Unanswered Questions

I'm currently using an IBM Model M keyboard with a PS/2-to-USB active adapter. When I type fast on my main PC, almost any key will get "stuck" and keeps repeating until I press another key. ...

After solving a configuration challenge, the ISA Token Ring adapter in my RS/6000 is still not connected to the ring. Extract from errpt -a: LABEL: NONE IDENTIFIER: 0118D2D0 Date/Time: ...

This page references a problem with the IBM 5162 BIOS where it will present an error during POST under some circumstances and that using a third-party BIOS was a workaround. What other BIOS ROMs ...

A while ago I read a post about creating the smallest possible ELF executable doing something observable — printing the number 42, for example — which Linux could accept and execute successfuly. The ...

In a talk on the IBM 360 and the computers it replaced the speaker at 39:35 describes the 7070 as 'a dog', and elsewhere contrasts it unfavorably with the 1401 (which considerably exceeded ...

A description of the hardware-level track format of the IBM media used on the BESM-6 I've found is as follows (translated by Google with minimal corrections): Track header structure: ...

The BBC Micro hardware specification includes the clause: The legend on the keys will be achieved by two-shot moulding This is a process by which the glyphs are made to run all the way through the ...

Background: IBM compatible tape structure (*1) consists of a series of label blocks describing the volume and each file (Data Set). Essential the structure looks like this: VOL1..9 Volume header ...

I have a Compaq Prolinea 3/25zs (BIOS 08/03/92 386C)and suspect it can be switched between 25 MHz and some lower speed. There's a BIOS setting for System Power-on Speed, "Auto" or "High&...

A common technology stack for line of business applications in the sixties and seventies was IBM COBOL with the IMS database. I'm curious about how the combination handled record definitions. COBOL ...

I dug up my old ERGO 301-C134 Terminal, but in the various house-moves, the keyboard has gone missing. I searched and searched the roof-cavity, but it has probably been lost. Click to embiggen ...