misc. topics questions & answers
1. differences between mac, windows, unix
macos (up until osx, anyhow) was single-user and (technically) did not have multitasking capabilites (some people will try to tell you that the mac has "cooperative multitasking", but i wouldn't even cosider that multitasking, since it requires each running program to voluntarily pause and wait for others to run).
windows, starting with win95 (*) is a single-user, multasking os. although newer versions like xp and 2000 support file permissions via efs, the do not allow multiple users to be logged in at once. (news: win 2003 support this)
unix is 100% multi-user and multitasking, and is therefore (why therefore?) inherently stable, secure, and confusing. once you go unix, though, you'll never go back! unix (in all caps) was developed by at&t waaaay back, unix (no caps) usually refers to a family of operating systems (including the free-but-overrated linux) that are based on unix. solaris, bsd, osf, sco, and tru64 are all flavors of unix.
2．how does windows programming differ from dos programming?
windows – gui dos - cui.
windows - 32bit o.s dos is 16 bit o.s.
