The Knuth Prize for outstanding contributions to theoretical computer science is presented alternately at FOCS and STOC.
[1] In addition, the Machtey Award is presented to the best student-authored paper in FOCS.
Since 1973, the cover page of the conference proceedings has featured an artwork entitled synapse, by Alvy Ray Smith, who has also been the author of three papers in the conference.
[2] The publisher uses the acronym SFCS on their web sites for the conferences in 1975 to 1987.
[3] FOCS is almost exclusively held in North America, and in particular in the United States, with few exceptions.