Oh don't get me wrong; I got my start on that machine too. I still have the manual on my bookshelf - and as a matter of fact I'm having this print framed at th

Oh don't get me wrong; I got my start on that machine too. I still have the manual on my bookshelf - and as a matter of fact I'm having this print framed at the moment: http://www.alisoneldred.com/john-harris/fine-art-prints-1/science-fiction-3/2508-zx81-sinclair-manual-cover/ http://www.alisoneldred.com/john-harris/fine-art-prints-1/sc... Just as you say, it feels as if I'd need another lifetime to get a comprehensive understanding of a single modern machine.