There's no blitter so scrolling is awfully slow. Quoting terminfo database:
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The bitgraph was a large white box that contained a monochrome bitmap display, and a 68000 to run it. You could download code and run it on the cpu, it had 128kb (I think) of memory. I used one in the late 70's, sure beat a vt100. It had one strange feature tho -- it used the cpu to bitblt pixels to scroll, it took longer than the refresh rate, and looked like a rubber sheet stretching, then snapping upwards. It had everything the early mac had, except a floppy drive a small screen (it had a 17" crisp beauty) and a real OS. They (Bolt Beranek and Neuman) sold at most a few hundred of them to the real world. DOD may have bought more...
