2. Mac OS
 series of graphical user interface-based operating
systems
 developed by Apple Inc.
 first introduced in January 24, 1984 with the original
Macintosh,
 usually referred to simply as the System software.

3.  has been pre-installed on almost every Macintosh
computer sold.
 The operating system is also sold separately on the
Mac App Store for $29.99.
 also sold on a USB flash drive for $69.00. (Mac OS X
Lion only.)
 The original Macintosh system software was partially
based on the Lisa OS,
 released by Apple for the Lisa computer in 1983
 it also used concepts from
 Xerox PARC
 Xerox Alto

4. What are the advantages and
disadvantages of Mac OS?
Advantages
Disadvantages
 Security
 Price
 Reliability
 Ease of Use
 Gaming
 Integration With
Apple and Other
Products  Fewer Software Options
 Mac OS Can Run
Windows at the Same
Time

6. Mac OS 9
 the final major release of Apple's "Classic" Mac OS.
 Introduced on October 23, 1999,
 "The Best Internet Operating System Ever,"[
 highlighting Sherlock 2's Internet search capabilities,
 integration with Apple's free online services known
as iTools
 improved Open Transport networking.

7.  lacks protected memory and full pre-emptive
multitasking,
 lasting improvements include the introduction of an
automated Software Update engine and support
for multiple users.
 discontinued development of Mac OS 9 in 2002.
 At the 2002 World Wide Developers Conference,
Steve Jobs began his keynote address by staging a
mock funeral for OS 9.

8. FEATURES
 Apple billed Mac OS 9 as including "50 New Features"
and heavily marketed its Sherlock 2 software,
 which introduced a 'channels' feature for searching
different online resources and introduced
a QuickTime-like metallic appearance.
 Mac OS 9 also featured integrated support for Apple’s
suite of Internet services known as iTools (later re-
branded as
 .Mac, then MobileMe, which is now known as iCloud)
and included improved TCP/IP functionality
with Open Transport 2.5.

9. Other features new to Mac
OS 9 include:
 Integrated support for multiple user accounts without
using At Ease.
 Support for voice login through VoicePrint passwords.
 Keychain, a feature allowing users to save passwords
and textual data encrypted in protected keychains.
 A Software Update control panel for automatic
download and installation of Apple system software
updates.

10.  A redesigned Sound control panel and support
for USB audio.
 Speakable Items 2.0, also known as PlainTalk,
featuring improved speech synthesis and recognition
along with AppleScript integration.[5]
 Improved font management through FontSync.
 Remote Access Personal Server 3.5, including support
for TCP/IP clients over Point-to-Point Protocol (PPP).

12. What is MAC OS X?
 is a series of Unix-based operating
systems and graphical user interfaces developed,
marketed, and sold by Apple Inc.
 X is the Roman numeral for 10 and is a prominent part
of its brand identity, is a Unix-based graphical
operating system.
 the tenth major version of Apple's operating system
for Macintosh computers.

13. Advantages and Disadvantages
of MAC OS X
 Advantages  Disadvantages:
 Easy to use  Small software base compared
to Windows(with out useing
 Virus free bootcamp/parallels)
 With boot camp you can  Not nearly as customizable
run XP or Vista on your  Missing some features that
machine, are pretty basic with
Windows(no page up/down
 with Parallels you can key, no real backspace key,
run windows programs and you have to use the
in OS X control key to right click)

14.  Mac OS X Version InformationVersionCodenameDate
AnnouncedRelease DateMost Recent
Version
Rhapsody Developer
ReleaseGrail1Z4 / Titan1
UAugust 31, 1997May 14, 1998Mac OS X Server 1.0HeraMarch 16, 19991.2v3
(October 27, 2000)Public BetaKodiakSeptember 13, 200010.0
CheetahMarch 24, 200110.0.4 (June 22, 2001)10.1PumaJuly 18,
2001[69]September 25, 200110.1.5 (June 6, 2002)10.2JaguarMay 6,
2002[70]August 24, 200210.2.8 (October 3, 2003)10.3PantherJune 23,
2003[71]October 24, 200310.3.9 (April 15, 2005)10.4TigerMay 4,
2004[72]April 29, 200510.4.11 (November 14, 2007)10.5LeopardJune 26,
2006[73]October 26, 200710.5.8 (August 5, 2009)10.6Snow LeopardJune
9, 2008[74]August 28, 200910.6.8 (June 23, 2011)