Question

ECL was invented in _______ by __________

(a) 1956, Baker clamp

(b) 1976, James R. Biard

(c) 1956, Hannon S. Yourke

(d) 1976, Yourke

The question was posed to me in an interview for internship.

This interesting question is from Emitter-Coupled Logic(ECL) in chapter Logic Families of Digital Circuits

Answer 1

The correct option is (c) 1956, Hannon S. Yourke

To explain I would say: ECL was invented in August 1956 at IBM by Hannon S Yourke.