 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
What actually makes that "chattering" sound that old tape systems make?
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 09:26:25 +0000, Invisible <voi### [at] dev null> wrote:
>What actually makes that "chattering" sound that old tape systems make?
Are you talking about magnetic tape or paper tape?
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
> On Fri, 19 Dec 2008 09:26:25 +0000, Invisible <voi### [at] devnull> wrote:
>
>> What actually makes that "chattering" sound that old tape systems make?
>
> Are you talking about magnetic tape or paper tape?
HAHAHAHA!
Good god man, magnetic! I've never *seen* paper tape, except in a museum...
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 09:56:05 +0000, Invisible <voi### [at] devnull> wrote:
>Stephen wrote:
>> On Fri, 19 Dec 2008 09:26:25 +0000, Invisible <voi### [at] devnull> wrote:
>>
>>> What actually makes that "chattering" sound that old tape systems make?
>>
>> Are you talking about magnetic tape or paper tape?
>
>HAHAHAHA!
>
>Good god man, magnetic! I've never *seen* paper tape, except in a museum...
Just asking! You have a wide range of interests.
The chattering is probably the tensioning system and the tape drive starting and
stopping as the data is read.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> What actually makes that "chattering" sound that old tape systems make?
Lots of complex mechanical parts in a tape playback system (clutches,
pulleys, idler gears, speed controllers, brakes etc) , the main "problem" is
that you need to control the speed of the tape during playback and recording
to a very accurate value. You also need to drive the two spools
appropiately to avoid the tape getting all bunched up or snapping. You need
to do this correctly for vastly different radii of tape on each spool (so
you can't just drive the spools at a fixed or calculated rate), plus during
fast forward and reverse.
I imagine the noise you are referring to could be anything within the whole
drive system within the tape player.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
>>> Are you talking about magnetic tape or paper tape?
>> HAHAHAHA!
>>
>> Good god man, magnetic! I've never *seen* paper tape, except in a museum...
>
> Just asking! You have a wide range of interests.
You're definitely showing your age. ;-) Paper tapes? Good Lord...
> The chattering is probably the tensioning system and the tape drive starting and
> stopping as the data is read.
Right. And it's so loud because the tape itself makes a good speaker cone?
(FWIW, the old tape system was pretty silent. This new one is quite noisey.)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
scott wrote:
>> What actually makes that "chattering" sound that old tape systems make?
>
> Lots of complex mechanical parts in a tape playback system (clutches,
> pulleys, idler gears, speed controllers, brakes etc) , the main
> "problem" is that you need to control the speed of the tape during
> playback and recording to a very accurate value. You also need to drive
> the two spools appropiately to avoid the tape getting all bunched up or
> snapping. You need to do this correctly for vastly different radii of
> tape on each spool (so you can't just drive the spools at a fixed or
> calculated rate), plus during fast forward and reverse.
>
> I imagine the noise you are referring to could be anything within the
> whole drive system within the tape player.
Our old DDS tape system was pretty quiet. Almost inaudible over the roar
of the air conditioning system and the cooling fans and harddrives of 5
servers.
The LTO1 tape robot we got after that was quite quiet. Reading from tape
was silent. Moving the caracel was audible; you could hear the cars go
round inside.
Our new LTO3 tape robot is... very loud. The robot itself makes all
mannar of grating and grinding noises as it works. (I checked the manual
several times to see if there's any restraining bolts you're supposed to
remove after transit or anything, but no...)
The tape *drive* itself is comparatively quiet. But when it first loads
the tape, and occasionally thereafter, it makes a "chattering" noise
which sounds *exactly* like the 1960s reel-to-reel tape streamers you
see in old movies.
I'm just wondering exactly what part of it makes the noise. It seems
logical that it would be some part of the tape drive system; I guess a
loop of taught tape makes a good sound board...
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 10:37:26 +0000, Invisible <voi### [at] devnull> wrote:
>>>> Are you talking about magnetic tape or paper tape?
>>> HAHAHAHA!
>>>
>>> Good god man, magnetic! I've never *seen* paper tape, except in a museum...
>>
>> Just asking! You have a wide range of interests.
>
>You're definitely showing your age. ;-) Paper tapes? Good Lord...
>
And card readers ;)
>> The chattering is probably the tensioning system and the tape drive starting and
>> stopping as the data is read.
>
>Right. And it's so loud because the tape itself makes a good speaker cone?
>
>(FWIW, the old tape system was pretty silent. This new one is quite noisey.)
That does not sound good. I'd check with the supplier.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 10:41:31 +0000, Invisible <voi### [at] devnull> wrote:
>
>I'm just wondering exactly what part of it makes the noise. It seems
>logical that it would be some part of the tape drive system; I guess a
>loop of taught tape makes a good sound board...
Use a small screwdriver as a stethoscope. Press the handle against the cartilage
in front of auditory canal, closing the ear and place the blade against the tape
drive at various places to see if you can identify where the noise is coming
from.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
> Use a small screwdriver as a stethoscope. Press the handle against the cartilage
> in front of auditory canal, closing the ear and place the blade against the tape
> drive at various places to see if you can identify where the noise is coming
> from.
*Clearly* you've done this a great many times before. ;-)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 11:06:43 +0000, Invisible <voi### [at] devnull> wrote:
>Stephen wrote:
>
>> Use a small screwdriver as a stethoscope. Press the handle against the cartilage
>> in front of auditory canal, closing the ear and place the blade against the tape
>> drive at various places to see if you can identify where the noise is coming
>> from.
>
>*Clearly* you've done this a great many times before. ;-)
Just one of the tricks of the trade ;)
Another one is, we have heat receptors just below the lower lip that can
distinguish temperature differences better than our fingertips. Putting
components (close to) there can sometimes tell you if one is overheating.
In a similar vein, if you are in a building that is on fire (maybe you are
trying to rescue your mother's electric drill or you favourite Haskell book) and
your earlobes start to tingle. Then it is really time to get out.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
>> *Clearly* you've done this a great many times before. ;-)
>
> Just one of the tricks of the trade ;)
Any which trade would that be then?
> Another one is, we have heat receptors just below the lower lip that can
> distinguish temperature differences better than our fingertips. Putting
> components (close to) there can sometimes tell you if one is overheating.
Heh. I've got a laptop which I *think* might have overheated. But can I
find a reading for the core temperature?? What do *you* think? :-P
> In a similar vein, if you are in a building that is on fire (maybe you are
> trying to rescue your mother's electric drill or you favourite Haskell book) and
> your earlobes start to tingle. Then it is really time to get out.
Yeah. Because the building on fire would merely be a mild suggestion. :-D
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 11:40:00 +0000, Invisible <voi### [at] devnull> wrote:
>>> *Clearly* you've done this a great many times before. ;-)
>>
>> Just one of the tricks of the trade ;)
>
>Any which trade would that be then?
>
Electronic Engineering. I was a maintenance engineer for 26 years.
>> Another one is, we have heat receptors just below the lower lip that can
>> distinguish temperature differences better than our fingertips. Putting
>> components (close to) there can sometimes tell you if one is overheating.
>
>Heh. I've got a laptop which I *think* might have overheated. But can I
>find a reading for the core temperature?? What do *you* think? :-P
>
Have you tried speedfan?
http://www.almico.com/speedfan.php
My laptop is running at 85 deg C
>> In a similar vein, if you are in a building that is on fire (maybe you are
>> trying to rescue your mother's electric drill or you favourite Haskell book) and
>> your earlobes start to tingle. Then it is really time to get out.
>
>Yeah. Because the building on fire would merely be a mild suggestion. :-D
Sometimes there are situations where you put yourself in danger. Real fires are
not like Hollywood fires. :)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Stephen" <mcavoysAT@aolDOTcom> wrote in message
news:tetmk49e2gmdse9c1uk1bm1mglkak6utbe@4ax.com...
> The chattering is probably the tensioning system and the tape drive
> starting and
> stopping as the data is read.
If the tape has got alot of mileage on it perhaps it's what I used to call
tape fatigue. Take a look at the edges of the tape. Small ripples?
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 08:20:59 -0400, "Jim Holsenback" <jho### [at] hotmailcom>
wrote:
>
>"Stephen" <mcavoysAT@aolDOTcom> wrote in message
>news:tetmk49e2gmdse9c1uk1bm1mglkak6utbe@4ax.com...
>> The chattering is probably the tensioning system and the tape drive
>> starting and
>> stopping as the data is read.
>
>If the tape has got alot of mileage on it perhaps it's what I used to call
>tape fatigue. Take a look at the edges of the tape. Small ripples?
>
Yes, when faultfinding (UK usage) it is a good idea to use all of your senses.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
> In a similar vein, if you are in a building that is on fire (maybe you are
> trying to rescue your mother's electric drill or you favourite Haskell book) and
> your earlobes start to tingle. Then it is really time to get out.
I'm curious... what does tingling earlobes signify?
--
~Mike
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 07:10:07 -0600, Mike Raiford <"m[raiford]!at"@gmail.com>
wrote:
>Stephen wrote:
>
>> In a similar vein, if you are in a building that is on fire (maybe you are
>> trying to rescue your mother's electric drill or you favourite Haskell book) and
>> your earlobes start to tingle. Then it is really time to get out.
>
>I'm curious... what does tingling earlobes signify?
It is too hot :)
Also the tip of your nose tingles as well.
Tips I picked up on fire fighting courses, when I worked off-shore.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
> On Fri, 19 Dec 2008 07:10:07 -0600, Mike Raiford <"m[raiford]!at"@gmail.com>
> wrote:
>
>> Stephen wrote:
>>
>>> In a similar vein, if you are in a building that is on fire (maybe you are
>>> trying to rescue your mother's electric drill or you favourite Haskell book) and
>>> your earlobes start to tingle. Then it is really time to get out.
>> I'm curious... what does tingling earlobes signify?
>
> It is too hot :)
> Also the tip of your nose tingles as well.
>
> Tips I picked up on fire fighting courses, when I worked off-shore.
Huh. And here I was thinking it was because a wind might be blowing by
you as a backdraft forms.
--
~Mike
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Mike Raiford wrote:
> Huh. And here I was thinking it was because a wind might be blowing by
> you as a backdraft forms.
Weee....
http://stilbild.nu/backdraft.jpg
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 07:46:31 -0600, Mike Raiford <"m[raiford]!at"@gmail.com>
wrote:
>Stephen wrote:
>> On Fri, 19 Dec 2008 07:10:07 -0600, Mike Raiford <"m[raiford]!at"@gmail.com>
>> wrote:
>>
>>> Stephen wrote:
>>>
>>>> In a similar vein, if you are in a building that is on fire (maybe you are
>>>> trying to rescue your mother's electric drill or you favourite Haskell book) and
>>>> your earlobes start to tingle. Then it is really time to get out.
>>> I'm curious... what does tingling earlobes signify?
>>
>> It is too hot :)
>> Also the tip of your nose tingles as well.
>>
>> Tips I picked up on fire fighting courses, when I worked off-shore.
>
>Huh. And here I was thinking it was because a wind might be blowing by
>you as a backdraft forms.
I don't know if it's radiated or ambient heat that causes it but it is a
distinctive feeling.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 13:53:47 +0000, Invisible <voi### [at] devnull> wrote:
>Mike Raiford wrote:
>
>> Huh. And here I was thinking it was because a wind might be blowing by
>> you as a backdraft forms.
>
>Weee....
>
>http://stilbild.nu/backdraft.jpg
Google BLEVE - boiling liquid expanding vapor explosion
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
> paper tape?
Are these the thingies with holes in them, besides with holy cards?
-Aero
Post a reply to this message
|
|
| |
| |
|
|
From: Jim Holsenback
Subject: Re: Random question on a friday morning
Date: 19 Dec 2008 12:10:15
Message: <494bd577@news.povray.org>
|
|
|
| |
| |
|
|
"Stephen" <mcavoysAT@aolDOTcom> wrote in message
news:civmk4ljsohu1e0pfsrevu1anv9ocq74um@4ax.com...
> Use a small screwdriver as a stethoscope. Press the handle against the
> cartilage
> in front of auditory canal, closing the ear and place the blade against
> the tape
> drive at various places to see if you can identify where the noise is
> coming
> from.
Haha ... works for tracking down engine noises too!
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 19:02:13 +0200, Eero Ahonen
<aer### [at] removethiszbxtnetinvalid> wrote:
>Stephen wrote:
>> paper tape?
>
>Are these the thingies with holes in them, besides with holy cards?
>
Round holes for the tape and rectangular ones for the cards. As if you didn't
know ;)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 13:10:20 -0400, "Jim Holsenback" <jho### [at] hotmailcom>
wrote:
>
>Haha ... works for tracking down engine noises too!
Guess where I got the idea? :)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen wrote:
>
> Round holes for the tape and rectangular ones for the cards. As if you didn't
> know ;)
I was wondering if there's two types of paper tapes, wanted to make sure
I did think the right thing (possible language differences, you know).
It's been something like 10-15 years since I've seen such tape and 6,5
years (June 2002, I guess it was 18th) since I've seen such card. I did
remember that the holes on the tape are round, but didn't that the ones
on cards are rectangular.
And don't mention I'm getting old(er)! I know that already, I just had
my 27th birthday ~week ago.
-Aero
Post a reply to this message
|
|
| |
| |
|
|
From: Mike Raiford
Subject: Re: Random question on a friday morning
Date: 19 Dec 2008 12:54:58
Message: <494bdff2@news.povray.org>
|
|
|
| |
| |
|
|
Eero Ahonen wrote:
> And don't mention I'm getting old(er)! I know that already, I just had
> my 27th birthday ~week ago.
pshhh.. A young whippersnapper..
--
~Mike
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen <mcavoysAT@aolDOTcom> wrote:
> On Fri, 19 Dec 2008 19:02:13 +0200, Eero Ahonen
> <aer### [at] removethiszbxtnetinvalid> wrote:
>
> >Stephen wrote:
> >> paper tape?
> >
> >Are these the thingies with holes in them, besides with holy cards?
> >
>
> Round holes for the tape and rectangular ones for the cards. As if you didn't
> know ;)
> --
>
> Regards
> Stephen
IBM also made a 96 column card with round holes for their system/3 back in the
70's
I wrote a driver for the IBM 1017 paper tape reader on an ibm/370 system, also
in the 70's. The reader was already obsolete, so IBM didn't support it on our
system. It was kind of fun to write the code, but overall it turned out to be
a PITA.
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Eero Ahonen <aer### [at] removethiszbxtnetinvalid> wrote:
> Stephen wrote:
> >
> > Round holes for the tape and rectangular ones for the cards. As if you didn't
> > know ;)
>
> I was wondering if there's two types of paper tapes, wanted to make sure
> I did think the right thing (possible language differences, you know).
>
> It's been something like 10-15 years since I've seen such tape and 6,5
> years (June 2002, I guess it was 18th) since I've seen such card. I did
> remember that the holes on the tape are round, but didn't that the ones
> on cards are rectangular.
>
> And don't mention I'm getting old(er)! I know that already, I just had
> my 27th birthday ~week ago.
>
> -Aero
I think there were a couple of different sizes of tape. Some earlier tape was 6
holes wide, the tape I worked with was a newer 7 holes wide. I still have a box
of paper cards in my garage. They make good bookmarks.
You're barely out of diapers yet, my birthday was a couple of weeks ago and
your still several years short of half my age.
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 13:32:49 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>
>IBM also made a 96 column card with round holes for their system/3 back in the
>70's
>
>I wrote a driver for the IBM 1017 paper tape reader on an ibm/370 system, also
>in the 70's. The reader was already obsolete, so IBM didn't support it on our
>system. It was kind of fun to write the code, but overall it turned out to be
>a PITA.
When I worked for Burroughs in the mid 70's they too made 96 column card
readers/printers but they had rectangular holes. IIRC the 80 column cards were
rectangular too.
I remember taking a high speed tape reader to bits once. I would like to say
that I managed to put it back together but I can't. Do you remember the golf
ball printer heads?
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 13:46:06 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>
>You're barely out of diapers yet, my birthday was a couple of weeks ago and
>your still several years short of half my age.
LOL 1898 DOB?
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen <mcavoysAT@aolDOTcom> wrote:
> On Fri, 19 Dec 2008 13:32:49 EST, "Clarence1898" <cla### [at] comcastnet>
> wrote:
>
> >
> >IBM also made a 96 column card with round holes for their system/3 back in the
> >70's
> >
> >I wrote a driver for the IBM 1017 paper tape reader on an ibm/370 system, also
> >in the 70's. The reader was already obsolete, so IBM didn't support it on our
> >system. It was kind of fun to write the code, but overall it turned out to be
> >a PITA.
>
> When I worked for Burroughs in the mid 70's they too made 96 column card
> readers/printers but they had rectangular holes. IIRC the 80 column cards were
> rectangular too.
>
> I remember taking a high speed tape reader to bits once. I would like to say
> that I managed to put it back together but I can't. Do you remember the golf
> ball printer heads?
>
> --
>
> Regards
> Stephen
Afraid so. The IBM 360's used the 1052 typewriter for a system console. The
ce's loved them. When an internal drive belt broke, they had to disassemble
half the typewriter to install a new belt. So they always looped a couple of
extra belts around the main drive shaft for future use. Unless you had an
alternate console, the whole system was down while they worked on it.
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen <mcavoysAT@aolDOTcom> wrote:
> On Fri, 19 Dec 2008 13:46:06 EST, "Clarence1898" <cla### [at] comcastnet>
> wrote:
>
> >
> >You're barely out of diapers yet, my birthday was a couple of weeks ago and
> >your still several years short of half my age.
>
> LOL 1898 DOB?
> --
>
> Regards
> Stephen
Not quite. 1898 was my grandfathers DOB. Though there are days I sure feel
like it is. I'm actually on the leading edge of the baby boomers, 1945. I
guess more Cretaceous than Jurassic. I
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 14:49:05 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>
>Afraid so. The IBM 360's used the 1052 typewriter for a system console. The
>ce's loved them. When an internal drive belt broke, they had to disassemble
>half the typewriter to install a new belt. So they always looped a couple of
>extra belts around the main drive shaft for future use. Unless you had an
>alternate console, the whole system was down while they worked on it.
>
>Isaac.
>
The first consoles I used were ASR-33 Teletypes. IIRC they also had a built in
acoustic coupler to an internal modem with a baud rate of 110.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 15:00:09 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>
>Not quite. 1898 was my grandfathers DOB. Though there are days I sure feel
>like it is. I'm actually on the leading edge of the baby boomers, 1945. I
>guess more Cretaceous than Jurassic. I
I'm near the other edge, 1950. It makes working out my age easy :)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Clarence1898 wrote:
>
> I think there were a couple of different sizes of tape. Some earlier tape was 6
> holes wide, the tape I worked with was a newer 7 holes wide. I still have a box
> of paper cards in my garage. They make good bookmarks.
I recall seeing a "tape" with 1 hole width. I still haven't actually
fully realized, how it should work, since I recall wondering that the
holes didn't seem to differ from each other.
> You're barely out of diapers yet,
How would you know that? I might have some weird fetish :P.
> my birthday was a couple of weeks ago and
> your still several years short of half my age.
Mentioning my age was a pun for Stephen. I've *never* seen such card nor
tape in action.
> Isaac.
-Aero
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Invisible wrote:
> The tape *drive* itself is comparatively quiet. But when it first loads
> the tape, and occasionally thereafter, it makes a "chattering" noise
> which sounds *exactly* like the 1960s reel-to-reel tape streamers you
> see in old movies.
My naive guess would be that they're tensioning the tape by winding it until
a soft tab slips out of a slot at the right tension.
I don't remember reel-to-reel tape streamers chattering. Of course, the only
ones I used were in a big room full of mainframe where it was hard to hear
normal speech, let alone machine noises.
--
Darren New, San Diego CA, USA (PST)
The NFL should go international. I'd pay to
see the Detroit Lions vs the Roman Catholics.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Eero Ahonen <aer### [at] removethiszbxtnetinvalid> wrote:
> Clarence1898 wrote:
> >
> > I think there were a couple of different sizes of tape. Some earlier tape was 6
> > holes wide, the tape I worked with was a newer 7 holes wide. I still have a box
> > of paper cards in my garage. They make good bookmarks.
>
> I recall seeing a "tape" with 1 hole width. I still haven't actually
> fully realized, how it should work, since I recall wondering that the
> holes didn't seem to differ from each other.
>
> > You're barely out of diapers yet,
>
> How would you know that? I might have some weird fetish :P.
>
> > my birthday was a couple of weeks ago and
> > your still several years short of half my age.
>
> Mentioning my age was a pun for Stephen. I've *never* seen such card nor
> tape in action.
>
> > Isaac.
>
> -Aero
You would have enjoyed the the IBM 2560 MFCM (Multi-Function Card Machine). Card
reader and punch with two input hoppers, 5 output hoppers all selectable under
program control. The IBM engineers had a somewhat different interpretation of
the its acronym. I can leave that to your imagination.
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Stephen <mcavoysAT@aolDOTcom> wrote:
> On Fri, 19 Dec 2008 14:49:05 EST, "Clarence1898" <cla### [at] comcastnet>
> wrote:
>
> >
> >Afraid so. The IBM 360's used the 1052 typewriter for a system console. The
> >ce's loved them. When an internal drive belt broke, they had to disassemble
> >half the typewriter to install a new belt. So they always looped a couple of
> >extra belts around the main drive shaft for future use. Unless you had an
> >alternate console, the whole system was down while they worked on it.
> >
> >Isaac.
> >
> The first consoles I used were ASR-33 Teletypes. IIRC they also had a built in
> acoustic coupler to an internal modem with a baud rate of 110.
> --
>
> Regards
> Stephen
I once used a portable terminal with an acoustic coupler to dial into work from
home. I can't recall if it was 110 or 300 baud. At the time I was quite
impressed. Now I can't imagine how I ever got anything done.
Isaac.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 16:12:20 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>The IBM engineers had a somewhat different interpretation of
>the its acronym. I can leave that to your imagination.
Well who came up with the acronym AMD (Air Movement Device) for a fan? :-)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 16:24:08 EST, "Clarence1898" <cla### [at] comcastnet>
wrote:
>
>I once used a portable terminal with an acoustic coupler to dial into work from
>home. I can't recall if it was 110 or 300 baud. At the time I was quite
>impressed. Now I can't imagine how I ever got anything done.
The TTY I remember was 300 but had a setting for 110.
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Mike Raiford wrote:
> Stephen wrote:
>
>> In a similar vein, if you are in a building that is on fire (maybe you
>> are
>> trying to rescue your mother's electric drill or you favourite Haskell
>> book) and
>> your earlobes start to tingle. Then it is really time to get out.
>
> I'm curious... what does tingling earlobes signify?
You're about to get struck by lightning?
Post a reply to this message
|
|
| |
| |
|
|
From: Nicolas Alvarez
Subject: Re: Random question on a friday morning
Date: 19 Dec 2008 18:59:07
Message: <494c354b@news.povray.org>
|
|
|
| |
| |
|
|
Stephen wrote:
> And card readers ;)
I have those! Like, SD memory reader.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Clarence1898 wrote:
>
> You would have enjoyed the the IBM 2560 MFCM (Multi-Function Card Machine).
Most probably.
> Card
> reader and punch with two input hoppers, 5 output hoppers all selectable under
> program control.
Sounds very hifi for that time of world. I bet it cost a fair bit of money?
> The IBM engineers had a somewhat different interpretation of
> the its acronym. I can leave that to your imagination.
I assume that the last M stays the same and first M is followed by an o.
For C, I can't be sure if the two letters following it change places or not.
> Isaac.
-Aero
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Fri, 19 Dec 2008 21:59:13 -0200, Nicolas Alvarez <nic### [at] gmailcom>
wrote:
>Stephen wrote:
>> And card readers ;)
>
>I have those! Like, SD memory reader.
LOL
http://en.wikipedia.org/wiki/Punch_card
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
From: Jim Holsenback
Subject: Re: Random question on a friday morning
Date: 20 Dec 2008 10:59:30
Message: <494d1662@news.povray.org>
|
|
|
| |
| |
|
|
"Stephen" <mcavoysAT@aolDOTcom> wrote in message
news:ltvnk41gu81uo8t686pln2afrc2blh8sh7@4ax.com...
>>Not quite. 1898 was my grandfathers DOB. Though there are days I sure
>>feel
>>like it is. I'm actually on the leading edge of the baby boomers, 1945.
>>I
>>guess more Cretaceous than Jurassic. I
>
> I'm near the other edge, 1950. It makes working out my age easy :)
Haha .... we're just fossils .... ;-)
Enjoying this thread so I'm going to add .....
Had an HP1000 that used paper tape if the boot sector on the hard drive
became corrupted. You should have seen that thing fly through the reader. We
treated it like gold and kept it in a fireproof safe when not being used.
Jim
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Jim Holsenback wrote:
> Had an HP1000 that used paper tape if the boot sector on the hard drive
> became corrupted.
Or the NCR Century-100 that you used the front panel switches to read the
punched card into memory and then jumped to it in order to boot the machine.
--
Darren New, San Diego CA, USA (PST)
The NFL should go international. I'd pay to
see the Detroit Lions vs the Roman Catholics.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Sat, 20 Dec 2008 11:59:38 -0400, "Jim Holsenback" <jho### [at] hotmailcom>
wrote:
>
>"Stephen" <mcavoysAT@aolDOTcom> wrote in message
>news:ltvnk41gu81uo8t686pln2afrc2blh8sh7@4ax.com...
>>>Not quite. 1898 was my grandfathers DOB. Though there are days I sure
>>>feel
>>>like it is. I'm actually on the leading edge of the baby boomers, 1945.
>>>I
>>>guess more Cretaceous than Jurassic. I
>>
>> I'm near the other edge, 1950. It makes working out my age easy :)
>
>Haha .... we're just fossils .... ;-)
>
Speak for yourself ;)
>Enjoying this thread so I'm going to add .....
>
>Had an HP1000 that used paper tape if the boot sector on the hard drive
>became corrupted. You should have seen that thing fly through the reader. We
>treated it like gold and kept it in a fireproof safe when not being used.
>
I think I have. The Faci (?)t high speed tape reader I used would throw the tape
about 10 feet across the room.
>
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Sat, 20 Dec 2008 10:01:58 -0800, Darren New <dne### [at] sanrrcom> wrote:
>Jim Holsenback wrote:
>> Had an HP1000 that used paper tape if the boot sector on the hard drive
>> became corrupted.
>
>Or the NCR Century-100 that you used the front panel switches to read the
>punched card into memory and then jumped to it in order to boot the machine.
The Honeywell 416/316 would either read from tape or cards depending on the
settings you imputer to the switch register. Then would read a loader tape then
the boot tape then the program. I was a wiz at using octal :)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
