There are two categories of computer software:
system software and application software.
System software consists of the programs that control the
operations of a computer and its devices. Two types of system software are the
operating system and utility programs.
An operating system (OS) coordinates all
activities among hardware devices and contains instructions that allow you to
run application software.
A utility program performs specific tasks, usually
related to managing a computer, its devices, or its programs. You interact with
software through its user interface.
Application software consists of programs that perform specific tasks
for users. Popular application software includes word processing software,
spreadsheet software, database software, and presentation graphics software.
Application software can be
·
Packaged software (copyrighted software that meets
the needs of a variety of users),
·
In-house/Custom software (tailor-made software
developed at a user’s request),
·
Freeware (copyrighted software provided at no
cost),
·
Public-domain software (software donated for
public use with no copyright restrictions), or
·
Shareware (copyrighted software distributed free
for a trial period).
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