Timex Computer 3256

The TC 3256 or Timex Computer 3256 was a 1987^[1] computer created by Timex of Portugal, a branch of Timex Corporation.^[2][3][4]

It was a third generation Sinclair ZX Spectrum compatible computer, with expanded capabilities and new BASIC commands supporting the AY-3-8192 sound chip, RS232 network and the 512x192 pixel high resolution graphic mode.^[5][6]

Besides the legacy Sinclair BASIC, the ROM included a work processor (Timeword), (with support for the Tenet^[7] network, floppy disks and RAMdrive) and a CP/M Terminal emulator. RAM was expanded to 256k

The machine never reached the market since Timex of Portugal shut down its production line before its release.

Technical specifications[]

CPU

• Zilog Z80A

ROM

• 64K
  • 16K Sinclair BASIC
  • 16K text processor^[6]
  • 16K (Tenet, disk, RAMdrive)
  • 16K CP/M Terminal emulator

RAM

• 256K
  • 208K
  • 48K base memory

Display

• Improved ULA offering additional screen modes:
  • Text: 32×24 or 64x32 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 two color 512×192 mode

Sound

• Beeper (1 channel, 10 octaves and 10+ semitones via internal speaker)
• AY-3-8912

I/O

• RS232:
• Cartridge Port
• Tape audio in/out for external cassette tape storage
• RF television out
• Composite video monitor out
• RGB monitor out
• Kempston Joystick input

Storage

• External cassette tape recorder
• Disk Drive: TOS / CP/M

Keyboard

• 69 keys with cursors, numpad and function keys

See also[]

• Timex Sinclair
• Timex Sinclair 2068

References[]

External links[]

• Timex Computer World

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