Yup the 2619A and 2611A were the (horrible) chain printers.
The 2618, 2617, and 2613 were (good) drum printers. They all used
carriage control paper tapes. None of those printers were
made by HP by the way.
Bob J. -- Ideal Computer Services
http://www.icsgroup.net
Reid E. Baxter wrote:
> More than likely the HP2619A printer. It had a plexiglass door on the side
> of the printer facade. The HP2617a had a huge cast iron cover that could be
> rolled backwards to reveal (I think) another paper tape carriage control
> reader. There was also a HP2618 printer that was a behemoth, but I don't
> recall if it had a carriage control tape reader in it.
>
> Regards,
>
> Reid E. Baxter
>
>
>
>
> Larry Barnes
> <LBarnes@THECREEK
> .COM> To
> Sent by: HP-3000 [log in to unmask]
> Systems cc
> Discussion
> <[log in to unmask] Subject
> TC.EDU> Re: [HP3000-L] Blast from the past
> Friday
>
> 07/20/2007 03:19
> PM
>
>
> Please respond to
> Larry Barnes
> <LBarnes@THECREEK
> .COM>
>
>
>
>
>
>
>
>
> I still have some paper tapes for the old HP3000 chain printer; forgot
> the model number and I have two punch tools for creating more tapes!!
>
> I need to clean the rust off of them and bring them to work and see who
> can tell me what they are!!
>
> L.A.B.
>
>
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
> Behalf Of Pete Eggers
> Sent: Friday, July 20, 2007 11:21 AM
> To: [log in to unmask]
> Subject: Re: JCL
>
> Ah, the 64k memory box... Memory was called "core" not "RAM" back then.
> Why? Because every memory bit was a tiny magnetic donut called a
> "core", hand strung at the factory with 2 wires -- one horizontal and
> one vertical.
> The refrigerator sized cabinet not only housed this core memory, but a
> large oil tank and pump to keep the core memory cool.
>
> Anyone seen the precursor to disks? Magnetic drum storage. The control
> hardware was much simpler because there was exactly the same number of
> bits, traveling at the same speed, no matter where the data was on the
> drum.
>
> I loved to load those paper tapes on the optical reader having sat at a
> teletype 'forever' waiting on the attached mechanical readers!
>
> Speaking of paper tape, anyone ever have to bootstrap a machine by
> entering data/address pairs through toggle switches on the front panel
> to load the operating system's boot program off paper tape?
>
> And then those new fangled floppy disks. At 8 inches square, they
> certainly were floppy! Anyone use those data entry desks with built in
> 8" floppy drives? Another new fangled invention by IBM: 96 column
> cards! Remember those? Not the standard rectangular 80 column ones
> with rectangular holes designed for mechanical readers, but the little
> square ones with round holes having 3 sets of 32 characters stacked, and
> designed for the fancy new optical readers.
>
> Another joy: VTOC (Volume Table Of Contents)! No segmented/paged
> files!
> You had to have a current printout of the VTOC to find a 'hole' between
> files big enough to hold the new file you wanted to add! Or, do your
> own garbage collection by moving files around, one by one, to make a
> hole big enough, if there was enough free space. You had to be careful
> of which end of the file and copy direction when shifting files to close
> small holes, as the copy function would happily copy a file into the
> middle of itself -- no bits to waste protecting the machine from stupid
> human mistakes! ;)
>
> Anyone remember when techs carried oscilloscopes and logic gate charts?
> I can remember helping techs find problems using the logic gate charts
> to trace down problems in the hardware. Ah yes, the "good ol' days" of
> nand gates!
>
> I'm too "young" to have used those IBM "computers" that used patch
> panels for programming them, but I saw a few of them in the surplus
> corner of the Northrup computer room. Now there was a computer room! I
> stood on a chair to look across a sea of IBM mainframes, seemed to be
> larger than a football field! In the center was an operator circle:
> monitors stacked 3 high above a ring of keyboards, and operators in
> wheeled chairs sliding back and forth on the inside of the ring to
> attend or check one of the dozens of monitors.
> And then at the far end of the room, a tape vault manned by 2 or 3 tape
> librarians behind a dutch door, and a semi-circle of refrigerator sized
> tape drives fanned out in front of the door, with tape drive operators
> running tapes back and forth between the vault and the tape drives.
> Most massive computer room I have ever seen.
>
> On the other end of the size spectrum, anyone ever have the opportunity
> to program an original Altair?
>
> Remember when Hazeltine was the king of the CRTs? Man, what an
> improvement over punched cards, especially for a poor typist like me!
>
> Pete
>
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