A rotating number selector on early telephones (and TVs). Introduced in the early 1900s, rotary phones were commonly used from the 1920s until the 1960s, when dial phones were gradually replaced ...

We’re not sure about the rest of you, but to us, a keyboard without a number pad all the way over ... is that rapid numeric keying is not what this rotary dial numpad keyboard is all about.

After what he claims was an hour or so of hacking, he was able to get this Arduino-compatible SoC dev board to detect the pulses from the rotary dial, then pass the appropriate number to a ...

Almon Brown Strowger filed the first patent for a rotary dial, U.S. patent #486,909, on December 21, 1891, that was later issued to him on November 29, 1892. Code ...