Mac OS

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Mac OS,

is a series of GUI based operating systems developed, marketed and sold by Apple Inc. for their Macintosh line of computer systems since 1984, with its range of processors from 68000, PowerPC, x86 and x86-64 [1]. Mac OS X, released in 2002, developed from Mac OS classic family, and NeXTSTEP, was UNIX-based.

GUI Screenshots

Sigma

Macintosh Sigma Chess 6.2 with HIARCS [2]

XBoard

XBoard port with native Quarz interface, so that X11/XQuartz is no longer needed [3] [4]

Engines

Forum Posts

2010 …

2015 …

2020 …

References

  1. Apple’s transition to Intel processors
  2. Macintosh Chess: Sigma Chess HIARCS Chess Software Program
  3. OSX Xboard 4.7.2 .app by Joshua Pettus, CCC, October 16, 2013
  4. XBoard native Mac App by Harm Geert Muller, Hiarcs Forum, December 18, 2013
  5. Xcode from Wikipedia

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