• ANTIC Interview 445 - Vince Cate, The Critical Connection

  • Nov 22 2024
  • Length: 31 mins
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ANTIC Interview 445 - Vince Cate, The Critical Connection

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  • Vince Cate, The Critical Connection In my last interview, I talked with the creator of SIO2PC, which let Atari users use a DOS computer as its disk drive and printer. This interview is with the creator a product which - six years earlier - let Atari users use a CP/M computer as its disk drive and printer (and keyboard.) Vince Cate owned a company called USS Enterprises, with just one product: The Critical Connection. Critical Connection was a combination of a specialized cable and software for connecting an Atari 8-bit to a computer running CP/M. The long cable had an SIO plug on one end and a 25-pin serial plug on the other, and some chips in the middle, allowing the Atari and CP/M box to communicate at 19,200 bps. The Critical Connection was released in 1983, six years before SIO2PC. They shared many similar features: with it you could: use an entire CP/M floppy disk as an emulated 600K Atari disk drive, create 92KB CP/M disk files which emulated Atari 90KB disks, and print from the Atari to the CP/M computer's printer. The CP/M machine even acted as a print spooler. You could also use the CP/M machine's keyboard to type on the Atari. Vince needed to create a file format to store virtual floppy disks on the CP/M machine: the filename extension was .ATR. I don't know positively, but I'm pretty sure it's a different file format from the well-known .ATR format that Nick Kennedy created for SIO2PC six years later... just similar functionality given similar names. Nick Kennedy told me that he had never heard of The Critical Connection. Here's what Jerry Pournelle wrote about Critical Connection in the September 1983 issue of Byte magazine: "Vincent Cate continues to improve his Critical Connection. This gadget makes an Atari think a CP/M computer system is a set of disks. The only requirement is that your CP/M system have an RS-232C serial port operating at 19,200 bps. Given that, you needn't buy disks for an Atari; by using The Critical Connection, you can make the Atari believe you have four disks. The really nice part is that you can use 8-inch as well as 5 1/4 -inch disks. Cate's new software package has automatic installation for a number of CP/M systems, including Kaypro, North Star, Sanyo, CCS, Heath/Zenith, and Morrow. ... Cate's documentation is improved, but it's not what I'd call good. Still, you can puzzle it out, and if you don't want to invest a lot in an Atari system but still want to use disks with it, Cate's Critical Connection is the way to go." This interview took place on November 20, 2024. Video version of this interview on YouTube Vince's web site Vince in Wikipedia Critical Connection review in ANALOG magazine 1986-02 CC version 1 in Antic XL version in Antic In Byte 1983-09 In Dr. Dobbs Journal 1983-09 Critical Connection at AtariMania ANTIC Interview 444 - Nick Kennedy, SIO2PC and ATR Support Kay's interviews on Patreon
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