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Re: NCR Card Random Access Memory (CRAM)

From G. <gerry77@no.spam.mail.com>
Newsgroups it.comp.retrocomputing
Subject Re: NCR Card Random Access Memory (CRAM)
Date 2020-05-20 20:04 +0200
Organization Aioe.org NNTP Server
Message-ID <oeracf52lssto9fp76p46impkirgjs61ef@4ax.com> (permalink)
References <r9sspg$1bfr$1@gioia.aioe.org>

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On Mon, 18 May 2020 04:44:02 +0200, "zfkirone@gmail.com"
<zfkirone@gmail.com> wrote:

> Cercavo informazioni sul SO IMOS V, quando sono incappato in questo
> sistema di storage, un accrocchio a base di card magnetiche
> selezionabili che venivano fatte cadere su un cilindro rotante, sul
> quale aderivano pneumaticamente, per essere lette e scritte; poi
> venivano fatte tornare al loro posto.
> La selezione avveniva mediante dei fori attraverso i quali passavano
> delle bacchette sagomate le quali, ruotando, liberavano la card
> specificata dal relativo numero (in codice binario). :)

Più o meno la stessa idea della Data Cell IBM 2321 :)

https://en.wikipedia.org/wiki/IBM_2321_Data_Cell

In particolare qui si vede una schematizzazione del meccanismo di selezione
della striscia magnetica che veniva agganciata e avvolta su un tamburo:

http://members.optusnet.com.au/intaretro/2321D3.jpg

Altre informazioni nei riferimenti della pagina di Wikipedia. In special
modo qui a partire da pagina 65:

http://bitsavers.org/pdf/ibm/2841/GA26-5988-7_2841_DASD_Component_Descr_Dec69.pdf

Ciao, :)
G.


P.S. — Hai trovato qualcosa su IMOS V?

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NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-18 04:44 +0200
  Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-18 04:47 +0200
    Re: NCR Card Random Access Memory (CRAM) "Dino.Baldi" <dino.baldi@gmail.com> - 2020-05-18 06:15 -0700
  Re: NCR Card Random Access Memory (CRAM) G. <gerry77@no.spam.mail.com> - 2020-05-20 20:04 +0200
    Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-24 09:30 +0200
      Re: NCR Card Random Access Memory (CRAM) G. <gerry77@no.spam.mail.com> - 2020-05-24 21:03 +0200
        Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-25 18:37 +0200
          Re: NCR Card Random Access Memory (CRAM) G. <gerry77@no.spam.mail.com> - 2020-05-26 15:21 +0200
          Re: NCR Card Random Access Memory (CRAM) Giuseppe³ <miaooaimATtiscaliDOTit@xxx.xxx> - 2020-05-26 19:30 +0200
            Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-26 19:56 +0200
              Re: NCR Card Random Access Memory (CRAM) Giuseppe³ <miaooaimATtiscaliDOTit@xxx.xxx> - 2020-05-26 20:47 +0200
              Re: NCR Card Random Access Memory (CRAM) Giuseppe³ <miaooaimATtiscaliDOTit@xxx.xxx> - 2020-05-26 20:53 +0200
                Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-26 21:46 +0200
                Re: NCR Card Random Access Memory (CRAM) Giuseppe³ <miaooaimATtiscaliDOTit@xxx.xxx> - 2020-05-26 22:43 +0200
              Re: NCR Card Random Access Memory (CRAM) G. <gerry77@no.spam.mail.com> - 2020-05-27 11:26 +0200
                Re: NCR Card Random Access Memory (CRAM) "zfkirone@gmail.com" <zfkirone@gmail.com> - 2020-05-27 13:44 +0200
                Re: NCR Card Random Access Memory (CRAM) G. <gerry77@no.spam.mail.com> - 2020-05-27 18:52 +0200
                Re: NCR Card Random Access Memory (CRAM) scap61 <scap6161@yahoo.it> - 2020-05-28 00:17 -0700

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