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The 360 had 24-bit addressing, for a maximum of 16 megabytes. The 6502 in the Apple could address 64k of RAM. Any class of problem requiring more memory would
by chasil 2y ago
The 360 had 24-bit addressing, for a maximum of 16 megabytes.
The 6502 in the Apple could address 64k of RAM. Any class of problem requiring more memory would need a real machine.
As far as a personal machine with comparable capability, RISC brought that to the market with the first MIPS R2000 in 1985.
https://en.wikipedia.org/wiki/MIPS_architecture https://en.wikipedia.org/wiki/MIPS_architecture
- spc476 2y agoThe Motorola 68000, introduced in 1979, had 24 address lines. The Intel 80286, introduced in 1982, also had 24 address lines.
- chasil 2y agoWell, the VAX was there before any of these, but I wouldn't call that a "personal machine." I suppose the argument could be made that the 68000 was first, as both it and MIPS ended up in gaming consoles (Sega Genesis vs. Sony PS2 and Nintendo 64). However, MIPS eventually scaled to 64-bit, was well-known and heavily exploited in supercomputing applications, and was used to produce the film Jurassic Park. The 68000 had a far dimmer future. Yes, the x86 line did supplant them all, but only with AMD's help. Had Itanium been Intel's final answer, MIPS might be much stronger today.