View allAll Photos Tagged pdp11
austin, texas
1977
motorola semiconductor plant
part of an archival project, featuring the photographs of nick dewolf
© the Nick DeWolf Foundation
Image-use requests are welcome via flickrmail or nickdewolfphotoarchive [at] gmail [dot] com
What will I find on Craigslist next? The sides are detached and in another part of the truck. The seller described it as a PDP-11, but I'm unsure.
This platter has a problem. Luckily we felt it out of balance before it fully spun up and the drive head impacted it.
(Although what could cause such a massive bend in solid aluminum platter?)
Die Ansteuerung der LEDs macht übrigens ein kleiner Linux-Rechner (single board), Details dazu hier: retrocmp.com/projects/blinkenbone
Me (the fat guy in the red shirt), running a card-to-tape operation on the pdp-11. I'm presently trying to move all my software onto slightly more modern media. The card reader is a Documation M200 (identical to the DEC CR-11) with a serial interface (since the original CR-11 interface & controller) was only available for UNIBUS machines). The tape drive is a Qualstar streaming transport. The terminal is a VT-102. The printer is a DEC re-badged Diablo Hytyper II. The CPU is an 11/03 running RT-11.
Cheshire's LSI-11/73 system, lives in a system box that originally held an LSI-11/03. Many upgrades since the original!
The peripherals in the left cabinet are all after-market: "shoebox" enclosures with a 640 MB hard drive and an RX50 compatible 5.25" floppy, a DSD-880 combo RX02 compatible 8" floppy drive plus hard drive, and a Cipher microstreamer 9-track tape drive. With a CIT-101 terminal on top.
In the right cabinet only the Q-bus system box. This one is amped up with a full 4 MB of DRAM, an i386 coprocessor system, and a MIPS 8800 coprocessor system. The coprocessors are Avalon Vaccelerators (AP/10 and AP/20) but we ported their driver and compiler support to RT-11.
IMG_20140402_171352
TNMOC trustee Kevin Murrell and Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
TNMOC trustee Kevin Murrell and Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
This CPU can be used to build PDP-11 computer with 22bit address bus.
Этот процессор применялся в ДВК-4 у него встроенный диспечер памяти адресующий память в 4 МБ.
TNMOC trustee Kevin Murrell and Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
TNMOC volunteer Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
TNMOC trustee Kevin Murrell operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
This is the only "selfie" I've taken with a cell phone front-side camera.
The actual subject is the poster on the wall, which I photographed for nostalgia's sake, having recently learned that a member of one of my Yahoo Groups was an architect for the PDP-11 family of computers at Digital Equipment Corporation. He mentioned the ill-fated PRO-350, so this poster immediately came to mind. Sadly, I have the poster but not one of the actual computers - though the LSI-11/73 in another photo is a close cousin.
IMG_20140402_171630
From L->R
Top row: DEC M8029 -- RXV21,Q-BUS RX02 INTERFACE,DUAL ; DEC M8186 -- CPU Processor LSI ; DEC M9400-YE/M9401 -- Bus extender ; DEC M8043 -- 4 Line ASYNC Interface Board DLV11-J ; DEC M8044-DK/M8044-DB/M8044-DE -- 32K Memory Modules
Bottom: DEC M7270 (SOLD) ; Terak 900007 -- Double Sided I/O Board UART Floppy Controller ; MMS 1122N3032 Rev D ; 6805-00168-0033 Rev H ; National Semiconductor 551103882-003A Rev A ; Artesyn Technologies 021-0217-000A - Digital I/O Board
pages and pages of hand tabled figures from 100s of surveys done in the forests and calculated by double longitudes & Bowditch from theodolite or compass, tape and Abney level over the years. From 14-7-72...
I used more than 50 programs on a Sharp 363P, HP 64 etc programmable calculators before there were PCs.
Many traverses were plotted at the F&TB, CSIRO, Yarralumla, on their small HP calculator driven HP plotter.
in Sept 1981.
I later enrolled in a computer course at the new Bruce TAFE and wrote BASIC programs on a PDP11 to plot many surveys and maps.
After a few trips to computer shows and many demonstrations, I then became the first to get an 80286, 80287 NEC APC IV Personal computer to run AutoCAD 2.5 to create and plot our maps.
This is a close up of the KDJ11-A's CPU. (The ceramic module consists of the DC334 data and DC335 control chips that were manufactured by Harris.) This is one of the processor boards can be found in a DEC PDP-11/73.
TNMOC trustee Kevin Murrell and Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
Running a BASIC benchmark, see technomorous.eu/post/137242752363 (in Czech language, sorry) and tables here: blog.i-logout.cz/retrobenchmarking.php
My monitor is not very good, as you may see :-(
TNMOC volunteer Tony Frazer operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
Doug Scott of Arrow Plastics' composite vintage label printer is made up of bits including a 1993 Maxtor RD54 hard disk, a DEC PDP11/83 and the case and serial cards from a 11/73 - "the oldest bits in the box, which go back to about 1987."
austin, texas
1977
motorola semiconductor plant
part of an archival project, featuring the photographs of nick dewolf
© the Nick DeWolf Foundation
Image-use requests are welcome via flickrmail or nickdewolfphotoarchive [at] gmail [dot] com
A Heathkit H11 microcomputer, based on the DEC LSI-11 microprocessor. Shown also are the Heathkit dual floppy drives, and the H19 ascii terminal. It was a pretty nice system for its day (circa 1981).
TNMOC trustee Kevin Murrell operating a PDP11 radar station computer donated by National Air Traffic Services and originally in use at West Drayton. Now restored to working condition at The National Museum of Computing, Bletchley Park, December 2008. Photo for TNMOC by John Robertson.
We were having a clear out at the office and came across several reels of punched paper tape, used to store some code for use on a DEC-PDP11 minicomputer (1970s vintage)
You can read about punched tape here:
en.wikipedia.org/wiki/Punch_tape
Punched tape has actually been around for a long time - since the 1840s when it was connected with telegraph messaging.
As a rough estimate if we assume one byte per row of holes then this image (size of 631KB) would require roughly 1200 kilometres of punched tape.