[TUHS] Re: Has this been discussed on-list? How Unix changed Software.

Doug, Larry et al, Thanks very much for the history - unaware of those stories/ facts. I’ve scanned the 1989 Miller et al paper, will read properly soon. The legacy of that paper is the extensive automatic testing now commonplace in large Open Software projects. I wasn't clear in what I wrote. Have been immersed in early papers of teaching the kernel at UNSW :( Reminds on this list precise terms matter: that “Unix” / UNIX (tm) and "the kernel" (+ version) are very different. I meant the V5 / V6 kernel was ‘known defect free', hadn’t thought of Userland / utilities & libraries :( From what I’ve read: distribution tapes, pre-USG, were created from the current copy of ’the system’ - not sure which machine that was, presumably one controlled by Ken. Is that a reasonable statement, the kernel, pre-USG, had zero (known) Technical Debt when shipped? I’ve read that Ken wrote the kernel with an eye to it being a coding exemplar. Deliberately wrote consistent, high quality code. Is that another mis-interpretation of mine? regards steve j -- Steve Jenkin, IT Systems and Design 0412 786 915 (+61 412 786 915) PO Box 38, Kippax ACT 2615, AUSTRALIA mailto:sjenkin@canb.auug.org.au http://members.tip.net.au/~sjenkin