Wang Basic (anyone else remember Wang computers?) in 64K of ram
rather than rewrite the system when we maxed out on allowable
datafiles, the manager of the system (can you say desperate for job
security?) found a product which emulated the Wang machine on a VAX but
allowed you to expand the number of datafiles. Still limited to 64K of
memory though.
- dgoulet_at_vicr.com wrote:
> Tom,
>
> As I recall DB2 on a PC came about way back in the dark days of
> the 8080
> processor and DOS (no version) somewhere around 1980 I believe. I
> seem to
> vaguely remember running it on a very old (now a days) predecessor of
> the
> laptop. If memory is serving I believe it was called an Osborne?
> RDB was
> offered on the IBM mainframe and there was a VAX version that I
> remember playing
> with as well.
>
> Yeah, it's good to be old and reflect on the twists & turns we
> went through
> to make things work. Anyone remember programming with less than 1MB
> of ram? I
> remember trying to make things work on 16K.
>
> Dick Goulet
> Human memory is fragile, thank GOD!
>
> ____________________Reply Separator____________________
> Author: "Mercadante; Thomas F" <NDATFM_at_labor.state.ny.us>
> Date: 6/25/2002 6:08 AM
>
> Oh you bunch of young whipper-snappers!
>
> A long time ago in a place far-away, we started with simple File
> Systems.
> Then came ISAM file systems.
> These begate DBMS systems. Note there was no 'R' in original DBMS
> systems.
> Some of these were simply an extention to ISAM files that allowed
> (and
> demanded) a more formalized collection of files. In these files,
> there were
> tables and indexes and primary keys. I remember these as
> "Hierarchical
> Database Systems". Still no such thing as foreign keys.
>
> Finally, I believe, DEC came out with the RBMS system which was (I
> know I
> will be corrected on this) one of the first Relational Database
> Managment
> Systems to be made available for large systems. (I have no knowledge
> of IBM
> products - anybody? When did DB2 make itself known?).
>
> On PC's there was also something called RDB I think.
>
> See, its good to be old!
>
> Tom Mercadante
> Oracle Certified Professional
>
>
> -----Original Message-----
> Sent: Tuesday, June 25, 2002 8:24 AM
> To: Multiple recipients of list ORACLE-L
>
>
> i give up the R, is that the difference?
>
> joe
>
>
> Santosh Varma wrote:
>
> > could any body point me the difference(s) between DBMS and RDBMS ??
>
> > because in DBMS also as in RDBMS, we can related two or more
> > tables..if a column exists in another table for relation ??
> >
> > Thanks and regards,
> >
> > Santosh
> >
>
>
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Received on Tue Jun 25 2002 - 10:33:42 CDT