http://www.theregister.co.uk/2013/03/09/iwd_grace_hopper/

One time, I'm not sure of the date--probably in the 70s or early  80s, I had the opportunity to hear a talk/lecture/presentation by Grace Murray Hopper. I've never forgotten it. She was one of a kind.

Among other things, she was instrumental in the development of Cobol. Most programmers today sneer at it, but as the article says:
"COBOL was one of the most successful computer languages and is still in use today. Research by Datamonitor found that in 2008 there were between 1.5 and 2 million developers still working with the 50-year-old programming language, adding five billion lines of code to the 200 billion already running on live systems."
BTW, I'm not now and never was a COBOL programmer (FORTRAN, another sneer-able language, was my bag.)

Mark Jarvis
(ancient geek)