That's what "computer graphics" meant in the '70s.
There were "line printer" graphics, of course, that just printed pictures on a line printer, but at college we went one step further.
We had a row of terminals that only grad students were allowed to use, for printing their thesis, because they were actually high-end typewriters with a serial port. They accepted escape characters that would move the carriage in fractions of an inch so you could do plots and character graphics like the above. There were files you could print on them that drew pictures, very slowly, and you got in trouble if you were caught doing so.