What did computers without screens do?

On 12/14/2015 04:31 PM, Mike wrote: I saw plenty of early home computers with TTY or Selectric I/O. If you could find a timesharing service to hook your home up in the 60s and early 70s, it was probably with a TTY. (Anyone remember Call Computer in Mountain View?) Consider, for example the Honeywell H-316 "kitchen computer" from 1969: https://en.wikipedia.org/wiki/Honeywell_316 To the best of my knowledge, it was more of a concept than a real product. But no screen, notice? Legions of high-school and college students before about the mid-70s had no access to screens. If you didn't use punched cards, you probably used a TTY. But then, video output was rare for employees of the computer manufacturers. Too expensive. Paper--lots of it. You did your serious programming with pencil and paper, then punched or entered it. That was the old IDE. Considering the amount of code written, it wasn't too bad. --Chuck