23 Dec
2008
23 Dec
'08
10:24 p.m.
On 23 Dec 2008 at 22:20, Jim Battle wrote:
John Kardash invented the JK flip flop. At least,
that is what the prof said back in 1982
when I was at school.
From Wikipedia:
The origin of the name for the JK flip-flop is detailed by P. L.
Lindley, a JPL engineer, in a letter to EDN, an electronics design
magazine. The letter is dated June 13, 1968, and was published in the
August edition of the newsletter. In the letter, Mr. Lindley explains
that he heard the story of the JK flip-flop from Dr. Eldred Nelson,
who is responsible for coining the term while working at Hughes
Aircraft. Flip-flops in use at Hughes at the time were all of the
type that came to be known as J-K. In designing a logical system, Dr.
Nelson assigned letters to flip-flop inputs as follows: #1: A & B,
#2: C & D, #3: E & F, #4: G & H, #5: J & K.
Another theory holds that the set and reset inputs were given the
symbols "J" and "K" after one of the engineers that helped design the
J-K flip-flop, Jack Kilby.
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Or Jack Klugman...
Cheers,
Chuck