation

The process of putting broken up files back together on a hard disk.

data compression

The process of reducing the size of files so they take up less disk space.

full backup

When a copy is made of every file on a computer system.

incremental backup

When we only copy files created or changed since the last backup was done.

hard disk

Storage device that over time becomes more and more fragmented.

lossy compression

This type of compression works by permanently removing bits of data from a file to reduce its size. There is a loss in quality.

lossless compression

This type of compression allows the original data to be perfectly reconstructed from the compressed data. There is no loss in quality.

backup

A copy of a computer system's files.

fragmented

A hard disk becomes this when small gaps begin to appear between files.

backup utility

Software than enables the scheduling of regular backups.

compression software

Software that reduces the size of files so that they take up less disk space.

encrypted

When data has been scrambled it is said to be ?

decrypted

When data is turned from cipher text to plain text it is said to have been ?

key

This is required to turn cipher text back to plain text.