Dear Jerry, I have been looking for a copy of Tek SPS for some time. Is there now a version that runs on normal PC's? or is it still only hosted on PDP 11/35's etc.? I programmed in SPS for 10 years and was quite accomplished with it.? I love its graphics and data array handling capability. The High and low level support packages made driver construction a worthwhile effort as well. Sincerely, Bob Forgey Addy, WA Bob Forgey ADDY, WA