Mac OS 7

Mac OS 7
Version of Mac OS
Mac System 7.svg
Mac OS 7.1 desktop.png
CodenameBig Bang (System 7.0), Cube-E (System 7.1), Capone (System 7.5), Unity (System 7.5.3), Harmony (Mac OS 7.6), Ides of Buster (Mac OS 7.6.1)
Preliminary name
Architecture68k, PPC[a]
Latest build
Release date1991-05-13
Support end2001-05
Mac System Software 6.x
Replaced by
Mac OS 8

System 7 (also referred to as Mac OS 7) is an operating system by Apple, released for the 68k and PowerPC Macintosh platform on 13 May 1991. This version is a revolutionary update for Mac OS and was the first version to support the PowerPC architecture. It also overhauled the interface to make better usage of color displays, although support for monochrome ones was still available for older computers.

With Mac OS 7.6, released on 7 January 1997, System 7 was renamed to Mac OS 7.

List of known builds[edit | edit source]

7.0 (Beta)[edit | edit source]

7.0[edit | edit source]

7.1 (Beta)[edit | edit source]

7.1[edit | edit source]

7.5 (Beta)[edit | edit source]

7.5[edit | edit source]

7.6 (Beta)[edit | edit source]

7.6[edit | edit source]

Notes[edit | edit source]

  1. Since Mac OS 7.1.2.