Not even close. The strips were stored in containers called cells, each containing 20 subcells of 10 strips. It was the cells that were arranged in a cylinder, not the strips. The 2321 extracted a single strip and wrapped the one strip around a drum to read or write it, then returned it, sometimes to the correct subcell.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Joe Monk <[email protected]> Sent: Monday, December 30, 2019 10:33 AM To: [email protected] Subject: Re: RCA MCF and jukebox Here's one you'll enjoy: The IBM 2321 Data Cell. It was a device that used magnetic tape strips (2" wide and 13" long) arranged in a circle. Each "segment" of the circle was called a "cell". https://www.ibm.com/ibm/history/exhibits/storage/storage_2321.html Joe https://secure-web.cisco.com/1dOY3F7t6JUcaHCgcELaX005V-BSe4XNBBngL-Kr6g2WTnrVsYmirunLZt0MG8Pehm_gJXk_dDyEPaTXjy-RYEIn3cVLDTZVDpAAEbfZqagVbwvl5LQFszAJkGpdYC6CE_mjzRQgH0ufkpEZofPPHE2c5cKq-OCcOQGaVFkZH0jm8rsCZTiG_d8SYr2xFGMaJ_QP79FXuqRnYRdtcFzcWRAwu6_ohf5SXN4Bj6l3WAOTHe8jT3ZnPl4-JMXoUiKpJgqkBaLENSFVZ2E5WvoKdm4-roa1-D5KeN4F5W0F9_Chc-FdaPhwyLye_xOiBsiyUnl0wqN29PNCb54HtphaKlzZ3yantEe3kSP43vJPPciz42LUjmYh_vdLoN8oJC-g1BvujGFn-gPTIkgXBmi96npo9dzV-56F-asa78JVJCjTah0_4GCv4ffdHIF5tzlNV/https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FIBM_2321_Data_Cell#/media/File:IBM2321DataCellAtUMich.jpg On Mon, Dec 30, 2019 at 9:26 AM R.S. <[email protected]> wrote: > This is rather off-topic, but somehow related to old mainframe machines. > I'm looking for information, pictures, descriptions of old magnetic > storage devices, especially not disks and tapes. > Examples: NCR CRAM, Electrodata or Potter RAM. > > I also found some magic devices from RCA, used by some Bull Gamma 30 > machine also. > > There are two devices: > 1. RCA MCF (Magnetic Card File) or RACE (Random Access Card Equipment), > possibly 70/568-11 > 2. Jukebox similar to music jukebox, 128 discs, possible name is Data > Record File, device type 361, part of RCA 301. > > (note, it is possible I mismatched names of different products) > > Of course I used google, found some manuals on bitsavers, but those > devices are still very cryptic for me. 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