I had one of these.
You could use it as a word processor and "proof read" two lines at a time on the little screen. It would hold the paper in memory and then you could print it out.
Me too! I had one I searched for, but couldn't find it. Very similar to that, only showed one line at a time. Pretty sure it was a Casio. It was black, cost me $99 at Consumer Distributors, and was a pain in the ass to work with. Most you could really do with mine was be able to fix mistakes, if you caught them in time, without whiteout.
We've come a long way.
I remember like it was yesterday, the first time I saw what a real word processor could do. I was in my first year of college, 1986, and my girlfriend was a secretary. She took me to her work place late at night to type up a report for me, and I was astounded at the editing that was possible (this was before I owned the ones mentioned above). When finished, my report had to be 5 type written pages, and it was only 4. She said, "No, problem", changed the font, margins, and type size I felt like I was Major Nelson looking at Jeanie. I was absolutely astounded! And I had a 5 page report, in about 30 seconds.
We take many things for granted today that in the 70s were beyond our (or at least my) imagination. Things be so easy today

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I had the same experience the first time I saw a sequencer, cubase, right around the same time. The ability to "FIX" mistakes in music!!!! Was unbelievable. I immediately started saving for a computer, and cubase. Still have one of the earliest versions of that. Years before audio recording was possible.