IBM 1130 Sounds

67 views
Skip to first unread message

Randy King

unread,
Aug 8, 2012, 7:39:23 PM8/8/12
to ibm...@googlegroups.com
Has anyone compiled a set of MP3s of the sounds made by the 1130?

It would be fun to hear the stepper motor in the disk drive going hard at it, or the pen plotter or console typewriter doing its thing.

Yes, frivolous at best.  :)

Mike Nilson

unread,
Aug 8, 2012, 7:57:06 PM8/8/12
to ibm...@googlegroups.com

Sounds like ring tone territory!

 

Mike Nilson

 

Senior Partner

M Cubed Inc.

 

613-728-4006

 


Joel Kollin

unread,
Aug 8, 2012, 11:17:45 PM8/8/12
to ibm...@googlegroups.com
Yes, what a great ring tone!

Gmail

unread,
Aug 9, 2012, 7:58:30 AM8/9/12
to ibm...@googlegroups.com

Folks,

 

John White, with whom I worked at Bridgewater College (VA; circa 1967-1970) had musical talents (I have none). Somewhere he came up with FORTRAN instructions that caused the RF emissions of the CPU to be predominately a certain frequency.  He would place a radio on the console to the right of the Selectric typewriter and we could definitely listen to his interpretation of Johnny Cash melodies. 

 

Miles Sandin

In the beautiful Shenandoah Valley of Virginia, aka “The Breadbasket of the Confederacy”.

SPC

unread,
Aug 9, 2012, 8:07:19 AM8/9/12
to ibm...@googlegroups.com
M*y G*o*d...

This is at large the most weird story related with Computing that I've
heard in all my life.

SPc.

2012/8/9 Gmail <msan...@gmail.com>:

Bob Flanders

unread,
Aug 9, 2012, 8:17:59 AM8/9/12
to ibm...@googlegroups.com

But true... I don't know who wrote it, but we had a copy of a program that played music by rf interference.

Bob

David N. Lombard

unread,
Aug 9, 2012, 8:22:54 AM8/9/12
to ibm...@googlegroups.com
As did I, well, SUNY Maritime College did. I particularly remember Bach
and the Well Tempered Clavier. That's one of the things we'd do for
Homecoming Week. ISTR the "Pinup Calendar" being popular, too...

Now *that* would be a fun ringtone.

Is this deck available on any of the extant 1130's?

--
dnl

On 08/09/2012 05:17 AM, Bob Flanders wrote:
> But true... I don't know who wrote it, but we had a copy of a program
> that played music by rf interference.
>
> Bob
>
> On Aug 9, 2012 8:07 AM, "SPC" <sped...@ono.com
> <mailto:sped...@ono.com>> wrote:
>
> M*y G*o*d...
>
> This is at large the most weird story related with Computing that I've
> heard in all my life.
>
> SPc.
>
> 2012/8/9 Gmail <msan...@gmail.com <mailto:msan...@gmail.com>>:
> > Folks,
> >
> >
> >
> > John White, with whom I worked at Bridgewater College (VA; circa
> 1967-1970)
> > had musical talents (I have none). Somewhere he came up with FORTRAN
> > instructions that caused the RF emissions of the CPU to be
> predominately a
> > certain frequency. He would place a radio on the console to the
> right of
> > the Selectric typewriter and we could definitely listen to his
> > interpretation of Johnny Cash melodies.
> >
> >
> >
> > Miles Sandin
> >
> > In the beautiful Shenandoah Valley of Virginia, aka �The
> Breadbasket of the
> > Confederacy�.
> >
> >
> >
> >
> >
> > From: ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>
> [mailto:ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>]
> On Behalf
> > Of Joel Kollin
> > Sent: Wednesday, August 08, 2012 11:18 PM
> > To: ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>
> > Subject: Re: [IBM1130] IBM 1130 Sounds
> >
> >
> >
> > Yes, what a great ring tone!
> >
> > On Wed, Aug 8, 2012 at 7:57 PM, Mike Nilson <mni...@mcubed.ca
> <mailto:mni...@mcubed.ca>> wrote:
> >
> > Sounds like ring tone territory!
> >
> >
> >
> > Mike Nilson
> >
> >
> >
> > Senior Partner
> >
> > M Cubed Inc.
> >
> >
> >
> > 613-728-4006 <tel:613-728-4006>

Clare Owens

unread,
Aug 9, 2012, 8:49:26 AM8/9/12
to ibm...@googlegroups.com
Back when I was the "Computer Technician" at the Univ. of Buffalo Computing Center back in 1962 we had an IBM 1620.  We had programs for the 1620 that would play music on an AM radio.  Normally we'd place the radio on the console but it was a pretty good transmitter and you could hear it across the room, an old double sized classroom in the engineering building. I don't remember the tunes any more.  The clock frequency was just about in the BC band.  When they moved the 1620 acreoss the hall into a smaller air conditioned room so I couldn't hear when it ran out of input or output cards I'd tune my Emerson 888 between stations and put it on the chalkboard next to my desk and when the RF noise stopped I knew I had to go and tend to it.

We used to play "Anchors Away" on the 1403 printer on our 1401 in the main computer center a few years later.  7044 tended to by the 1401. 

Ah, the good old days.

Clare

Chuck Worthley

unread,
Aug 9, 2012, 8:56:19 AM8/9/12
to ibm...@googlegroups.com
Hi Bob !

   If I remember......we came up with a program that allowed us to use the keyboard like a Moog.....picked up by a radio....I *think* FM....but again could be wrong

and again....if I remember....I put in  a little delay loop for processing keyboard interrupts to keep the keyboard locked briefly,
which for some reason made the sound better....again hazy memory

and if I remember, we got the program for a song from somewhere, and hacked it into the Moog synthesizer program..


I also remember a program that printed patterns to the 1132 printer that played songs...

Chuck

James C Field

unread,
Aug 10, 2012, 4:59:28 PM8/10/12
to ibm...@googlegroups.com
I used to do a pretty good imitation of the alternating solenoids that acted as a kind of escapement on the r/w head drive. As recall there were two electromagneticly actuated little plungers that mechanically stopped the read/write heads directly over the tracks by alternating engagement with a sawtooth like rack.

Given the state of the technology at that time it would have been silly to use a stepper motor as it would suffer from a delay in stabilising the r/w head over the target track.

I made Donald Duck like sound in my cheeks (without vocalisation) while moving my hand and fingers in a seek-like motion over an imaginary platter.

At least three geeks were amused... None since, as my deteriorating connective tissues can't match those of my youth.

I recall a lovely rendering of Bach's Jesu Joy of Man's Desiring on a tranny.




Stewart

unread,
Aug 10, 2012, 5:59:11 PM8/10/12
to IBM1130
James,
You are correct - no stepper motors are used in the 2310 disk drive.
It uses a servo mechanism, with as you say two electromagnetic
wedges that mechanically stop the read/write heads over the desired
cylinder.

The most noticeable sound of the 1130 (apart from the Selectric) comes
from the 7 cooling fans.

Stewart
Lead IBM 1130 TNMoC
Bletchley Park
England

On Aug 10, 9:59 pm, James C Field <jamescfi...@cooptel.net> wrote:
> On 09/08/2012 12:58 PM, Gmail wrote:
>
>
>
>
>
>
>
>
>
> > Folks,
>
> > John White, with whom I worked at Bridgewater College (VA; circa
> > 1967-1970) had musical talents (I have none). Somewhere he came up
> > with FORTRAN instructions that caused the RF emissions of the CPU to
> > be predominately a certain frequency.  He would place a radio on the
> > console to the right of the Selectric typewriter and we could
> > definitely listen to his interpretation of Johnny Cash melodies.
>
> > Miles Sandin
>
> > In the beautiful Shenandoah Valley of Virginia, aka "The Breadbasket
> > of the Confederacy".
>
> > *From:*ibm...@googlegroups.com [mailto:ibm...@googlegroups.com] *On
> > Behalf Of *Joel Kollin
> > *Sent:* Wednesday, August 08, 2012 11:18 PM
> > *To:* ibm...@googlegroups.com
> > *Subject:* Re: [IBM1130] IBM 1130 Sounds
>
> > Yes, what a great ring tone!
>
> > On Wed, Aug 8, 2012 at 7:57 PM, Mike Nilson <mnil...@mcubed.ca
> > <mailto:mnil...@mcubed.ca>> wrote:
>
> > Sounds like ring tone territory!
>
> > Mike Nilson
>
> > Senior Partner
>
> > M Cubed Inc.
>
> > 613-728-4006 <tel:613-728-4006>
>
> > ------------------------------------------------------------------------
>
> > *From:*ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>
> > [mailto:ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>]
> > *On Behalf Of *Randy King
> > *Sent:* August 8, 2012 7:39 PM
> > *To:* ibm...@googlegroups.com <mailto:ibm...@googlegroups.com>
> > *Subject:* [IBM1130] IBM 1130 Sounds

Randy King

unread,
Aug 10, 2012, 6:59:07 PM8/10/12
to ibm...@googlegroups.com
Wow!  The cylinders must have been huge, geometrically speaking.

John R Pierce

unread,
Aug 10, 2012, 9:20:58 PM8/10/12
to ibm...@googlegroups.com
On 08/10/12 3:59 PM, Randy King wrote:
> Wow! The cylinders must have been huge, geometrically speaking.


There were only 203 cylinders on that disk, I think they were like 20
per inch or something. 320 words/sector,

IIRC, one ratchet was for even cylinders, and the other for odd. the
voice coil provided the 'in' or 'out' force, there was a film strip with
lines that passed a photo cell to count tracks, and one or the other
ratchet would count every other cylinder by 'buzzing' 2 cylinders at a
time, then it might 'tick' to the other ratchet for an odd length seek.
I'm not sure I'd call that a 'servo', its actually more like a linear
stepper mechanism.

the disk spun at 1500 rpm, and had 320 word sectors, with 4 sectors per
track, the transfer rate was 32000 words/second. seeking took 15mS per
double track, so a full length seek would take 1.5 seconds.



--
john r pierce N 37, W 122
santa cruz ca mid-left coast

Randy King

unread,
Aug 10, 2012, 10:04:50 PM8/10/12
to ibm...@googlegroups.com
Yeah, John - I think it's semantics about the mechanism, and the design you described is elegant, especially for the time and what kinds of technology and materials were available.

Joel Kollin

unread,
Aug 10, 2012, 10:49:22 PM8/10/12
to ibm...@googlegroups.com
I am not sure if it was the 1130 or the 1620, but one of then had to go home after every disk access.

Paul Duggan

unread,
Aug 10, 2012, 10:58:48 PM8/10/12
to ibm...@googlegroups.com

Let me weigh in for the first time. I was one of the engineers that developed the 1130 at the IBM San Jose Development Laboratory. My first responsibility was the 13RK “Ramkit” attachment design.

 

If memory serves, the first single-disk drive used one stepper. The later 44RK used two and had one-half the average access time. It appears the 1130 you gentlemen have lovingly restored has the later disk drive.

 

Thanks for the memory.

 

Regards,

 

Paul Duggan

Truckee, California  USA

 


From: ibm...@googlegroups.com [mailto:ibm...@googlegroups.com] On Behalf Of Joel Kollin


Sent: Friday, August 10, 2012 7:49 PM
To: ibm...@googlegroups.com


No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2197 / Virus Database: 2437/5191 - Release Date: 08/10/12

John R Pierce

unread,
Aug 10, 2012, 10:59:11 PM8/10/12
to ibm...@googlegroups.com
On 08/10/12 7:49 PM, Joel Kollin wrote:
> I am not sure if it was the 1130 or the 1620, but one of then had to
> go home after every disk access.

that must have been the 1620. the 1130 would go home after an error,
but not during ordinary operations.

Clare Owens

unread,
Aug 11, 2012, 10:25:47 AM8/11/12
to ibm...@googlegroups.com
The 1620 could have the 1311 disk drive attached.  Multi-disk pack - not at all like the drives on the 1130.  Predecessor to the 2311 drives for the System/360.

Clare

Bob Flanders

unread,
Aug 11, 2012, 10:49:29 AM8/11/12
to ibm...@googlegroups.com

Clare,
The 2311 was available on the 1130. Each platter was treated like a separate 2310 disk.

Gmail

unread,
Aug 11, 2012, 11:43:02 AM8/11/12
to ibm...@googlegroups.com

Folks,

 

I may have commented on this before.  In our Service Bureau operation, we enhanced the 1130 by attaching Logicon equipment.  It utilized a multi-platter drive and used 4 of the platters as 2310 type disks and the rest was a giant (for the day) “bulk” area. 

 

We also had a Logicon paper tape reader, a Logicon 600 lpm printer and a Logicon 9 track ½” magnetic tape drive.  We also had a Logicon async 1200 baud communication adapter.  We had clients using the Texas Instruments 942 programmable terminals.  The 942 used the Intel 4004 chip processor.  They had dual cassette drives, one for input programs we wrote for the client’s applications, the other accumulated the data.  During the evening hours, our operator would use the 1130 to “Poll” the 742’s which were sitting there waiting to be contacted.  Then we would read the data into the 1130, process it creating invoices, reports, etc and then use a courier to send it back.  We had numerous clients around the state of VA that we serviced this way.

 

Those were interesting and challenging times. 

 

Miles Sandin

Bridgewater VA

 

From: ibm...@googlegroups.com [mailto:ibm...@googlegroups.com] On Behalf Of Bob Flanders


Sent: Saturday, August 11, 2012 10:49 AM
To: ibm...@googlegroups.com

Reply all
Reply to author
Forward
0 new messages