28 Dec
2018
28 Dec
'18
12:42 p.m.
Gentlemen of advanced years who can remember CDC, cradle of Cray.
Can you tell me which CDC computer type these three boards belonged to? It
is for labeling purposes in my personal museum.
https://postimg.cc/crJHv3Lt
https://postimg.cc/Z0HnYH4h
https://postimg.cc/6TtTNgs0
I am sure this will be easy for the right person. Many thanks!
peter
28 Dec
28 Dec
1:46 p.m.
The second one is a 6000 mainframe "cordwood" module. It should have a
two-letter module type code on the front.
The third looks like small bits cut from such a cordwood module (my wife has some earrings
made that way) but it may be they are actually complete items. If so, I don't
recognize them.
paul
On Dec 28, 2018, at 3:42 PM, Peter Van Peborgh via
cctech <cctech at classiccmp.org> wrote:
Gentlemen of advanced years who can remember CDC, cradle of Cray.
Can you tell me which CDC computer type these three boards belonged to? It
is for labeling purposes in my personal museum.
https://postimg.cc/crJHv3Lt
https://postimg.cc/Z0HnYH4h
https://postimg.cc/6TtTNgs0
I am sure this will be easy for the right person. Many thanks!
peter
29 Dec
29 Dec
10:47 a.m.
Statistically, it is more likely to be a 1700 module (a more common
machine). The front bracket is missing, which is the easy way to
distinguish the two types.
--
Will
On Fri, Dec 28, 2018 at 6:10 PM Paul Koning via cctalk
<cctalk at classiccmp.org> wrote:
The second one is a 6000 mainframe "cordwood" module. It should have a
two-letter module type code on the front.
The third looks like small bits cut from such a cordwood module (my wife has some
earrings made that way) but it may be they are actually complete items. If so, I
don't recognize them.
paul
On Dec 28, 2018, at 3:42 PM, Peter Van Peborgh
via cctech <cctech at classiccmp.org> wrote:
Gentlemen of advanced years who can remember CDC, cradle of Cray.
Can you tell me which CDC computer type these three boards belonged to? It
is for labeling purposes in my personal museum.
https://postimg.cc/crJHv3Lt
https://postimg.cc/Z0HnYH4h
https://postimg.cc/6TtTNgs0
I am sure this will be easy for the right person. Many thanks!
peter
11:10 a.m.
On 12/29/18 10:47 AM, William Donzelli via cctalk wrote:
Statistically, it is more likely to be a 1700 module
(a more common
machine). The front bracket is missing, which is the easy way to
distinguish the two types.
That's an interesting observation, but I'm not sure I'd agree with you.
While there were more 1700s in circulation, the sheer number of modules
used in 6000/Cyber machines and peripherals might tilt the balance the
other way.
--Chuck
11:21 a.m.
Don't let the (very few) online pictures of early 1700s (1704 and
1706) fool you - the things have a *lot* of modules when the options
are added. It might be that while the 6000 series followed the Cray
"simple/fewer" design philosophy, the 1700 line may not have.
--
Will
On Sat, Dec 29, 2018 at 2:10 PM Chuck Guzis via cctalk
<cctalk at classiccmp.org> wrote:
On 12/29/18 10:47 AM, William Donzelli via cctalk wrote:
Statistically, it is more likely to be a 1700
module (a more common
machine). The front bracket is missing, which is the easy way to
distinguish the two types.
That's an interesting observation, but I'm not sure I'd agree with you.
While there were more 1700s in circulation, the sheer number of modules
used in 6000/Cyber machines and peripherals might tilt the balance the
other way.
--Chuck
12:06 p.m.
On 12/29/18 10:47 AM, William Donzelli via cctalk wrote:
Statistically, it is more likely to be a 1700 module
(a more common
machine). The front bracket is missing, which is the easy way to
distinguish the two types.
Don't know what the 1700 count was, but each 6600 had about 6,000
modules--and then there were the 6400s, 6500s and 6700s, as well as ECS
controllers...not to mention the CYBER 70 series...
--Chuck
12:34 p.m.
I think the Cyber 70s used the later modules (the multilayer and/or IC things).
--
Will
On Sat, Dec 29, 2018 at 3:06 PM Chuck Guzis via cctalk
<cctalk at classiccmp.org> wrote:
On 12/29/18 10:47 AM, William Donzelli via cctalk wrote:
Statistically, it is more likely to be a 1700
module (a more common
machine). The front bracket is missing, which is the easy way to
distinguish the two types.
Don't know what the 1700 count was, but each 6600 had about 6,000
modules--and then there were the 6400s, 6500s and 6700s, as well as ECS
controllers...not to mention the CYBER 70 series...
--Chuck
1:28 p.m.
On 12/29/18 12:34 PM, William Donzelli wrote:
I think the Cyber 70s used the later modules (the
multilayer and/or IC things).
Nope, the Cyber 70s were very minor upgrades to the 6000 series. A
bunch of QSEs were made standard features, such as CMU (lower Cyber),
CEJ, ILR, etc. Same cordwood modules, though. Blue-glass and fake wood
skins, mostly. I witnessed a 6400 being upgraded to a Cyber 73; most of
it was cosmetic.
The 170s were quite different, however.
--Chuck
2:33 p.m.
Were the brackets on the 1700 cordwood modules shorter than the 6000
series? I've got a switch module here in a desk drawer--it's a
3-position switch labeled A O C and is illuminated with a couple of reed
relays on the PCB. PCB size is the same as 6000, as is the connector,
but bracket is definitely shorter. Top PCB is labeled E03A; bottom is E04A.
I never did discover what it belonged to.
--Chuck
28 Dec
28 Dec
2:22 p.m.
On 12/28/18 12:42 PM, Peter Van Peborgh via cctech wrote:
Gentlemen of advanced years who can remember CDC,
cradle of Cray.
Can you tell me which CDC computer type these three boards belonged to? It
is for labeling purposes in my personal museum.
https://postimg.cc/crJHv3Lt
https://postimg.cc/Z0HnYH4h
https://postimg.cc/6TtTNgs0
I am sure this will be easy for the right person. Many thanks!
peter
The second one is a 6000-series "cordwood" module.
--Chuck
1952
days inactive
1953
days old
9 comments
4 participants
participants (4)
-
cclist＠sydex.com -
paulkoning＠comcast.net -
peter＠vanpeborgh.eu -
wdonzelli＠gmail.com