From cisin@xenosoft.com Tue May 18 19:01:55 1999
From: cisin@xenosoft.com
To: test-drb@ccmp.vtda.org
Subject: Are IBM PCs classic?
Date: Tue, 18 May 1999 19:01:55 +0000
Message-ID: <Pine.GSO.4.05.9905181642500.16216-100000@lanshark.lanminds.com>
In-Reply-To: <m10jsNs-000IyQC@p850ug1>
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> > the original IBM Personal Computer, introduced in 1981, with a 62.5 watt
>=20
> {\pedantic Wasn't it a 63.5W PSU}
One of the first PCs that I got came from IBM with a black power supply
with a white switch (1.2*S/H).  Then they immediately switched to the
silver colored one with the red switch.  If I believe the Tech Ref and the
sticker on the supply, then there was a slight change increasing the 5V
power and decreasing the 12V.


> > power supply, Type 1 or 2 motherboard, INTEL 8088 clocked at 4.77 MHz, fo=
ur
> > ROM sockets, five 8-bit expansion adapter slots, two full height diskette

As long as we're being unnecessarily picky (-:   FIVE ROMS, SIX ROM
sockets! One for the BIOS, plus four for BASIC, plus an extra.

Unconfirmed story:  The IBM engineers were worried that MICROS~1 would
fail to squeeze the BASIC into the 32K (32768 Bytes) that MICROS~1 had
said would be needed for it, so they provided an extra ROM socket for
overflow.  The MICROS~1 programmers were a little offended that IBM hadn't
trusted them on the accuracy of their estimate, so, when they came in a
little under, they padded out the BASIC with a few incomplete commands to
bring the total to an EXACT 32768.

--
Grumpy Ol' Fred        cisin(a)xenosoft.com
<A HREF=3D "http://www.xenosoft.com/dogears" >DogEars</A>

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