26 May
2012
26 May
'12
11:30 a.m.
On 5/25/2012 12:52 PM, Tony Duell wrote:
I expect paper tape goign right back to a 2 track (+sprockes) used for
morse code about 100 years ago :-)
_Way_ before that!. There were Elliot optical
tape readers that used this
principle in the 1950s.
Come to think of it, didn;t the Colossus tape reader work this way?
That is a Pre-555 timer era, you don't expect to have paper tape back then. The Colossus has the fastest paper taper reader out
there I expect.
I think so. The point wwas it didn't haev to start and stop the tape.
That's what complicates high speed readers. If you just letthe tape run
and grab the data as it occures, you can get high speeds very easily.
-tony