Here is an interesting article on the history of TTL.
How Fairchild won a battle but lost the war to Texas Instruments:
http://www.computerhistory.org/atchm/the-rise-of-ttl-how-fairchild-won-a-battle-but-lost-the-war/
How Fairchild won a battle but lost the war to Texas Instruments:
http://www.computerhistory.org/atchm/the-rise-of-ttl-how-fairchild-won-a-battle-but-lost-the-war/