Trisha Shetty (Editor)

SV 318

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CPU
  
Zilog Z80A @ 3.6 MHz

SV-318 FileSpectravideo SV318jpg Wikimedia Commons

Release date
  
1983 (Winter CES, Las Vegas)

Media
  
ROM Cartridge, cassette tape, 5¼-inch floppy disks

Operating system
  
Memory
  
16 KB (+16 KB video memory)

The SV-318 is the basic model of the Spectravideo range. It was fitted with a chiclet style keyboard, difficult to use, alongside which sat a combination cursor pad/joystick. This is a disc-shaped affair with a hole in the centre; put a red plastic 'stick' in the hole and it is a built-in joystick, remove the stick and it is a directional arrow pad for word processing etc. This machine also had only 16 kb of user RAM (plus an additional 16 kb of video RAM), which limited its usefulness, though this could be expanded via an external peripheral box.

Contents

SV-318 Spectravideo SV318

This machine is basically identical to its big brother the SV-328, the only differences being in the keyboard and amount of memory. The ROM, expandability, mainboard and case of the two machines were identical.

SV-318 Spectravideo SV318

Reference to the operating system Microsoft Extended BASIC is not to be confused with MSX BASIC, although some marketing at the time claimed that Microsoft Extended is what MSX stood for. The SV-318 is not fully compliant with the MSX standard.

SV-318 Spectravideo SV 318 amp 328

In 1983 Spectravideo announced the SV-603 ColecoVision Video Game Adapter for the SV-318. The company stated that the $70 product allowed users to "enjoy the entire library of exciting ColecoVision video-game cartridges".

SV-318 httpsiytimgcomviLwvYpojtr0Ihqdefaultjpg

Reception

SV-318 OLDCOMPUTERSCOM Museum Spectravideo SV 318

Popular Mechanics in February 1984 stated that the Spectravideo SV-318 "is worth searching out ... a very nice little machine". The magazine liked the integrated joystick and "stunning" graphics, but advised consumers to consider the small software library before purchasing.

System specs

SV-318 Spectravideo SV318 Boxed nIGHTFALL Blog RetroComputerManiacom

  • Processor: Zilog Z80A running at 3.58 MHz
  • ROM: 32 KB
  • BIOS (16 KB)
  • BASIC (16 KB)
  • RAM: 16 KB
  • Video Display Processor: Texas Instruments TMS9918
  • VRAM: 16 KB
  • Text modes: 40×24 and 32×24
  • Resolution: 256×192 (16 colours)
  • Sprites: 32, 1 colour, max 4 per horizontal line
  • Sound chip: General Instrument AY-3-8910 (PSG)
  • Programmable Peripheral Interface : Intel 8255
  • References

    SV-318 Wikipedia


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