资料来源 : Free On-Line Dictionary of Computing

PS-ALGOL
     
        Persistent ALGOL.  ca 1981, released 1985.  A derivative of
        S-ALGOL.  Database capability derived from the longevity of
        data.  "The PS- Algol Reference Manual", TR PPR-12-85, CS
        Dept, U Glasgow 1985.  IBM PC version available from CS Dept,
        U Strathclyde, Glasgow.