I came across an interesting question on twitter a few days ago that sent me spiraling into a brief bout of research. Via Matthew Kirschenbaum, Matt Schneider posed the question of when the greater than (>) and less than (<) symbols first appeared on keyboards. I managed to come up with two contenders.

Above is the 1955 Olympia SM3 De Luxe (with science and math keys). It seems that typewriters beat computers to the punch, as there were some early keyboard layouts that included mathematical symbols at a time when computers were programed in assembly languages that were coded/punched on...








