dieter (The Demented Teddy Bear) (11/20/88)
Hi. I'm the proud (?) owner of a handful of PDP-11/03s. After various experimentation and the acquisition of more obsolete hardware, I've come up with some questions: Is there an LSI-11 controller that understands the Pertec tape interface? What's it's designation and how much should I expect to pay? Is there an LSI-11 controller that understands ST-506/SCSI/ ESDI/SMD/<favorite acronym>? Same questions as above. Generalized: I've been led to believe that the LSI-11 bus is a fore-runner of Q-BUS (or was that UNIBUS?). Other than memory, which obviously won't work, do I have a prayer of taking cards designed for the other bus spec and having them work? Eventually I'll probably pick up a used PDP-11/34 (or bigger, as long as it has memory management), but for now I'll play with what I've got. Yes, I realize I'm basically discussing turbo-charging a skate-board, but it's *my* skate-board, and I want it to be the most tricked-out skate-board on the street. Of course, if you can answer the above, I've got even sillier questions involving Apple ][s, PDP-8s, PDP-11s, and SLIP, but you probably won't be interested.... Thanks for any helpful information. Dieter (anybody need some core memory out of a DEC-20?) Muller -- Welcome to the island. You are number six. dieter%nmt@relay.cs.net dieter@jupiter.nmt.edu
cetron@wasatch.UUCP (Edward J Cetron) (11/22/88)
In article <1488@nmtsun.nmt.edu> dieter@titan.nmt.edu (The Demented Teddy Bear) writes: > > Is there an LSI-11 controller that understands the Pertec >tape interface? What's it's designation and how much should I expect >to pay? yep, lots of them... for used, and 18-bit, about 600. > /SCSI/ >ESDI/SMD/<favorite acronym>? Same questions as above. likely the same answer as above.... > Generalized: I've been led to believe that the LSI-11 bus is >a fore-runner of Q-BUS (or was that UNIBUS?). Other than memory, which The lsi-11 bus IS the q-bus (or at least the 16-18bit version of it... the current Q-bus is 22-bit using some lines which were originally called [reserved for 22 bits] but where used for diagnostics on several boards. I have the most current list of which boards are 22-bit capable and which are only 18-bit capable. > >Yes, I realize I'm basically discussing turbo-charging a skate-board, >but it's *my* skate-board, and I want it to be the most tricked-out >skate-board on the street. Of course, if you can answer the above, Ah, but what a skateboard >I've got even sillier questions involving Apple ][s, PDP-8s, PDP-11s, My memory of 8's is way too faint, but I do remember the ][+ and the original ][ and I still use LOTS of 11's -ed cetron@wasatch.utah.edu