On Wednesday 02 April 2008, Mikkel L. Ellertson wrote: >bruce wrote: >> i recall my 1st use of a time share on the local university's machine.. >> >> my 7th grade math teach was taking colleges courses, in like 1972.. and >> she had access to a tele-type machine with the dialup phone couple hooked >> to the machine... >> >> the machine created rollup punched out paper spools that we had written >> our "basic" programs on.... >> >> i thought punch cards were a step up when i got into college later on! >> >> i say all this as i cruise on a 4G-Mem/250G-Drive/17" laptop on a fast >> wireless network! >> >> >> my god i'm old!!! > >Even better - it was a 110 baud connection. The teletype was >probably 72 characters wide, all capitals. The paper tape had up to >8 full size holes and one small alignment hole. You were probably >punching 7 bit ASCII code, possibly with parity. The aliment hole >was used by a toothed sprocket to move the tape on the teletype, but >could also be used as a clocking bit for optical readers. > >There was also a 5 bit version that didn't use ASCII... Both types >also had a 20ma or 60ma current loop interface. Great for long >distance wired serial communications. The bast part is that were >almost entirely mechanical, with very little electronics. > >The teletype was also popular with early home computers like the >Altar 8008, and other S-100 systems. CP/M had teletype support. > >Now I feel old - I owned a model 33 teletype. > And I still own a 1650-ro, the ro meaning receive only. The worlds fastest Daisy Wheel printer at 40 cps. Its a friggin tank folks, I haven't been able to kill it in the 15 years I used it. In its day, an amazing printer. 18" wide BTW. >Mikkel -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Worst Month of 1981 for Downhill Skiing: August. The lift lines are the shortest, though. -- Steve Rubenstein
