From wikipedia:
"It first appeared in the November 1956 issue of Science Fiction Quarterly and was reprinted in the collections Nine Tomorrows (1959), The Best of Isaac Asimov (1973), Robot Dreams (1986), the retrospective Opus 100 (1969), and in Isaac Asimov: The Complete Stories, Vol. 1"
I personally read it in Robot Dreams, which is a great collection of stories.
Pardon me, that answer was for 'The Last Question' (also a truly awesome short story). I'm sure I read this one in one of his collections but I don't remember which and Wikipedia is no help in this case.
Comments
From wikipedia: "It first appeared in the November 1956 issue of Science Fiction Quarterly and was reprinted in the collections Nine Tomorrows (1959), The Best of Isaac Asimov (1973), Robot Dreams (1986), the retrospective Opus 100 (1969), and in Isaac Asimov: The Complete Stories, Vol. 1"
I personally read it in Robot Dreams, which is a great collection of stories.
Pardon me, that answer was for 'The Last Question' (also a truly awesome short story). I'm sure I read this one in one of his collections but I don't remember which and Wikipedia is no help in this case.
The earliest publication I can find is 1971. http://books.google.com/books?id=gzwrAQAAIAAJ&q=Isaac+As...
Edit: 1971 may be a typo for 1981.