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Protected memory was only added to Macintosh computers with the release of the Mac OS X operating system. According to Andy Hertzfeld, the Macintosh used for the introduction demo on January 24, 1984, was a prototype with 512k RAM, even though the first model offered for sale implemented just 128k of non-expandable memory. This prototype was ...
The RAM limit in the Macintosh design was 4 MB of RAM and 4 MB of ROM with the remaining 8 MB addresses split between the SCC, IWM and VIA chips, because of the structure of the memory map. [9] [10] This was fixed by changing the memory map with the Macintosh II, allowing up to 8 MB of RAM, by shrinking ROM and I/O addresses to 1 MB each and ...
[101] macOS Catalina 10.15.2 added support for 6016x3384 output on 15-inch 2018 and newer models to run the Pro Display XDR at full resolution. [ 102 ] The 2019 MacBook Pro was the final model that could run macOS Mojave 10.14, which is the final macOS version that can run 32-bit applications such as Microsoft Office for Mac 2011 .
Although this had always been planned from the beginning, Steve Jobs maintained if the user desired more RAM than the Mac 128 provided, he should simply pay extra money for a Mac 512 rather than upgrade the computer himself. When the Mac 512 was released, Apple rebranded the original model as "Macintosh 128k" and modified the motherboard to ...
The 68020 has many improvements over the 68000, including an instruction cache, and was the first Mac processor to support a paged memory management unit, the Motorola 68851. The Macintosh LC configured the 68020 to use a 16-bit system bus with ASICs that limited RAM to 10 MB (as opposed to the 32-bit limit of 4 GB).
Mac OS X 10.4 Tiger: Mac OS X 10.5 Leopard: Latest release Mac OS X 10.6.8 Snow Leopard (If only 512 MB RAM are installed, then only 10.5.8) Mac OS X 10.7.5 Lion (If only 512 MB or 1 GB RAM are or is installed, then only 10.5.8 or 10.6.8 respectively) Mac OS X 10.7.5 Lion (If only 1 GB RAM is installed, then only 10.6.8) OS X 10.11 El Capitan ...
Currently only available in Mac OS X 10.6 "Snow Leopard", Mac OS X 10.7 "Lion", and OS X 10.8 "Mountain Lion" Added Support to Install ISO files from USB; 5.0.5033: March 14, 2013 Support for Windows 8 and Windows 8 Pro (64-bit only) Boot Camp support for Macs with a 3 TB hard drive; Drops support for 32-bit Windows 7
Mac 512K back panel. The Macintosh 512K is a personal computer that was designed, manufactured and sold by Apple Computer from September 1984 to April 1986. It is the first update to the original Macintosh 128K. It was virtually identical to the previous Macintosh, differing primarily in the amount of built-in random-access memory. The ...