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Draft:CUTS

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  • Comment: Needs additional demonstration of WP:SIGCOV to exist as a standalone article Chetsford (talk) 15:34, 1 June 2025 (UTC)
  • Comment: I don't this is notable enough for a stand-alone article you may be able to add some of this content to the Sol-20 article. McMatter (talk)/(contrib) 23:20, 4 March 2025 (UTC)

With this being my first attempt at writing an article for Wikipedia, please forgive this work's shortcomings; it's been a long time since I've had to cite a sufficient number of relevant references. With the VDM-1 board already posted on Wikipedia and the 3P+S also posted as a stub, it seemed fitting that this other board from the 'Subsystem B' board set should also have a presence (whether its a article or a stub).

When published, this article will provide additional links for the Processor Technology S100 Board List as well as several mentions in the Kansas City Standard articles.

Looking forward to hearing your suggestions as to how I can polish this piece up to meet the high standards of Wikipedia. Jason

CUTS Board

The S-100 Computer Users Tape System aka CUTS[1] interface board provided cassette tape storage for the early S-100 microcomputers of the late 1970s. When connected to one or two compact cassette tape decks, early micro-computer enthusiasts could now save and retrieve programs and/or data to and from audio tape. Reading and writing data at 1200baud, the CUTS board provided a dramatic convenience and speed improvement over the paper punch tape method of program saving and retrieval in use at the time.

Processor Technology Corporation, the makers of the Sol-20 computer, packaged the Sol's cassette tape interface circuitry into their CUTS board.

Previously in 1975, the Kansas City Standard for cassette data storage was defined. Processor Technology incorporated the KC Standard as well as their faster compatible CUTS format into the functionality of this board.

Early kit computer enthusiasts with an S-100 bus computer such as the MITS Altair 8800, IMSAI 8080 or similar chassis usually wanted something more than front panel toggle switches for input and LEDs for output. They wanted to be able to interface their computer to external devices such as a monitor, keyboard, dumb terminal, printer, teletype, paper tape reader/writer and cassette tape drives. The CUTS board first appeared in a company advertisement in the December 1976 issue of Byte Magazine. No details were provided other than the price[2].

Later, the board was incorporated into PTC's Subsystem "B" board set, which simplified system integration by eliminating the need for enthusiansts to source and combine the functions of various boards from different vendors. In the March 1977 edition of Byte magazine, the company started promoting the board set. The advertisement opening line read: "Subsystem "B" makes the computer you already have work almost as well as a new Sol-20."[3] This board set included:

  • the CUTS board,
  • the VDM-1 video display board, the 3P+S Serial / Parallel I/O board,
  • the GPM (General Purpose Memory Module) PROM / RAM board,
  • one of three different RAM boards.

Combining an 8080 CPU board with the Subsystem "B" [4] board set, along with PTC's CUTER firmware (either in PROM on the GPM board or loaded into RAM from paper tape or cassette) the computer was comparable in power and compatible with software written for PTC's Sol-20 all-in-one computer.

References

[edit]
  1. ^ S-100 CUTS Board Manual
  2. ^ Processor Technology Corp. "Introducing Sol systems" (PDF). Byte December 1976. 0 (16): 75.
  3. ^ Processor Technology Corp. "Subsystem "B" makes the computer you already have work almost as well as a new Sol-20" (PDF). Byte March 1977. 02 (3): 63.
  4. ^ Subsystem B Manual

S100 Computers - CUTS Board