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Due to complaints about the rarity of the original II, [citation needed] it also accepts Macintosh IIx and Macintosh SE/30 ROM files. The precompiled versions available for download at Mini vMac's SourceForge project emulates a Macintosh Plus with 4 MiB of RAM. vMac and Mini vMac require a Macintosh Plus ROM file and
The Macintosh II was introduced at the AppleWorld 1987 conference in Los Angeles, [15] with low-volume initial shipments starting two months later. [16] Retailing for US $5,498, [17] the Macintosh II was the first modular Macintosh model, so called because it came in a horizontal desktop case like many IBM PC compatibles of the time. [18]
During the Macintosh II series' lifespan, they rose to become among the most powerful personal computers available. While the Macintosh II series itself was replaced by the Macintosh Centris and Quadra, the Macintosh LC and Performa families continued to use the II's 68030 technology long after the 68040 was introduced and the PowerBook continued to use the '030 into the Power Macintosh era.
The earliest Mac clones were based on emulators and reverse-engineered Macintosh ROMs. During Apple's short lived Mac OS 7 licensing program, authorized Mac clone makers were able to either purchase 100% compatible motherboards or build their own hardware using licensed Mac reference designs.
Note that most old programs can still be run using emulators, such as SheepShaver, vMac, or Basilisk II. For a list of current programs, see List of Mac software . Third-party databases include VersionTracker , MacUpdate and iUseThis .
The Macintosh Toolbox implements many of the high-level features of the Classic Mac OS, including a set of application programming interfaces for software development on the platform. The Toolbox consists of a number of "managers," software components such as QuickDraw , responsible for drawing onscreen graphics, and the Menu Manager, which ...
This bootloader was used in all Macintosh computers until mid-1998. [9] With the advent of the iMac series of Macintoshes, the firmware was updated. [10] The ROM was reduced in size to 1 MB, called BootROM, and the remainder of the ROM was moved to the file Mac OS ROM in the Mac OS System Folder, stored on the hard drive. [9]
A stock Mac 128K with the original 64K ROM is incompatible with either Apple's external 800 KB drive with the Hierarchical File System or Apple's Hard Disk 20. A Mac 128K that has been upgraded with the newer 128 KB ROM (called a Macintosh 128Ke) can use internal and external 800 KB drives with HFS, as well as the HD20.