Re: Newbie question on table design.
Date: Thu, 03 May 2007 15:24:28 GMT
Message-ID: <M8n_h.6609$r77.1292_at_trndny08>
"paul c" <toledobythesea_at_oohay.ac> wrote in message
news:iUl_h.157550$aG1.36103_at_pd7urf3no...
> David Cressey wrote:
> > "Frank Hamersley" <terabitemightbe_at_bigpond.com> wrote in message
> > news:8jk_h.33197$M.16927_at_news-server.bigpond.net.au...
> >
> >>David Cressey wrote:
> >>
> >>>"-CELKO-" <jcelko212_at_earthlink.net> wrote in message
> >>>
> >>>>They are not called libraries; they are called "copy books" because
> >>>>that is exactly what they are -- text for cut and paste.
> >>>
> >>>I beg your pardon, but they *were* called "libraries" in TOPS-10/20
> >
> > COBOL
> >
> >>>circles. And they functioned like libraries.
> >>
> >>In CDC land we called 'em "Copy Decks" cos they were (originally) 80
> >>column punched card decks.
> >>I never thought of them as libraries per se as they were not object code
> >>- they were functional though :-)
> >>
> >>Cheers Frank.
> >>
> >>
> >
> > I know practically nothing of CDC culture, but quite a bit about DEC
> > culture, going way back. My impression of CDC culture, gleaned
indirectly
> > from what Niklaus Wirth had to say about the CDCmachines, is that CDC
> > culture discovered interactive development later than DEC culture did.
I'm
> > just about certain that IBM culture discovered interactive development
later
> > than DEC culture did. This is somewhat related to the topic at hand.
> > ...
>
> In the 1970's and even the 1980's, Dec terminals cost a fraction of
> IBM's. Some executives bought controllers that could connect the IBM
> channels to Dec VT's and such but they could expect to be summoned to
> the IBM district manager's office for tea and "career advice".
>
DEC Terminals (VT-05 through VT-200, etc.) are just the tip of the iceberg.
Although they were everywhere in DEC culture, they really weren't a centerpiece of it. You need to think processors: PDP-1 through PDP-11, VAX and Alpha. You need to think clients like Bolt Beranek & Newman, or MIT, or Stanford, of Carnegie Mellon. You need to think Debuggers like DDT, or languages like BLISS. You need to think operating systems like TOPS-10, Tenex, ITS, RSTS, RT, RSX, VMS.
You need to think DBMSes like TOPS-10/20 DBMS, PDP-11 DBMS , VAX DBMS, and Rdb VAX/VMS (also Rdb Eln, Rdb Unix).
There are important reasons why connecting a bunch of DEC terminals to an IBM system can be counterproductive, but they have nothing to do with database theory.
> p
Received on Thu May 03 2007 - 17:24:28 CEST