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The increased memory turned the Macintosh into a more business-capable computer and gained the ability to run more software. It is the earliest Macintosh model that can be used as an AppleShare server and, with a bridge Mac, communicate with modern devices.
Under System 7.0 up to System 7.5.5 the SE/30 can use up to 128 MB of RAM. Alternatively, replacing the ROM SIMM with one from a Mac IIsi or Mac IIfx makes the SE/30 "32-bit clean" and thereby enables use of up to 128 MB RAM and System 7.5 through OS 7.6.1. A standard SE/30 can run up to System 7.5.5, [3] since Mac OS 7.6 requires a "32-bit ...
Apple did not offer RAM upgrades. Unlike the Apple II, no source code listings of the Macintosh system ROMs were offered. The RAM in the Macintosh consists of sixteen 64k×1 DRAMs. The 68000 and video controller take turns accessing DRAM every four CPU cycles during display of the frame buffer, while the 68000 has unrestricted access to DRAM ...
The M2 Pro and M2 Max have a 19-core and 38-core GPU, and a 256-bit and 512-bit LPDDR5 memory bus supporting 200 and 400 GB/s bandwidth respectively. Both chips were first introduced in the MacBook Pro in January 2023. [23] The M2 Ultra is a processor combining two M2 Max dies in one package. It is available in the highest-end variants of the ...
Connectix products MAXIMA, RAM Doubler, and Virtual allowed accessing and reallocating the 6 MB addresses allocated to the NuBus cards for a total of 14 MB, minus 1 MB per slot occupied. [11] [12] Because memory was a scarce resource, the authors of Classic Mac OS decided to take advantage of the unused byte in each address.
All models use Apple-designed M series systems on a chip. The first MacBook Pro with Apple silicon, based on the Apple M1, was released in November 2020. The 14-inch and 16-inch MacBook Pros were released on October 26, 2021. Powered by either M1 Pro or M1 Max chips, they are the first to be available only with an Apple silicon system on a chip ...