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Re: RE: Difference Between DBMS/RDBMS

From: Alexandre Gorbatchev <alexandre.gorbatchev_at_avermann.de>
Date: Tue, 25 Jun 2002 07:58:31 -0800
Message-ID: <F001.00486CF0.20020625075831@fatcity.com>


My Z-80 based PC had 64K (useful only 48). That was the standard architecture for Z80 4.77MHz 8-)

--
Alexandre
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
Sent: Tuesday, June 25, 2002 5:13 PM



> Erm, programmed at college on something called a Sinclair ZX80 Spectrum 1K
> ram !!!!!!
>
>
> -----Original Message-----
> Sent: 25 June 2002 15:58
> To: Multiple recipients of list ORACLE-L
>
>
> 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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> --
> Author: Joe Testa
> INET: jtesta_at_dmc-it.com
>
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> Author: Mercadante, Thomas F
> INET: NDATFM_at_labor.state.ny.us
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Alexandre Gorbatchev INET: alexandre.gorbatchev_at_avermann.de Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Received on Tue Jun 25 2002 - 10:58:31 CDT

Original text of this message

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