> Yes, there are uses for 64 bit address space, just as a 128 bit address > space would enable use to tackle unthinkable problems.
I do not think a "128 bit address space" computer will ever exist, at least not in the silicon technologies that we are talking about. Just to take advantage of a 64-bit address space you would probably have to have all of the disks ever made put together into one system. For a processor to simply touch each byte of a 64-bit address space, running at 4 GHz would take about 4 billion seconds (or about 126 years). I think I read someplace that 128 bits would allow you to address every Proton and neutron in the known universe, but I doubt that (a little). While 8, 16 and even 32 bits caused most programmers some pain from time to time, I think 64 bits has enough address space to keep even Dr. Knuth happy for a while. md _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
