Utility programs are designed to do just
one or two tasks
Utility software interacts with
the computers hardware E.G.
the disk Drive
Utility programs are inbuilt in to the
Operating System
Utility Programs
File Compression
Disk Defragmentation
File Repair
Disk Copying
Disk Formatting
Disk Backup/Restore
Anti-Virus
Compression
Reducing the size of the file by performing an
algorithm on the original data
Lossless-The original file can be
re-created as no data is lost
Defragmentation Software
When a hard disk drive is new, files get
added onto the disk in order. Very much
like starting with a blank piece of paper
and adding to it
As files are deleted this leaves gaps
When new files are saved the files
fill the gaps and become
fragmented
Defragmentation software groups
fragmented files back together
Encryption Software
Encryption emans to scramble data in a way that it
is unreadable to anybody who doesn't have a key
to be able to unscramble this
Data is encrypted using a
key and then decrypted
using a key
Data is encrypted so that it
is unreadable if anyone is
to intercept it
Backups
Completed to ensure there is way of restoring
files/data/programs in case of computer failure
Copies of data and/or software are taken regularly
and usually stored in a difrent location
Ensures that if computers are stolen or
damaged in for e.g. a fire or a natural disaster
that data can be restored and a company do
not lose much money