Hacker News Reader

Comment by detourdog | Hacker News Reader

IBM selectrics were essentially word processors. The input and output made an easy transition into the current office environment. Paper and a rollerball was far superior to any printer or monitor I saw in those days.

View on HN

Earlier Selectrics were completely electromechanical, with no storage or word processing features. They were just electric typewriters with a different mechanism. I learned to type on one in high school, the summer before taking my first programming course, when they were still teaching typing on electric typewriters and there were about eight terminals total on the campus PDP-11.

The Selectric wasn't the only single-element typewriter design. There was also a Triumph-Adler design which used a cylindrical type element instead of a ball.

Thank you, I think the Selectric is a pretty interesting device. Your story makes it sound like the role earlier filled by the Friden Flexowriter. I imagine it was pretty easy for the Selectric to out do the Flexowriter for most things and the output could be easily duplicated at a certain point.

Any insight on friden flexowriter?

https://en.wikipedia.org/wiki/Friden_Flexowriter

Flexowriter was VERY before my time. State-of-the-art circa 1980 was the DEC LA120 (DECWriter III), a dot-matrix printing terminal with a logic-seeking printhead that absolutely smoked the neighboring LA36.

There were Selectrics set up as terminals, though, as the mechanism was well-suited for it. I think IBM called it a 2741. I never saw such a beast, though.

All that was needed to make a Selectric into a terminal was essentially a box to take the electrical signals of hitting the keys (that triggered the correct letter on the ball to strike the ribbon) and amplify/send them to an interface into a device that could take TTY. Early word-processors and cold-type machines used this since those Selectrics were ubiquitous and dang durable.

Reply on news.ycombinator.com