> Russel: > > I do not think You would believe some of the things that were done early = on. I don't know why you'd think that :-). I didn't mean to evince any great surprise at the achievement. Just passed it on as being an impressive but believable example. One of my treasures is a book titled "Faster than Thought. A symposium on digital computing machines." 8+ major any many minor digital computers and the general field are discuss= ed. My copy, ex California Federal Telecommunications lab, is 1955. 1st printed in 1953. Dr A.M. Turing FRS wrote one of the papers - dealing with the application of computers to games, with chess playing example given. 1953! I've seen a full basketball scoring and game control system written in 256 bytes of fusible link PROM, using an SC/MP processor. In 1977 I used a Motorola 6802 (D2 kit!) to read blocks of data from an 8 track tape drive (ONLY JUST able at 4 MHz clock) and pass them to an HP9831 "Mini Computer" using HPIB. (Subsequently adopted for use by then NZPO). Marine RADAR was first demonstrated by a German in Germany in 1903. Fortunately, perhaps, nobody got the point. Much more ... I can well believe your commendable scope / TV display - sounds like you had fun. Those were the days ... :-) Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .