Apparently it's from 1901 (Murray code) or 1932 (ITA2). The fact that both Apple's and CP/M codes came out roughly at the same time, both on microcomputers, sh

Apparently it's from 1901 (Murray code) or 1932 (ITA2). The fact that both Apple's and CP/M codes came out roughly at the same time, both on microcomputers, shows that it was probably just a design decision.