TRICON was a concordance program developed in the 1960s for the Berkeley Machine Translation Project. The program was designed to work with texts in languages written in non-Roman alphabets, such as Russian (original version) or Judeo Arabic texts (as of 1967). It was developed in FORTRAN G and ran on IBM 360/70 computers.

The Scharfenberg-Smith Concordance Program, briefly known as the ICRH (Institute for Computer Research in the Humanities) Concordance Generator, was developed at the Thomas J. Watson Reserach Centre as part of research in machine translation from Russian to English. It was first described in 1964 as a program for teh IBM 7090.