Home Computers, ZX Spectrum versus Commodore 64

The Commodore 64 (C64) and ZX Spectrum were the primary rivals of the 8-bit home computing era, particularly in the UK, where they defined a decade of “playground wars”. While the ZX Spectrum launched in April 1982 as an affordable entry into computing, the Commodore 64 followed in August 1982 with superior custom hardware for sound and graphics. 

1982: The Birth of the Icons 

  • January: Commodore unveils the Commodore 64 at CES in Las Vegas.
  • 23 April: Sinclair Research launches the Sinclair ZX Spectrum 16K/48K in the UK. It is marketed for its 15-colour palette and affordable price compared to the BBC Micro.
  • August: The Commodore 64 begins volume production and goes on sale in the US for $595.
  • Late 1982: Sinclair introduces the Issue 2 motherboard for the Spectrum to fix manufacturing defects. 

1983: Expansion and Price Wars

  • January: Commodore introduces the Commodore SX-64, the first commercial full-color portable computer.
  • July: The Timex Sinclair 2068, an enhanced US version of the Spectrum, is launched.
  • August: Spectrum sales in Britain and Europe exceed 500,000 units.
  • December: The millionth ZX Spectrum is manufactured.
  • Market Shift: Commodore begins aggressive price-cutting to underbid competitors, leading to the “Home Computer Price War”. 

1984–1985: New Iterations and Corporate Shifts

  • January 1984: Sinclair announces the Sinclair QL, intended as a professional successor to the Spectrum.
  • October 1984: Sinclair releases the Sinclair ZX Spectrum+, featuring a new QL-style case and a plastic injection-moulded keyboard to replace the original rubber keys.
  • January 1985: Commodore releases the Commodore 128, a successor that includes a dedicated “64 mode” for 100% compatibility with C64 software.
  • September 1985: The Sinclair ZX Spectrum 128 (codenamed “Derby”) is launched in Spain, featuring 128KB RAM and a three-channel sound chip. 

1986–1987: The Amstrad Era and Redesigns 

  • January 1986: The ZX Spectrum 128 is officially released in the UK.
  • 7 April 1986: Amstrad acquires the Sinclair brand and computer range for £5 million after Sinclair Research faces financial difficulties.
  • Late 1986: Commodore introduces the Commodore 64C, a redesigned model with a sleeker, light-coloured case matching the C128’s aesthetic.
  • Late 1986: Amstrad releases the ZX Spectrum +2, featuring a grey case and a built-in cassette recorder.
  • 1987: Amstrad launches the ZX Spectrum +3, which includes a built-in 3-inch floppy disk drive. 

1988–1994: The Twilight Years 

  • 1988: Amstrad releases the ZX Spectrum +2A, updating the +2 with the internal circuitry of the +3.
  • 1990: Commodore attempts to move into the console market with the Commodore 64 Games System (C64GS), a keyboard-less version of the C64 that ultimately fails commercially.
  • 1992: Amstrad officially discontinues all ZX Spectrum models after approximately 5 million total units sold.
  • April 1994: The Commodore 64 is officially discontinued as Commodore International enters bankruptcy. It remains the best-selling single computer model of all time with 12.5 to 17 million units sold. 

Home Computers, ZX Spectrum versus Commodore 64

Sinclair ZX Spectrum Timeline History

The ZX Spectrum timeline spans from its revolutionary launch in 1982 to its final official production in 1992, followed by a vibrant modern era of community-driven hardware. 

The Sinclair Era (1982–1986) 

  • 23 April 1982Sinclair Research launches the ZX Spectrum at the Earls Court Computer Show. It features 16 KB (£125) or 48 KB (£175) of RAM, a Z80A CPU, and the iconic rubber “chiclet” keyboard.
  • 1983: Timex Sinclair 2068 is released in the US as a modified version of the Spectrum.
  • October 1984: The ZX Spectrum+ is released for £179. It features a new injection-moulded keyboard similar to the Sinclair QL and a dedicated reset button, but remains electronically identical to the 48K model.
  • September 1985: The ZX Spectrum 128 (“The Toast Rack”) is unveiled at the SIMO trade show in Spain. It introduces 128 KB of RAM, an AY-3-8912 sound chip, and MIDI compatibility.
  • January 1986: The ZX Spectrum 128 officially goes on sale in the UK for £179.95. 

The Amstrad Era (1986–1992) 

  • 7 April 1986Amstrad plc acquires the “Sinclair” brand and all Spectrum assets from Sinclair Research for £5 million.
  • 1986: The ZX Spectrum +2 is released. It features a grey case with a spring-loaded keyboard and a built-in “Datacorder” cassette player.
  • 1987: The ZX Spectrum +3 launches with a built-in 3-inch floppy disk drive, replacing the tape deck. It is the only official Spectrum capable of running the CP/M operating system.
  • 1988–1989: Amstrad releases the +2A+2B, and +3B models, which use unified circuit boards and transition to black cases.
  • 1992: Official production of all ZX Spectrum models is discontinued. 

The Modern Revival (2017–Present)

  • 2017: The ZX Spectrum Next Kickstarter campaign successfully funds a new, officially licensed hardware evolution.
  • February 2020: The first batch of ZX Spectrum Next machines is delivered to backers.
  • November 2023: The ZX Touch, a handheld emulation console, is released.
  • 22 November 2024Retro Games releases “The Spectrum”, a modern HDMI-compatible recreation with 48 built-in games.

ZX Spectrum Timeline History