On 1/12/19 4:30 PM, allison via cctalk wrote: > On 01/12/2019 04:14 PM, Bill Gunshannon via cctalk wrote: >> On 1/12/19 2:25 PM, allison via cctalk wrote: >>> On 01/12/2019 12:29 PM, Pete Turnbull via cctalk wrote: >>>> On 12/01/2019 01:24, Zane Healy via cctalk wrote: >>>> >>>>> I’m pretty sure you could get the /23+, /53, /73, /83, and /93 in >>>>> either a BA23 or a BA123. I have an actual badged BA23 pedestal for >>>>> my /23+. >>>> I'm fairly certain all microPDP-11/23+ systems were only sold in BA23 >>>> boxes, and I think microPDP-11/73 and the later, cheaper, cut-down >>>> 11/53 were as well. But almost all the 11/83 systems I've ever seen >>>> were in BA123 boxes, though they did sell some in BA23 pedestals - >>>> I've got one. >>>> >>> Pete, >>> >>> Your right the 11/23+ showed up on a lot of boxes but not the BA123 >>> though it would fit. >> My 11/23+ is in a box labeled PDP-11/23PLUS on the front with >> three toggle switches. :-) It has a 9276-A backplane labeled >> OPTION 11/23B. It is a 9 slot, Q22 A-B-C-D . That's the home >> for my next system which will (hopefully) have 2 meg of memory, >> a DEQNA and an Andromeda Card for a small hard disk and 8" floppy. > BA11 box with one of the usual two common backplanes or standard BA23. > > Problem with DEQNA is what OS? RT11 does nothing with it. RSX-11 > I don't have a recent enough version so its often unused/
My only problem is I have 3 DEQNA and 1 DELQA. I thought I read somewhere recently that the DEQNA was the better of the two. As for software, what about the Kent TCPIP package? Will that not work with the DEQNA? I thought the two Ethernet controllers for QBUS were functionally the same. And, while we are at it, if I type BOOT XH does it look for a MOP Server? > >> I also plan on another small 11/23 with 128KW of memory and an >> 18 bit backplane so I can use the RX02 emulator. And, probably >> an Andromeda in there, too >> >> >> To bring my part of this discussion to an end, I now have a BA23 >> MicroPDP box with an 11/73 CPU, 4 meg of memory, DHV11 for eight >> serial lines (probably only use one to talk to a TU58 emulator >> but the DHV11 was just sitting there looking lonely) a DEQNA >> and a CMD SCSI Controller set for 6 disks and one tape. Only >> thing it lacks at this point is software. > The TU58 like a responsive IO a DLV11J is a better choice for console and DD > and works best if first card after the memory (early in the interrupt > grant chain). My 11/73 only has a console, thus the need for the DHV11 but really only one port. (Although I may try putting multiple serial ports in all the boxes and doing some "networking" over them. :-) > The simulators are faster than tu58 so it makes for fewer retries. > I use DHV11 for terminal and modem lines (slower stuff). >> On to my next project. >> >> Thanks for all the help. I had forgotten just how much fun >> real computers were compared to PC's and MAC's. > Yes they are. Their performance without all the gui gunk is often a > suprize > to many that have not worked with them. More surprising than most would accept. It's not a PDP-11 but I have a 6809 that was sold as a toy for running games that I have had 4 remote login sessions and a web server running on. And that was with networked disks and all remote access over a 115K serial line on a bitbanger port!! I would love to see a version of that OS on the PDP-11. bill
