Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
American inventor, engineer, computer pioneer, and professor
Robert Royce "Bob" Johnson (1928–2016) was an American inventor, engineer, computer pioneer, and professor. Besides the Johnson counter, a type of ring counter that was named for him, he developed the method of encoding numbers on checks still in use as of 2018.