There were computerized type-setters well before the Mac. Back in the 70's, I wrote a fair amount of page-layout software, as well as a program to convert scanned logos into fonts. (Bask in the day when there were three USA manufacterers of airliners [each airline had to get its own version, and sometimes more than one version] we did publication of maintenance manuals for Boeing, Lockheed and McDonnel-Douglas) Full screen editor with variable font size, even all the way down to birds-eye view, but using vector graphics rather than pixels.