How the Apple II, the IBM PC, and a generation of clones decided the shape of computing for forty years. The architecture was destiny: an open bus, a reverse-engineered BIOS, and a non-exclusive software license handed the future to Microsoft and Intel rather than to IBM.
Apple
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The Personal Computer Wars -
The Story of Mac OS: From Cooperative Multitasking to Apple Silicon Forty years of the Macintosh operating system, from the memory-protection-free original of 1984, through the Copland death march and the NeXT acquisition that brought Steve Jobs back, to the BSD-and-Mach foundation of Mac OS X and the three processor transitions that ended with Apple Silicon.