Sigh I used to know ttl, cmos, linear, z8 and hc11 microprocessor, pdp8 and pdp11 , lsi 11, I could program in binary, octal, basic, fortran and Pascal. What happened?
October 31, 2026 at 7:15 PM
Sigh I used to know ttl, cmos, linear, z8 and hc11 microprocessor, pdp8 and pdp11 , lsi 11, I could program in binary, octal, basic, fortran and Pascal. What happened?
"Booting [my] notebook takes about four minutes and booting the PDP11 took 5 seconds, on a machine 5000x slower. What's wrong with this picture?"
"If a toilet gets clogged [on an aircraft carrier], it doesn't start firing missiles"
"If a toilet gets clogged [on an aircraft carrier], it doesn't start firing missiles"
October 30, 2026 at 4:14 PM
"Booting [my] notebook takes about four minutes and booting the PDP11 took 5 seconds, on a machine 5000x slower. What's wrong with this picture?"
"If a toilet gets clogged [on an aircraft carrier], it doesn't start firing missiles"
"If a toilet gets clogged [on an aircraft carrier], it doesn't start firing missiles"
I have 1.25MB of RAM in my PDP11/23; I use it mostly for learning MACRO assembly language. The programs I am writing take up maybe a kilobyte. Does that make me a terrible wolf?
October 31, 2026 at 3:58 AM
I have 1.25MB of RAM in my PDP11/23; I use it mostly for learning MACRO assembly language. The programs I am writing take up maybe a kilobyte. Does that make me a terrible wolf?
Yo estoy recuperando mis viejos scripts en FORTRAN por si acaso. Y me acabo de instalar el simulador de PDP11 de primero de carrera para ir desengrasando. (¿Debería hacer pesas con mi mano izquierda, ya que soy zurdo?)
October 31, 2026 at 5:12 PM
Yo estoy recuperando mis viejos scripts en FORTRAN por si acaso. Y me acabo de instalar el simulador de PDP11 de primero de carrera para ir desengrasando. (¿Debería hacer pesas con mi mano izquierda, ya que soy zurdo?)
#DEC #DigitalEquipmentCorporation #FWakeDEC
#PDP11 #BASIC #BASICprogram #ProgramLoad
#FWakePaperTape #FWakePaperTape #FWakePDP11
PDP-11
16-bit processor and data bus
June 1972 commercial computer technology
www.youtube.com/watch?v=lLNL...
#PDP11 #BASIC #BASICprogram #ProgramLoad
#FWakePaperTape #FWakePaperTape #FWakePDP11
PDP-11
16-bit processor and data bus
June 1972 commercial computer technology
www.youtube.com/watch?v=lLNL...
PDP-11/10 running paper tape BASIC using a high speed reader / punch
YouTube video by Mattis Lind
www.youtube.com
October 20, 2026 at 11:13 PM
#DEC #DigitalEquipmentCorporation #FWakeDEC
#PDP11 #BASIC #BASICprogram #ProgramLoad
#FWakePaperTape #FWakePaperTape #FWakePDP11
PDP-11
16-bit processor and data bus
June 1972 commercial computer technology
www.youtube.com/watch?v=lLNL...
#PDP11 #BASIC #BASICprogram #ProgramLoad
#FWakePaperTape #FWakePaperTape #FWakePDP11
PDP-11
16-bit processor and data bus
June 1972 commercial computer technology
www.youtube.com/watch?v=lLNL...
pdp11-2 to become worlds first 143bit cpu architecture #qemu #belllaboratories
October 17, 2026 at 11:20 PM
pdp11-2 to become worlds first 143bit cpu architecture #qemu #belllaboratories
The OS from my PDP11 days was RSTS-e
Resource Sharing Time Sharing - extended
Resource Sharing Time Sharing - extended
October 6, 2026 at 6:31 PM
The OS from my PDP11 days was RSTS-e
Resource Sharing Time Sharing - extended
Resource Sharing Time Sharing - extended
We held back on a major project as NT4 was simply not reliable enough for continuous control environment.
Y2K turned out to be just the ticket once we had tested everything.
We had a pdp11 image running in a container file and controlling complex batch plant via bus adapters.
Y2K turned out to be just the ticket once we had tested everything.
We had a pdp11 image running in a container file and controlling complex batch plant via bus adapters.
October 6, 2026 at 6:16 PM
We held back on a major project as NT4 was simply not reliable enough for continuous control environment.
Y2K turned out to be just the ticket once we had tested everything.
We had a pdp11 image running in a container file and controlling complex batch plant via bus adapters.
Y2K turned out to be just the ticket once we had tested everything.
We had a pdp11 image running in a container file and controlling complex batch plant via bus adapters.
Hello! It’s 1970! I just saw this awesome game called Spacewar on a PDP-10 at university! How do I make you pay me coins for it? Dime and quarter a #pdp11 ??
WELCOME TO VIDEO GAME COIN-OP
Come see us at Portland Retro Gaming Expo!
#vintagegaming #gaming #prge #vintagecomputer
WELCOME TO VIDEO GAME COIN-OP
Come see us at Portland Retro Gaming Expo!
#vintagegaming #gaming #prge #vintagecomputer
October 6, 2026 at 2:05 AM
Hello! It’s 1970! I just saw this awesome game called Spacewar on a PDP-10 at university! How do I make you pay me coins for it? Dime and quarter a #pdp11 ??
WELCOME TO VIDEO GAME COIN-OP
Come see us at Portland Retro Gaming Expo!
#vintagegaming #gaming #prge #vintagecomputer
WELCOME TO VIDEO GAME COIN-OP
Come see us at Portland Retro Gaming Expo!
#vintagegaming #gaming #prge #vintagecomputer
Booting up Version 7 UNIX on Misspiggy. We’re open 10-4 today!
icm.museum
#vintagecomputer #retrocomputer #unix #pdp11
icm.museum
#vintagecomputer #retrocomputer #unix #pdp11
October 4, 2026 at 4:05 PM
Booting up Version 7 UNIX on Misspiggy. We’re open 10-4 today!
icm.museum
#vintagecomputer #retrocomputer #unix #pdp11
icm.museum
#vintagecomputer #retrocomputer #unix #pdp11
En la facultad ya había otros computadores, como un PDP11 y ese ya contaba con almacenamiento en cintas magnética de carrete!
en.wikipedia.org/wiki/PDP-11
en.wikipedia.org/wiki/PDP-11
PDP-11 - Wikipedia
en.wikipedia.org
October 4, 2026 at 11:23 PM
En la facultad ya había otros computadores, como un PDP11 y ese ya contaba con almacenamiento en cintas magnética de carrete!
en.wikipedia.org/wiki/PDP-11
en.wikipedia.org/wiki/PDP-11
October 3, 2026 at 12:19 PM
Hängt davon ab, wann "damals" ist. Ursprünglich wurde Unix auf PDP7 und PDP11 entwickelt, klassisches CISC. Die erste Runde Unix-Workstations hatte auch klassische CISC-Mikroprozessoren: vor allem der 68k (z.B. Sun, HP) und NS32k (Siemens MX). Dann erst kamen die RISC-Prozessoren und mit ihnen dann
October 3, 2026 at 2:14 PM
Hängt davon ab, wann "damals" ist. Ursprünglich wurde Unix auf PDP7 und PDP11 entwickelt, klassisches CISC. Die erste Runde Unix-Workstations hatte auch klassische CISC-Mikroprozessoren: vor allem der 68k (z.B. Sun, HP) und NS32k (Siemens MX). Dann erst kamen die RISC-Prozessoren und mit ihnen dann
September 27, 2026 at 2:57 PM
We’re looking for a RSTS/e admin to help us manage remote users on the modified PDP-11/ 23 plus! #vintagecomputing #retrocomputing #pdp11
September 23, 2026 at 12:37 PM
We’re looking for a RSTS/e admin to help us manage remote users on the modified PDP-11/ 23 plus! #vintagecomputing #retrocomputing #pdp11
i worked on a Intelligence Community program; my aerospace company build them a high speed ATM switch, state of the art. a big deal, hard to pull off.
i did a lot of DEC stuff, from PDP11/34 up through all the VAXs and into Alphas. I loved VAX/VMS as a programmer.
i did a lot of DEC stuff, from PDP11/34 up through all the VAXs and into Alphas. I loved VAX/VMS as a programmer.
September 23, 2026 at 7:23 AM
i worked on a Intelligence Community program; my aerospace company build them a high speed ATM switch, state of the art. a big deal, hard to pull off.
i did a lot of DEC stuff, from PDP11/34 up through all the VAXs and into Alphas. I loved VAX/VMS as a programmer.
i did a lot of DEC stuff, from PDP11/34 up through all the VAXs and into Alphas. I loved VAX/VMS as a programmer.
...but have my Action! And Assembly carts all ready to go.
And don't forget my pdp11 😂
Honestly just touching the silicon this way is so much more rewarding than the layers of abstraction modern computers make you deal with.
Where's the fun in that?
And don't forget my pdp11 😂
Honestly just touching the silicon this way is so much more rewarding than the layers of abstraction modern computers make you deal with.
Where's the fun in that?
September 14, 2026 at 4:37 PM
...but have my Action! And Assembly carts all ready to go.
And don't forget my pdp11 😂
Honestly just touching the silicon this way is so much more rewarding than the layers of abstraction modern computers make you deal with.
Where's the fun in that?
And don't forget my pdp11 😂
Honestly just touching the silicon this way is so much more rewarding than the layers of abstraction modern computers make you deal with.
Where's the fun in that?
why does the pdp11 look like a dope ass synthesizer
September 12, 2026 at 10:41 PM
why does the pdp11 look like a dope ass synthesizer
Not any more but I've worked on plenty in my time in addition to the Qbus above.
Our most notable upgrade was PC > PDP11 system image running in a container file - then ISA connected to a Co- Processor and Unibus adapter to control plant - circa 1979 vintage.
And it bloody worked...
Our most notable upgrade was PC > PDP11 system image running in a container file - then ISA connected to a Co- Processor and Unibus adapter to control plant - circa 1979 vintage.
And it bloody worked...
September 11, 2026 at 6:21 PM
Not any more but I've worked on plenty in my time in addition to the Qbus above.
Our most notable upgrade was PC > PDP11 system image running in a container file - then ISA connected to a Co- Processor and Unibus adapter to control plant - circa 1979 vintage.
And it bloody worked...
Our most notable upgrade was PC > PDP11 system image running in a container file - then ISA connected to a Co- Processor and Unibus adapter to control plant - circa 1979 vintage.
And it bloody worked...
I eventually had product responsibility for all our pdp11 based systems in the field.
It's a long and detailed history.
It's a long and detailed history.
September 8, 2026 at 8:53 AM
I eventually had product responsibility for all our pdp11 based systems in the field.
It's a long and detailed history.
It's a long and detailed history.
He had pdp8e and pdp8a machines in the field on some of our smaller applications.
Mainly small water/sewage treatment works but some chemical manufacture too.
The larger telemetry systems were always pdp11.
Mainly small water/sewage treatment works but some chemical manufacture too.
The larger telemetry systems were always pdp11.
September 8, 2026 at 10:15 AM
He had pdp8e and pdp8a machines in the field on some of our smaller applications.
Mainly small water/sewage treatment works but some chemical manufacture too.
The larger telemetry systems were always pdp11.
Mainly small water/sewage treatment works but some chemical manufacture too.
The larger telemetry systems were always pdp11.
That was the one where the memory was literal ferrite rings (cores) on a wire matrix? Seen one on a PDP11/70, although I suspect it wasn't being used any more at the time.
September 8, 2026 at 10:27 AM
That was the one where the memory was literal ferrite rings (cores) on a wire matrix? Seen one on a PDP11/70, although I suspect it wasn't being used any more at the time.
Our very last incarnations were the pdp11 image running in a PC container file with a real unibus/qbus converters for drive existing field I/O
One system was particularly awesome and the plant interface equipment dated back to late 70s
And we got the bloody thing working!
One system was particularly awesome and the plant interface equipment dated back to late 70s
And we got the bloody thing working!
September 8, 2026 at 9:41 AM
Our very last incarnations were the pdp11 image running in a PC container file with a real unibus/qbus converters for drive existing field I/O
One system was particularly awesome and the plant interface equipment dated back to late 70s
And we got the bloody thing working!
One system was particularly awesome and the plant interface equipment dated back to late 70s
And we got the bloody thing working!
Dear reader, I was that person.
(I've coded a papertape reader and keyed it into a PDP11 by hand as binary. The tape then loaded the basic OS.)
Fuck I'm old.
(I've coded a papertape reader and keyed it into a PDP11 by hand as binary. The tape then loaded the basic OS.)
Fuck I'm old.
September 7, 2026 at 6:05 AM
Dear reader, I was that person.
(I've coded a papertape reader and keyed it into a PDP11 by hand as binary. The tape then loaded the basic OS.)
Fuck I'm old.
(I've coded a papertape reader and keyed it into a PDP11 by hand as binary. The tape then loaded the basic OS.)
Fuck I'm old.