Linux is a free, open-source version of UNIX that can run on Intel and PowerPC computers. Popular Linux distributions mentioned in the document include Red Hat Linux, SUSE Linux, Turbolinux, and Mac OS X. Red Hat Linux was assembled by Red Hat and was popular until being discontinued in 2004. SUSE Linux was originally based on SLS and Slackware Linux and is pronounced "zoo-zah" in German. Turbolinux included licensed copies of media codecs. Mac OS X is Apple's Unix-based graphical operating system that runs exclusively on Macintosh computers.

3. Linux
-A version of UNIX that is
available to users, free of charge.
-Can be used on Intel-based and
PowerPC computers.

4. Versions of Linux :
- Red Hat Linux, assembled by the
company Red Hat, was a
popular Linux based operating
system until its discontinuation in
2004.

5. Red Hat Linux 9's default
desktop

6. SuSE Linux
- SuSE was originally an acronym for
"Software und System Entwicklung"
(Software and System Development), a
German Unix consulting company founded
in 1992. In 1994, it released S.u.S.E. Linux
1.0, which was based on Softlanding Linux
System (SLS) and Slackware Linux. In
German, SuSE is pronounced "zoo-zah," but
is often pronounced as "soo-say" by English
speakers.

8. Turbolinux
• The Turbolinux distribution was created as
a rebranded Red Hat distribution by (then)
Pacific HiTech employee Scott Stone.
Scott was the lead release engineer
through version 3.6.
• Turbolinux is notable for including licensed
copies of
CyberLink PowerDVD and Windows
Media binary codecs

11. Mac OS X
formerly Mac OS X, is a series
of Unix-
basedgraphicalinterface operating
systems developed, marketed, and
sold byApple Inc. OS X (officially)
runs exclusively
on Macintosh computers and has
been pre-loaded on all Macs since

13. OS X is the tenth major version of Apple's
operating system for Macintosh
computers. Previous Macintosh operating
systems were named using Arabic
numerals, e.g.Mac OS 8 and Mac OS 9.
The letter X in OS X's name refers to the
number 10, aRoman numeral. It is
therefore correctly pronounced "ten"
(/ˈtɛn/) in this context. However, due to
the tenth version being the first to be
based on Unix origins, and a reason for
the Roman numeral to be used for the

14. Types and Functions of Application Software
1. Proprietary application software
- is a software that has been developed to
solve a particular or unique or distinct
computer requirements or problems.
1.1 Off-the-shelf application software
1.2 Customized package