Importance of operating system
1.
It moderates the relationship between the computer and
its peripherals
2.
It helps in the management of files,- copying,
deleting, moving of files from one storage location to the other.
3.
It encourages the memory for its efficient usage and
thus adding the speed of the computer.
4.
It manages the activities of the processor in terms of
job execution according to the priority of arrival ,of jobs
5.
It informs the user of nay hardware or software error
6.
It makes communication between the computer and the
user or the operator possible.
Types
of operating system
i.
Single user operating system
ii.
Multiple user operating system
Examples of Application Software
are:
·
Word Processor e.g. Microsoft word, word
perfect, Word star etc
·
Graphical/ desktop packages e.g. Microsoft
publisher, paintbrush, Corel draw, Ms Power point, PageMaker etc.
·
Database packages e.g. Dbase iii &iv etc
·
Spread sheet packages e.g. Ms Excel, etc
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