Adverts by processor(s)

MOS Technology's 6502 and Zilog's Z80 dominated the computer industry from the mid 1970s until the early 1980s - the former as it appeared in some of the biggest sellers of the era, like Commodore's VIC-20 and C64 (as the 6510), as well as Nintendo's NES and Famicom, whilst the latter appeared in not just Sinclair's ZX80, ZX81 and ZX Spectrum, but also pretty much every CP/M-based "pop up" business machine that was here one week and gone the next.

However, there were plenty of other processors around, including those from Intel, which had very much set the scene with the 8080, but which then somewhat dropped the ball until IBM chose its later 8088 for the 5150 PC in 1981.

This set the course for the eventual domination of Intel in the 16-bit and 32-bit eras from the latter half of the 80s - and for the next couple of decades at least - thanks to the Windows/Intel (Wintel) duopoly.

Note that some processors are grouped together for simplicity, for instance the Zilog Z80, Z80A and Z80B appear together, as do MOS Technology's 6502, 6502A and 6502B. More significant variants such as the 6512 and 6507- like the 6502 only different - have their own entries.

8-bit CPUs

• Hewlett-Packard Capricorn (3 adverts)
  16 bit address (64K memory max), proprietary HP CPU, with built-in advanced maths features. Address bus was 8 bit multiplexed

• Hitachi 6301/6309 (1 advert)
  16 bit address (64K memory max), version of Motorola's 6809

• Intel 8080 (18 adverts)
  16 bit address (64K memory max)

• Intel 8085 (8 adverts)
  16 bit address (64K memory max), A faster 5V version of 8080

• Intel 80C85 (1 advert)
  16 bit address (64K memory max), CMOS version of 8085

• MOS Technology 6502 (81 adverts)
  16 bit address (64K memory max)

• MOS Technology 6502 and Motorola 6809 (1 advert)

• MOS Technology 6502, Zilog Z80 and Motorola 6800 (1 advert)

• MOS Technology 6507 (3 adverts)
  13 bit address (8K memory max), modified 6502 with 7-bit data bus

• MOS Technology 6509 (2 adverts)
  20 bit address (1M memory max), extra memory accessed via bank switching

• MOS Technology 6510 (10 adverts)
  16 bit address (64K memory max), improved 6502

• MOS Technology 6512 (2 adverts)
  16 bit address (64K memory max), same as the 6502 but requires an external clock

• MOS Technology 7501 and MOS Technology 8501 (2 adverts)

• MOS Technology 8502 and Zilog Z80 (1 advert)

• Motorola 6800 (10 adverts)
  16 bit address (64K memory max)

• Motorola 6809 (12 adverts)
  16 bit address (64K memory max)

• National Semiconductor SC/MP "Scamp" (4 adverts)
  16 bit address (64K memory max)

• RCA CDP-1802 "COSMAC" (2 adverts)
  16 bit address (64K memory max), address bus was 8-bit multiplexed

• Sharp LH5801 (1 advert)
  16 bit address (64K memory max), a CMOS chip similar to the Z80

• Western Design Center 65SC12 (1 advert)
  16 bit address (64K memory max), improved CMOS version of the 6502

• Zilog Z80 (159 adverts)
  16 bit address (64K memory max), compatible with Intel 8080

• Zilog Z80 and MOS Technology 6502 (6 adverts)

16-bit CPUs

• Data General mN601G (1 advert)
  16 bit address (64K memory max)

• Intel 80186 (9 adverts)
  20 bit address (1M memory max)

• Intel 80186 and Intel 8086 (1 advert)

• Intel 80286 (5 adverts)
  24 bit address (16M memory max)

• Intel 8085 and Intel 8088 (1 advert)

• Intel 8086 (18 adverts)
  20 bit address (1M memory max)

• Intel 8086-2 (1 advert)
  20 bit address (1M memory max), faster version of the 8086

• Intel 8088 (24 adverts)
  20 bit address (1M memory max), modified version of 8086 with only 8-bit data bus

• Intel 8088 and Intel 80286 (1 advert)

• Intel 8088 and Intel 8085 (1 advert)

• Intel 8088 and Intel 8085 (1 advert)

• Intel 8088 and Intel 8086 (1 advert)

• Intel 8088 and Zilog Z80 (1 advert)

• Intel 80C86 (1 advert)
  20 bit address (1M memory max), CMOS version of 8086

• Intel 80C88 (2 adverts)
  20 bit address (1M memory max), CMOS version of 8088

• NEC PD780C-1 and NEC V20 (1 advert)

• NEC V20 (1 advert)
  20 bit address (1M memory max), 8 bit data bus, compatible with 8088

• NEC V30 (2 adverts)
  20 bit address (1M memory max), same as V20 but with 16-bit data bus

• Texas Instruments TMS9900 (3 adverts)
  16 bit address (64K memory max), world's first single-chip 16 bit CPU

• Western Digital LSI-11 (2 adverts)
  16 bit address (64K memory max), four-chip LSI version of the DEC PDP-11

• Western Digital WD16 (1 advert)
  16 bit address (64K memory max)

• Zilog Z80 and Intel 8086 (1 advert)

• Zilog Z80 and Intel 8088 (4 adverts)

• Zilog Z80 and Intel 8088 (1 advert)

• Zilog Z80 and Zilog Z8000 (1 advert)

• Zilog Z8000 (1 advert)
  16 bit address (64K memory max), evolution of Z80

32-bit CPUs

• Acorn RISC Machines ARM2 (2 adverts)
  26 bit address (64M memory max)

• Hewlett-Packard FOCUS (1 advert)
  32 bit address (4096M memory max), proprietary HP CPU, the first commercial 32-bit chip on the market

• Intel 80386 (4 adverts)
  32 bit address (4096M memory max)

• Intel 80486 (3 adverts)
  32 bit address (4096M memory max)

• Motorola 68000 (23 adverts)
  24 bit address (16M memory max), 16-bit data bus

• Motorola 68008 (2 adverts)
  20 bit address (1M memory max), 8 bit data bus

• Motorola 68020 (1 advert)
  32 bit address (4096M memory max)

• Motorola 68030 (1 advert)
  32 bit address (4096M memory max)

12-bit CPUs

• Intersil 6100 (1 advert)
  12 bit address (4K memory max), CMOS clone of DEC's PDP-8