(written from a Production point of view)
Isaac Asimov (born Isaak Yudovich Ozimov) (2 January 1920 – 6 April 1992; age 72) was a noted science fiction author and a well-respected voice within the scientific community and was an outspoken supporter of cybernetics and creator of the "Three Laws of Robotics," intended to protect Humans from androids, or 'robots' as they were called then. As stated in "Datalore", he did in fact coin the term "positronic brain". He was also a good friend of Star Trek creator Gene Roddenberry and scientific adviser for Star Trek: The Motion Picture.
Asimov's collaboration with Star Trek began with a December 1966 article he wrote for TV Guide, in which he criticized the series for its scientific inaccuracy. Roddenberry wrote a letter to Asimov, explaining how hard they try to keep the show remaining in the realm of serious science fiction, which made him change his opinion, and became a loud supporter of Star Trek. He and Roddenberry soon became friends and often shared letters in which Asimov gave advice concerning the series. (Inside Star Trek: The Real Story) Asimov also attended the first Star Trek convention in 1972. (The Star Trek Compendium)
On the subject of his birthdate, he said in In Memory Yet Green, "The date of my birth, as I celebrate it, was January 2, 1920. It could not have been later than that. It might, however, have been earlier. Allowing for the uncertainties of the times, of the lack of records, of the Jewish and Julian calendars, it might have been as early as October 4, 1919. There is, however, no way of finding out. My parents were always uncertain and it really doesn't matter. I celebrate January 2, 1920, so let it be."