The 3540 was the diskette part of the 3740 data entry workstation (developed by GSD to replace keypunch and able to connect to all the FS systems that were never released, so connected to S/3 and S/360 as well as able to operate standalone). The 3740 was quite a beast, with options for printers. I think all the diskettes had to be formatted by 3740 prior to use in 3540, but this was early 70s technology (pretty much obsolete by 1980 as 3740 was very expensive, and didn't integrate well with any mainframe.
On Thu, May 14, 2020 at 8:59 AM R.S. <r.skoru...@bremultibank.com.pl> wrote: > I just checked bitsavers and found some information about 3540 > 1. Capacity - it depends. There were several types and subtypes, and > sub-subtypes of diskettes. Approximately 256kB to 1,2 MB, however 3540 > used only those low capacity. (details available on request) > 2. Feeding media - automatically, not manually. > 3. There were two types of 3540, single and double drive. > 4. The purpose was to deliver data from keypunch (wrong!) data entry > stations. At the times before CRT screens became popular. > > However still I have no idea about system support. How to write data on > diskette, how to read from diskette, how to recognize volume ID, etc. > No, I'm not going to use it, but I'm just curious. > > -- > Radoslaw Skorupka > Lodz, Poland > > > > > > > > W dniu 13.05.2020 o 16:55, R.S. pisze: > > Excuse me, what is IBM 3540? > > This is mainframe forum so I checked all historical DASD, including > > drum device and 2305 (which is not a drum) and found no such device. I > > also reviewed disks for small systems (S3 System 32, System 34... > > AS/400) and still no such device. Finally I found ~500MB SCSI attached > > 3,5" disk with such number. > > However I still don't know what is 3540. Any clue? > > > > > > Update: I found it. It is diskette (yes, 8" floppy diskette drive). > > Where can I find the reference about it? In new shining z/OS 2.4 JCL > > Reference! > > > > Wow! > > > > > > So, I dare to ask about this "still supported" device: > > Was it Bus & Tag attached? > > What parameters has the diskette? capacity, cylinders #, track length... > > How it was recognized by operating system? Was it another DASD volume? > > Every diskette was separate volume as tape cart? > > > > > > ====================================================================== > > Jeśli nie jesteś adresatem tej wiadomości: > > - powiadom nas o tym w mailu zwrotnym (dziękujemy!), > - usuń trwale tę wiadomość (i wszystkie kopie, które wydrukowałeś lub > zapisałeś na dysku). > Wiadomość ta może zawierać chronione prawem informacje, które może > wykorzystać tylko adresat.Przypominamy, że każdy, kto rozpowszechnia > (kopiuje, rozprowadza) tę wiadomość lub podejmuje podobne działania, > narusza prawo i może podlegać karze. > > mBank S.A. z siedzibą w Warszawie, ul. Senatorska 18, 00-950 Warszawa, > www.mBank.pl, e-mail: kont...@mbank.pl. Sąd Rejonowy dla m. st. Warszawy > XII Wydział Gospodarczy Krajowego Rejestru Sądowego, KRS 0000025237, NIP: > 526-021-50-88. Kapitał zakładowy (opłacony w całości) według stanu na > 01.01.2020 r. wynosi 169.401.468 złotych. > > If you are not the addressee of this message: > > - let us know by replying to this e-mail (thank you!), > - delete this message permanently (including all the copies which you have > printed out or saved). > This message may contain legally protected information, which may be used > exclusively by the addressee.Please be reminded that anyone who > disseminates (copies, distributes) this message or takes any similar > action, violates the law and may be penalised. > > mBank S.A. with its registered office in Warsaw, ul. Senatorska 18, 00-950 > Warszawa,www.mBank.pl, e-mail: kont...@mbank.pl. District Court for the > Capital City of Warsaw, 12th Commercial Division of the National Court > Register, KRS 0000025237, NIP: 526-021-50-88. Fully paid-up share capital > amounting to PLN 169.401.468 as at 1 January 2020. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
