6 Feb
2015
6 Feb
'15
7:41 p.m.
Ok.. So Engadget wrote this article claiming Dr. Mark Dean was chief engineer of the
12-person team that designed the original IBM PC in the early '80s
http://www.engadget.com/2015/02/06/mark-dean-pc-pioneer/
I had always thought it was Lewis Eggebrecht.
I know there were three teams and one of them won and it was Eggebrecht's team.
Did Dr. Marc Dean work on Eggebrecht's team or did he run one of the other ones?
6 Feb
6 Feb
9:17 p.m.
I knew Marc from the System/23 Datamaster project (which I also worked on). I was still
working
on some aspects of System/23 when the PC was born. Dr. David Bradley (who wrote the
original
BIOS) worked in the office across the hall from mine. I knew that the PC project was
going on
but didn't know all of the players at the very start so I can't recall where Marc
fit in relation to
Lew. However, Lew was a manger and Marc was an engineer, so I don't see the
statements
as being incompatible.
BTW, Marc was the last person I worked for at IBM before I left. At that point he was an
IBM VP
and an IBM Fellow.
TTFN - Guy
On Feb 6, 2015, at 11:41 AM, Christian Liendo
<christian_liendo at yahoo.com> wrote:
Ok.. So Engadget wrote this article claiming Dr. Mark Dean was chief engineer of the
12-person team that designed the original IBM PC in the early '80s
http://www.engadget.com/2015/02/06/mark-dean-pc-pioneer/
I had always thought it was Lewis Eggebrecht.
I know there were three teams and one of them won and it was Eggebrecht's team.
Did Dr. Marc Dean work on Eggebrecht's team or did he run one of the other ones?
9:46 p.m.
From: Guy Sotomayor <ggs at shiresoft.com>
I knew Marc from the System/23 Datamaster project (which I also worked on).
Dr. David Bradley (who wrote the original BIOS) worked in the office across the hall from
mine.
Wow cool.
However, Lew was a manger and Marc was an engineer, so
I don't see the statements as being incompatible.
There are sources that list him as the chief engineer
http://books.google.com/books?id=Pq3POofPsBEC&lpg=PA62&pg=PA33#v=on…
http://www.theregister.co.uk/2011/08/12/ibm_pc_30_anniversary/
http://www.thocp.net/biographies/estridge_don.html
This is why I ask stuff on here because there has been many times where public info is
wrong and it has been discussed here.
9:55 p.m.
On Feb 6, 2015, at 1:46 PM, Christian Liendo
<christian_liendo at yahoo.com> wrote:
Actually, the "leaky old warehouse" was IBM Building 203. While I was there we
had the following happen:
Flood in the parking lot (feet of water...which is impressive since this is in FL and
"high" ground is considered 5' above sea level)
Fire in the cafeteria (emergency lights failed) and the whole building lost power and was
full of smoke. Given that there were few windows it was a cave trying to get out...the
only reason that no one died was that the fire while smokey didn't expand very far.
Plane crash landed in the parking lot (the Boca Raton airport was across the road)
Train derailed and dumped 3-4 cars worth of gravel in to the parking lot
The last one occurred after someone jokingly said "We've had just about every
imaginable disaster except a train crash". I think it was two weeks later that the
train derailed. No one joked about disasters at 203 after that.
However, 203 was absolutely the worst building I ever worked at while I was at IBM.
From: Guy Sotomayor <ggs at shiresoft.com>
I knew Marc from the System/23 Datamaster project (which I also worked on).
Dr. David Bradley (who wrote the original BIOS) worked in the office across the hall from
mine.
Wow cool.
However, Lew was a manger and Marc was an
engineer, so I don't see the statements as being incompatible.
There are sources that list him as the chief engineer
http://books.google.com/books?id=Pq3POofPsBEC&lpg=PA62&pg=PA33#v=on…
http://www.theregister.co.uk/2011/08/12/ibm_pc_30_anniversary/
http://www.thocp.net/biographies/estridge_don.html
This is why I ask stuff on here because there has been many times where public info is
wrong and it has been discussed here.
I think you're mixing Lew with Don Estridge. Don's team (of which Lew and Marc
were part) were the "winning" team. The other teams were *not* in Boca as I
recall.
I believe it was Marc who designed the main board. Lew probably had more overall
responsibilities.
TTFN - Guy
10:10 p.m.
From: Guy Sotomayor <ggs at shiresoft.com>
To: Christian Liendo <christian_liendo at yahoo.com>; General Discussion: On-Topic
and Off-Topic Posts <cctalk at classiccmp.org>
Sent: Friday, February 6, 2015 4:55 PM
Subject: Re: Did Dr. Marc Dean Design the IBM PC or was it Lewis Eggebrecht
From: Guy Sotomayor <ggs at shiresoft.com>> I
think you're mixing Lew with Don Estridge. Don's team (of which Lew and Marc were
part) were the "winning" team. The other teams were *not* in Boca as I recall.
From PC News:
http://books.google.com/books?id=Pq3POofPsBEC&lpg=PA62&pg=PA33#v=on…
"Lew Eggebrecht was the Chief Architect for the IBM PC. He picked all the parts and
put them together"
From The Register
http://www.theregister.co.uk/2011/08/12/ibm_pc_30_anniversary/
"A 12-strong team was assembled under Don Estridge, the Development Director of the
project, codenamed 'Chess'. Lewis Eggebrecht was brought on board as Chief
Designer."
History of the Personal Computer
http://archive.org/stream/A_History_of_the_Personal_Computer/eBook09_djvu.t…
"Lewis Eggebrecht was a principal in the systems engineering design"
So. I mean. I believe you, just a lot of people point to him
10:15 p.m.
New subject: IBM 5322 WAS : Did Dr. Marc Dean Design the IBM PC or was it Lewis Eggebrecht
I knew Marc from the System/23 Datamaster project
(which I also worked
on). I was still working on some aspects of System/23 when the PC was
born.
Guy,
That is pretty cool. So now I know if you don't mind I am going to pick your
brain a bit: Were there two revisions of the 5322?
I ask because I have two 5322s and while very similar they differ in at
least two areas: The older model seems to have a linear PSU and socketted
chips vs. the newer one with switching PSU and soldered in chips. Just
wondering. Thanks.
-Ali
10:17 p.m.
New subject: IBM 5322 WAS : Did Dr. Marc Dean Design the IBM PC or was it Lewis Eggebrecht
On Feb 6, 2015, at 2:15 PM, Ali <cctalk at
fahimi.net> wrote:
Yea, there were lots of under the radar changes especially early on as things got
figured out. The original, original PC had 16KB soldered down and then the next
48KB was in sockets. I think once they figured out that most folks needed more
RAM, they just populated 64KB and did away with the sockets.
TTFN - GUy
I knew Marc from the System/23 Datamaster project
(which I also worked
on). I was still working on some aspects of System/23 when the PC was
born.
Guy,
That is pretty cool. So now I know if you don't mind I am going to pick your
brain a bit: Were there two revisions of the 5322?
I ask because I have two 5322s and while very similar they differ in at
least two areas: The older model seems to have a linear PSU and socketted
chips vs. the newer one with switching PSU and soldered in chips. Just
wondering. Thanks.
3615
days inactive
3615
days old
6 comments
3 participants
participants (3)
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cctalk＠fahimi.net -
christian_liendo＠yahoo.com -
ggs＠shiresoft.com