You might be aware that Apple's current Mac operating system is based on UNIX...but the company's history with the platform goes back farther than you might realize.

Sources:
Macintosh IIx photo: http://www.vectronicscollections.org/...
Macworld, March 1988.
"Companies Report PC Sales Up Despite Stock Market Troubles", Rachel Parker. InfoWorld, October 17, 1988.
Cornell University computer lab photo, source unknown.
Univac computer photo, source unknown.
"Apple Brackets Unix, Ethernet", Patricia Keefe. Computerworld, March 2, 1987.
"Apple Keen on Unix Future", Alan J. Ryan. Computerworld, August 15, 1988.
Kmart Computer Centre photo, source unknown.
NIST building photo: https://mmwrcn.ece.wisc.edu/this-is-a...
"Posix is Government's Portability Choice", Scott Mace and Stuart J. Johnston. InfoWorld, September 5, 1988.
FIPS 151, Federal Register, Sepetmber 12, 1988.
"Apple to Support Posix Standard", Mitch Betts. Computerworld, August 8, 1988.
UNIX System Lab office photo: https://upload.wikimedia.org/wikipedi...
VT100 terminal photo: https://upload.wikimedia.org/wikipedi...
Macintosh factory video (part 2):    • Video  
"Apple Reveals Plans for Updated A/UX, PowerOpen Unix Development Alliance", Cate Corcoran. InfoWorld, November 4, 1991.
"Rivals IBM, Apple Team Up for Open Platform", Kristi Coale and Ed Scannell. InfoWorld, July 8, 1991.
AT&T UNIX PC photo: https://imgur.com/gallery/GE9Ezkt
AT&T System V books photo: http://img.stanleylieber.com/src/2096...
"Universities High on A/UX But Want More", Laurie Flynn. InfoWorld, March 7, 1988.
"A/UX Ships Following Lengthy Delay", Julie Pitta. Computerworld, February 15, 1988.
"Apple Breaks Into Unix Market With A/UX OS", Laurie Flynn and Carole Patton. InfoWorld, February 22, 1988.
"Developers Eager to Display Programs Run Under A/UX", Laurie Flynn. InfoWorld, February 22, 1988.
University of Michigan Computing News, January 2, 1989.
"Apple Hopes to Win Friends For A/UX", Cate Corcoran. InfoWorld, November 4, 1991.
"Apple Finally Gets Unix Right with A/UX 3.0", Don Crabb. InfoWorld, August 10, 1992.
"Lotus Promises 1-2-3 for Sun in Second Quarter", Ed Scannell. InfoWorld, January 22, 1990.
Computer Chronicles, April 21, 1987.
Windows 3.1 commercial:    • Windows 3.1 Commercial  
"Vendors Join NT Parade by Porting Unix Apps", Steve Moore. Computerworld, August 21, 1995.
Power Mac 7100 photo: https://upload.wikimedia.org/wikipedi...
"Macintosh Users Get Ready For Unix", James Daly. Computerworld, September 27, 1993.
MacUser, June, 1991.
Quadra 950 photo: https://www.flickr.com/photos/mac_use...

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