Found 26 software entries in System beginning with: "M" from category: Beta

Mac OS 7.0a9 (May 1990)

Mac OS 7.0a9 (May 1990) (1990)
(Modified on 2023-01-07 18:27:35)

This was the may 1990 release of macintosh system software 7.0a9 (which most likely means 7.0 alpha 9). Along with an early/development version of the operating system, the disc included lots of developer tools and other special...

Mac OS X Public Beta

Mac OS X Public Beta (2000)
(Modified on 2023-01-07 18:27:56)

    The Mac OS X Public Beta (internally codenamed "Kodiak") was an early beta version of Apple Computer's Mac OS X operating system Cheetah. It was released to the public on September 13, 2000 for US$29.95. It...

Mac OS 8.0 Copland (Beta Builds)

Mac OS 8.0 Copland (Beta Builds) (1996)
(Modified on 2021-12-04 15:47:46)

Copland OS was supposed to be the turning point of classic Mac OS.  Starting from 1994, it was supposed to introduce true multitasking, protected memory.  Copland could have been the foundation of Mac OS X altough it was commonly being...

Mac OS 8.7 Pre-release (Sarah)

Mac OS 8.7 Pre-release (Sarah) (1999)
(Modified on 2023-01-07 18:28:02)

MacOS 8.7 is supposedly a cancelled MacOS 8.x update, that became MacOS 9 for PPC. As shown by Action Retro, it can be run on a PowerBook 540c that has a PPC upgrade inside, however, at least for him, the wallpaper becomes the...

Mac OS 9.2.x Pre-releases

Mac OS 9.2.x Pre-releases (2001)
(Modified on 2022-10-05 18:51:29)

These are the 5 pre-releases of Mac OS 9.2.x that I found recently. You need to use QEMU or real supported PowerPC Macs (such as the blue and white Power Mac G3) or this will not work. It is also recommended to boot into Mac OS 9.1 along with...

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