Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
ASCII [ˈæskiː] n abbr (COMPUT) (= American Standard Code for Information Interchange) америка́нский станда́ртный код для обме́на информа́цией
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.