utility software

Question 1

why does a computer use utility software .

Answer 1

• performs house keeping tasks ( cleaning and maintained which keep system running efficiently securely and in good condition )
• Improve the performance of the computer and help it run efficiently

Question 2

what is Compression

Answer 2

• where the file size is being reduced
  Lossy or lossless

Question 3

Explain how a hard disc could have become fragmented

Answer 3

Files have been saved and then deleted over time (1) leaving spaces
- New files are created (1) which may be bigger than the spaces left by the
- deleted files (1)
- The files are split up (1

Question 4

How does defrag work

Answer 4

Files on the hard disc drive are moved (1)
Empty spaces collected together (1)
Files are moved to be stored together (1)
Fewer disc accesses are needed (1)

Question 5

Explain how defragmentation will change how the files and free space are arranged

Answer 5

• Collate free space together
• Collate file fragments together/contiguously
• Files will be stored consecutively

Question 6

Explain why a computer can access the files faster afterwards

Answer 6

Hard disc read/write head does not have to physically move as far to get the next part of
the file.
Less physical movement saves time.
Multiple locations do not need accessing // fewer individual accesses.