<>                       Not Equal to

 exp1 <> exp2

    The <> operator is a relational operator. If exp1 has a value
    different from that of exp2, the result of exp1 <> exp2 is -1;
    otherwise the result is 0. In IF statements, BASIC regards 0 as
    equivalent to FALSE and all nonzero values as equivalent to TRUE.

   exp1,exp2    Any numeric or string expression, but exp1 and exp2 must
                either both be numeric or both be strings; otherwise a
                Type Mismatch error occurs.