The current post, technically a dupe, gets a pass because this man was amazing. How amazing? Here is the afterword to the NYT story:
Mr. Clark, during the 1950s, led the design of two other significant experimental computers, the TX-0 and the TX-2. The TX-0 was the world’s first transistorized computer. The TX-2 was used by Ivan Sutherland, then an M.I.T. graduate student, in creating Sketchpad, a software design program that was a fundamental advance in the graphical display and control of digital information.
The first transistorized computer and the one used to make Sketchpad? Oh yeah just a couple side projects.