This is a list of home computers by category where the main category is the CPU wordlength (8 or 16 bits) and the subcategory is the specific CPU used in each machine. For an uncategorized list, see the list of home computers article, which gives an alphabetic list sorted by the computers' name.

Home computers using 8-bit processors

MOS Technology 6502-based

• Acorn Computers Ltd
  • Acorn Atom
  • Acorn Electron
  • BBC Micro (plus an optional, faster, 6502 in external coprocessor module)
  • BBC Master (65C02)

• Apple Computer
  • Apple I
  • Apple II, II+ (incl Bell & Howell), IIe
  • Apple IIe Enhanced, IIe Platinum (65C02)
  • Apple IIc, IIc+ (65C02)
  • Apple III, III+ (Synertek 6502A)

• Atari
  • Atari 400 & 800
  • Atari 600XL, 800XL, 1200XL, 65XE, 130XE, XEGS (6502C)

• Commodore International
  • PET/CBM
  • VIC-20
  • CBM-II, aka B range (6509 )
  • Commodore 64, SX-64 (6510)
  • C64C (6510A)
  • C16 and Plus/4 (7501)
  • C128, 128D (8502)

• Franklin Computer Corp.
  • Franklin ACE 100 (clone of the Apple II)
  • Franklin ACE 1000 (clone of the Apple IIe)
  • Franklin ACE 1200 (6502 as well as a Z80)
  • Franklin ACE 500 (65C02)
  • Franklin ACE 2000 , 2100, 2200 (clones of Apple IIe/IIc) (65SC02)
• Oric Int'l /Tangerine
  • Oric-1 (6502A)
  • Oric Atmos (6502A)

Zilog Z80 and clones

• Amstrad
  • Amstrad CPC 464, 664, 6128
  • Amstrad PCW 8256, 8512, 9512

• Sinclair, Timex-Sinclair
  • Sinclair ZX80 (Z80 clone: NEC 780C-1)
  • Sinclair ZX81
  • Sinclair ZX Spectrum 16/48K, Spectrum+, +128, +2 (Amstrad) and +3 (Amstrad)
  • Timex Sinclair 1000 (U.S. version of ZX81)
  • Timex Sinclair 1500 (U.S. improved ZX81)
  • Timex Computers 2048 (slightly improved ZX Spectrum)
  • Timex Sinclair 2068 (U.S. improved ZX Spectrum)

• Tandy/Radio Shack
  • TRS-80 Model I, II, III, IV, 4D, 4P

• Others:
  • ABC80
  • Aster CT-80 (TRS-80 and CP/M compatible)
  • BBC Micro (in optional second processor external module added to built-in 6502)
  • Coleco Adam
  • Commodore 128 (two CPUs: Z80 and 6502-compatible 8502)
  • Dick Smith System 80 (TRS-80 clone)
  • Enterprise 128
  • Exidy Sorcerer
  • Franklin ACE 1200 (two CPUs: Z80 and 6502)
  • Galaksija
  • Grundy NewBrain
  • Jupiter Ace
  • KC85 (U880 CPU: East German Z80 clone)
  • Mattel Aquarius and Aquarius II
  • MicroBee
  • MSX-standard home computers
  • SAM Coupé (ZX Spectrum compatible)
  • Sharp MZ-700 series (Z80 clone: Sharp LH-0080)
  • Sharp MZ-800
  • Spectravideo 318, 328 and successors
  • Tangerine MICROTAN 65
  • Tatung Einstein
  • Tiki 100
  • Videoton TVC

Motorola 6803

• Matra Alice (French clone of the TRS-80 MC-10)
• TRS-80 MC-10

Motorola 6809 (8/16-bit)

• Commodore SuperPET/SP9000 (6809 as well as 6502)
• Dragon 32/64 (Welsh TRS-80 "CoCo" clones)
• Thomson MO5 (6809E)
• TRS-80 Color Computer ("CoCo") 1 and 2 (6809E)
• TRS-80 Color Computer 3 (68B09E)

Home computers using 16-bit processors

Intel x86 architecture

• IBM PCjr (8088)
• BBC Master 512 (80186 in addition to 65C02 main processor)

K1801WM1 (PDP-11 µP clone)

• Electronics BK-0010

Motorola 68k family

• Atari ST series
• Commodore Amiga series
• Sharp X68000
• Sinclair QL (68008)

National Semiconductor NS32016

• BBC Micro (in optional second processor external module added to built-in 6502)

Texas Instruments TMS9900

• Texas Instruments TI-99/4
• Texas Instruments TI-99/4A
• Tomy Tutor aka Grandstand Tutor (TMS9995)

Western Design Center 65C816

• Apple IIGS
• Commodore 64 and C128 with external CMD SuperCPU accelerator