The earliest terminal and printer I used that supported lower case, supported lower case "without true descenders", i.e., the lower case letters had to fit in the same character cell as the upper case letters. Lower case "g", for example, was shifted up, which looked funny. Needless to say, we felt really modern and high class when we got hardware that supported "true descenders". (And of course all this was a built-in monospace font; font support was years in the future.)