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<p>Are you referring to DECtape II? That was a cassette.</p>
<p>I was referring to the (nearly indestructible) earlier format:
simply called DECtape or DECtape I. It's the same media as
LINCtape (a small reel), but with a very different controller.
These could store a little over 70K (36 bit) words.<br>
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<div class="moz-cite-prefix">On 3/31/20 4:40 PM, Clem Cole wrote:<br>
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style="font-family:arial,helvetica,sans-serif">Dave the TA11
(DEC proprietary Phillps Cassettes) were 150 ft long. I just
looked in my 1976 Peripherals Handbook -- Tape capacity of
92,000 bytes (not kbytes mind you). Two tapes per TA11; one
for the OS and the other the user. We had a couple at CMU on
11/20's running RT-11 in the EE Digital lab for the RT
system's course - in fact, the famous "110v non-maskable
interrupt" occurred on one of those machines</div>
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<div dir="ltr" class="gmail_attr">On Tue, Mar 31, 2020 at 3:14
PM Dave McGuire <<a href="mailto:mcguire@neurotica.com"
moz-do-not-send="true">mcguire@neurotica.com</a>> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On
3/31/20 2:33 PM, Thomas DeBellis wrote:<br>
> 32MB really was ginormous back in the day; our labs had
RT on RK05's,<br>
> which held about 2.5MB. Way more than a DECtape.<br>
<br>
When I started out, I had it on RL01s. But I suspect you
have a few<br>
years on me. ;) That was quite a bit of space at the time.<br>
<br>
-Dave<br>
<br>
-- <br>
Dave McGuire, AK4HZ<br>
New Kensington, PA<br>
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