Disk archival techniques

I know I can do that, because I have. Back in the late '70s, at the University of Colorado, I took a computer hardware design course. It was very hands-on, and the term project, if you will, was to construct a small 4-bit computer from SSI/MSI TTL. (The most complex chips used were an ALU - 74181, I think it was - and some static RAM.) Not much memory space, 16 4-bit words, but fully functional within its design limitations. Of course, it doesn't help that most equipment manufacturers can't wire an RS232 connector and get it right (true almost regardless of your definition of "right" in this context). /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse at rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B