Sometime later, maybe around 1971 they got some IBM
2741 terminals which
were Selectric typewriters connected to an interface. Later they got some
IBM 2260's, which were Zenith 9" TV sets and a keyboard connected to an
interface box in the machine room. Very primitive, but very interactive,
great for quick program editing and submission.
Were 2260s really Zenith products inside? I certainly could believe
it, judging from the tube lineup. Someday I would like to see one up
close and personal.
The 1800 actually did have a video option, and yes, you had to provide
your own cheap black and white TV.
--
Will