Timex Computer 2048

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This article is about the Timex Computer 2048 (TC 2048). For the similarly named but different ZX Spectrum-variant prototype intended for sale in North America, see Timex Sinclair 2048 (TS 2048).
Timex Computer 2048
Timex Computer 2048
TypeHome computer
Release date1984; 36 years ago (1984)
Discontinued1989 (1989)
Operating systemSinclair BASIC
CPUZilog Z80A @ 3.5 MHz
Memory48 KB
PredecessorZX Spectrum
SuccessorTimex Sinclair 2068, Spectrum SE

The TC-2048 or Timex Computer 2048 is a 1984 computer created by "Timex North American, Lda", a branch of Timex Corporation. It was based on the Timex Sinclair 2048 prototype, a 16k version of the TS-2068, with a similar redesign case, Kempston joystick interface and additional video modes.[1]

It was highly compatible with the Sinclair ZX Spectrum computer, although differences in the ROM prevented 100% compatibility.[2]

Timex Portugal sold the TC 2048 in Portugal and Poland, where it was very successful, selling more than 10000 units.[3][4] Also, a NTSC version was sold in Chile.

This computer forms the basis of an improved Spectrum-compatible machine, the Spectrum SE.

Two modifications of the TC2048 exist[5]: the TC2128 (by STAVI)[6] and the TC2144 (by Jarek Adamski)[7]. Both extend the RAM to 128K and upgrade the ULA to use four screen areas.

Technical specifications[edit]


  • Zilog Z80A @ 3.50 MHz


  • 16 KB


  • 48 KB


  • Improved ULA offering additional screen modes:
    • Text: 32×24 characters (8×8 pixels, rendered in graphics mode)
    • Graphics: 256×192 pixels, 15 colours (two simultaneous colours - "attributes" - per 8×8 pixels, causing attribute clash)
    • Extended Color: 256×192 pixels, 15 colors with colour resolution of 32×192 (two simultaneous colours - "attributes" - per 1×8 pixels)
    • Dual Screen: (two 256×192 pixels screens can be placed in memory)
    • A monochrome 512×192 mode


  • Beeper (1 channel, 10 octaves and 10+ semitones via internal speaker) [By separate purchase the Joystick/Sound Unit was available to enhance sound and provide a joystick port.]



  • External cassette tape recorder
  • 1–8 external ZX Microdrives (using ZX Interface 1)
  • Timex FDD (Floppy Disk Drive System Power Supply, Controller and Disk Drive in separate cases. 16K RAM, Timex Operating System (TOS))
  • Timex FDD3000 (Enhanced version (all in one case) of the Timex FDD but upgraded to 64K RAM & TOS with two Hitachi 3″ disk drives)

See also[edit]


External links[edit]