Besides the 1983 Apple IIe home computer I pictured above, I was using office computers years earlier in the Army. The Wang OIS (Office Information System) was common, with networked terminals at each workstation, that mainly gave you word processing and a data base.
They had greenish low-res characters on a black field, that would screw up my eyes when I worked late into night under fluorescent office lights. I'd go out to my car around midnight and my dashboard lights would look all yellow to me for about 10 minutes.
When I traveled I was issued another kind of terminal, one of the Texas Instruments Silent 700 series, that had a cradle to receive a phone handset, consisting of 2 rubber ear muffs. Resembling an oversized portable typewriter, everything was printed out onto a roll of thermal paper, no screen.
I'd log into an Army mainframe over ordinary phone lines, and from there I could also redirect to other computers over the Arpanet using text commands. All of which got printed out on thermal paper, meaning you needed to have lots of extra rolls with you. I mainly used it for messaging, and sending & receiving reports relating to my field work.Imagine, only 25 pounds, and $2595 USD in the 1970s! And no, those are not my own hands in the pic. Best of all, it was so portable!