I was wondering how these worked, especially without a screen, and found a view point on this article that mentions the functionality of early word processors f

I was wondering how these worked, especially without a screen, and found a view point on this article that mentions the functionality of early word processors from IBM: "...it was not a modern word processor that allows you to type an entire document and then print it out. You typed one line at a time on an IBM Selectric typewriter—fixing typos along the way—and then saved each line on a device that used quarter-inch magnetic tape. When you were done, you put a blank piece of paper in the typewriter and told it to spit out all the lines you had typed." https://www.motherjones.com/kevin-drum/2018/12/the-first-true-word-processor-was-invented-by-ibm/ https://www.motherjones.com/kevin-drum/2018/12/the-first-tru... The Redactron Data Secretary was similar but instead of tape it used chips, which made things a bit easier.