imitation game movie

William Donzelli wdonzelli at
Wed Feb 11 23:01:09 CST 2015

Those would have been the IBM 2260 terminals, but they were beyond
dumb - they were retarded. Each 2260 was more or less just a video
monitor and a keyboard encoder. The brains were all in the 2848
control unit, which had mercury delay lines to service a number of
2260s (maybe up to 16 I think?).

The bad news is that if you ever find a 2260, it will just be another
chrome doughnut in your collection, being useless without a 2848,
which likely just do not exist anymore.


On Wed, Feb 11, 2015 at 11:50 PM, Chuck Guzis <cclist at> wrote:
> On 02/11/2015 05:47 PM, Jon Elson wrote:
>> On 02/11/2015 01:22 PM, Chuck Guzis wrote:
>>> That was the Super Bee, right?  8008 CPU, but I thought the memory was
>>> MOS shift-register, not bucket-brigade (which I mostly associate with
>>> analog applications, such as reverb effects).
>> No, this predated the super bee.  No CPU at all, just about 75 TTL ICs,
>> the clock
>> drivers and the bucket brigade chips.  And, yes, some versions of them
>> were
>> capable of analog signals, and used to make reverbs.
> Hmm, not familiar with that terminal.  Was it like the IBM terminals (2250
> IIRC?) that used delay lines for video memory (i.e. the delay line didn't
> drive a ROM character generator, but rather held the generated characters)?
> --Chuck

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