Robert Royce "Bob" Johnson (1928–2016) was an American inventor, engineer, computer pioneer, and professor. Besides the

Johnson counter A ring counter is a type of counter composed of flip-flops connected into a shift register, with the output of the last flip-flop fed to the input of the first, making a "circular" or "ring" structure. There are two types of ring counters: * A ...

, a type of

ring counter A ring counter is a type of counter composed of flip-flops connected into a shift register, with the output of the last flip-flop fed to the input of the first, making a "circular" or "ring" structure. There are two types of ring counters: * A ...

that was named for him, he developed the method of encoding numbers on checks still in use as of 2018.Salt Lake Tribune obit
March 2016

References

1928 births 2016 deaths 20th-century American inventors {{US-inventor-stub