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OS Versions



Mac OS Versions

OS X 10.8.2 "Mountain Lion"

Introduced:25/7/2012 
Minimum hardware:Intel Core 2 Duo, 2 GB RAM, 8 GB HD
Minimum software:Upgrade available only for 10.6.8 or above
Availability:Upgrade  via Mac App Store (download only, £13.99)
Introduced
Notes:Not compatible with AppleWorks

OS X 10.7 "Lion"

Introduced20/7/2011
Minimum hardware:Intel 64, 2 GB RAM, 7 GB HD
Minimum software:Upgrade available only for 10.6.8 or above
Availability:Mac App Store, USB Flash drive available on second hand market only
Notes:Not compatible with AppleWorks; iCloud introduced; Mac App Store

OS X 10.6.8 "Snow Leopard"

Introduced8/6/2009
Minimum hardware:Intel, 1 GB RAM (2GB recommended)
Availability:DVD box sets
Notes:
  1. Last version to support Rosetta
  2. From 10.6.6 Mac App Store is build in, hence, this is the best upgrade route for "Tiger" users wishing to upgrade to 10.8.

OS X 10.5.8 "Leopard"

Introduced26 /10/2007
Minimum hardware:Intel or PPC, 1 GB RAM (2GB recommended)
Availability:DVD box sets
Notes:
  1. Last version supporting PPC
  2. Can only be upgraded directly to 10.6.8


 OS versionNicknameDatesCPUMin RAMMin DiscDistribution
10.4Tiger29/4/2005PPC, Intel*256 MB3 GB DVD, CD
10.3Panther24/10/2004PPC G3-G5256 MB1.5 GB CD
 10.2Jaguar 23/8/2002PPC G3-G5256 MB
CD
10.1Puma25/9/2001PPC 128 MB 1.5 GBCD
10.0Cheetah 24/3/2001 PPC G3-G4128 MB800 MB  
1.0 - 9.2.2Classic1984-2001PPC G3

 Free download

* First Intel iMac & iBook released in January 2006, PPC phased out in August
Classic supported up to 10.5
Rosetta supported up to 10.6
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