Highgate's PDP-8 Page
Highgate now has a new 60 GB hard drive! Total disk space is now
about 67 GB. If you notice any anomalies, drop Kevin a line at
Last Update: January 10th, 2003
This web page contains a number of documents of relevance to those interested
in the Digital Equipment Corporation's PDP-8 minicomputer.
Documents cover pdp-8 hardware, software, and supporting materials.
This web page is maintained by Kevin McQuiggin, firstname.lastname@example.org.
The documents consist of scanned sets of images in TIFF format. They were
created by David Gesswein
email@example.com. Other scans have been contributed by Doug
FOCAL 69 is made available courtesy of DEC. It's a copy of the package
distributed with Bob Supnik's pdp-8 simulator, made available here in both RIM
and text formats for your convenience.
The software utilities rim and send were written
by Kevin McQuiggin. They are basic but they work for me. Consider them "alpha"
Highgate is a FreeBSD machine.
It's a Pentium 133 MHz box with 32 MB RAM and 6.6 GB HD space.
The machine is located in the Telematics Lab
at Simon Fraser University in Burnaby, British Columbia, Canada.
Utilities are available from
FFII (Forderverein fur eine Freie Informationelle Infrastruktur)
which will convert the grouped TIFF files on this site to PDF format!
These utilities are available here
Web server access statistics are now available:
- Total stats prior to April 7th, 2000
- Total stats Stats April 7th, 2000 through
December 22nd, 2000
- Total stats Stats December 22, 2000 through
August 7th, 2001
- Total stats Stats August 8th, 2001 through
July 14th, 2002
- Total stats Stats July 14th, 2002 through
September 18, 2004
- Total stats Stats September 19th, 2004 through
August 7th, 2005
- Total stats Stats August 8th, 2005 through
August 2nd, 2006
- Total stats Stats August 3rd, 2006 through
May 30th, 2007
- Total stats Stats May 31, 2007 through
January 8, 2010
- Current stats!
Kevin's wish list
contains a list of hardware, software, and documentation that I'm currently
- Print Sets:
- FOCAL69, in RIM loader format
- rim.c, a program that converts textual
input in the form of <addr> <instruction> into
RIM loader format
- send.c, a program that handshakes with
the toggled-in RIM loader on a pdp-8 and uploads RIM format files to the
machine for execution
Improved send.c, with several convenient
features. Written by Pete Turnbull,
- FOCAL69, in text format, suitable
for processing by rim.c above
- A collection of BASIC games and utilities.
These run under OS/8. Courtesy of DEC.
- All these BASIC programs in tarred-gzipped
- PDP-8/E Instruction Test 1 (source
code in TIF format)
- PDP-8/E Instruction Test 2 (source
code in TIF format)
- BIN Loader, Documentation and
Application Notes (May 10, 1967)
Updated BIN Loader in text format, suitable for
processing by rim.c above.
Correction provided by Pete Turnbull, firstname.lastname@example.org
- Original BIN Loader in text format, suitable for
processing by rim.c above
- The Dump and Restore utilities, a set
of programs that allow you to make image backups of RX01 diskettes, RK05
disks, and Dectapes from your pdp-8 on a PC, and restore these images to their
original media. Format compatible with that used by Bob Supnik's pdp-8 emulator.
A tarred-gzipped archive for UNIX users. Written by David Gesswein
- These utilities, in DOS/Windows ZIP
The Small Computer Handbook (1966 Edition), Sections 1 and 2
- This document scanned and contributed by Doug Coward,
- This is a large file (~69MB) but contains lots of historically
interesting information on the original pdp-8!
This DEC handbook states the following on the rear cover:
"This first edition of the DIGITAL Small Computer Handbook is designed
to be a sourcebook of basic computer technology for the computer user and
student. In addition to detailed material on computer fundamentals and
programming examples, this book includes three user handbooks covering
Digital's popular Family of Eight scientific/engineering computers -
the PDP-8, LINC-8, and the new PDP-8/s."
- The PDP-8/e Small Computer Handbook (1972):
- OS/8 Reference:
- OS/8 Handbook (1979):
- OS/8 Basic:
- PDP-8/i Hardware Maintenance Manual (July, 1969):
- PDP-8/l Hardware:
- PDP-8/e/f/m Hardware Maintenance Manual (September, 1973):
- PDP-8/e/f/m Processor Maintenance Manual (January, 1974):
- Peripheral Maintenance/Documentation:
- DM01 Data Multiplexer
- The RK05 Disk Drive:
- The RX01/RX02 Floppy Drive:
- The VT52 Terminal:
- TU56 DECtape:
- PC04/PC05 Paper-Tape Reader/Punch:
- RK8E Disk Controller:
- KL8E Serial I/O Module:
- DK8E Clock:
- ASR33 Teletype Unit:
Bulletin 310B Technical Manual 33 Teletypewriter Sets RO, KSR, ASR Volume 1 Part 1, October 1971
Bulletin 310B Technical Manual 33 Teletypewriter Sets RO, KSR, ASR Volume 1 Part 2, October 1971
Bulletin 310B Technical Manual 33 Teletypewriter Sets RO, KSR, ASR Volume 1 Part 3, October 1971
Bulletin 310B Technical Manual 33 Teletypewriter Sets RO, KSR, ASR Volume 2 Part 1, March 1971
Bulletin 310B Technical Manual 33 Teletypewriter Sets RO, KSR, ASR Volume 2 Part 2, March 1971
Bulletin 11848 33 Page Printer Set (ASR, KSR and RO) Parts, Februrary 1971
ASR 33 Teletype Print Set
- ETOS Version 5B
- General Reference, System Performance Reports, Other Documentation:
- Loaders and Support Software:
Readin-Mode (RIM) Punch, November 1966
Binary Punch (ASR 33 or 75A) (For
BIN loader), March 1965
Octal Memory Dump, March 1965
High Speed Reader-Punch Tests, March 1977
Read-In-Mode Loader (RIM), February
Binary Loader May 1967 (BIN)
Random AND Test, June 1971
Random TAD Test, June 1971
Random ISZ Test, June 1971
Random DCA Test, June 1971
Random JMP Test, June 1971
Basic JMP-JMS Test, June 1971
Random JMP-JMS Test, June 1971
PDP-8E Memory Power On/Off Test, June 1971
- TD8E DECtape:
- Coming Soon:
- New documents that haven't been indexed properly
yet. See readme.txt for an index.
- DEC's Introduction to Programming, 1972
- Here's a list of upcoming documents!
Got a request? Email Kevin at the address below!
- Click here for some photos of pdp-8 systems,
peripherals, and related items. These are mostly from the Small Computer
- Here's a picture of Kevin's pdp-8/f, with dual
RX01 floppies. This machine is fully operational, and runs (amongst other
software) OS/8 and FOCAL.
- This is definitely off-topic, but here's a photo of Kevin's
pdp-11/45. This old fellow needs some work, but
will hopefully be back running soon!
- While off-topic, here's a recent view of Kevin's
I now have an older, black-and-white webcam! Check out the current
situation in the basement here!
Disk, Magnetic Tape, and Paper Tape Images:
- Handy Information:
- Problems getting OS/8 Fortran to run under Bob Supnik's simulator?
Here's a solution!
- Need to make a bootable disk, but don't know how?
Click here for the procedure.
- Off Topic Files and Other Info:
How to View These Scanned Documents:
To view these documents you'll need a utility that can read TIFF Group 4
One package that can do this is "Imaging Pro" from Eastman Software.
Here's a link to the Eastman web site at
http://www.eastmansoftware.com/products/ImagingPro for some information
on this package. Here's a
direct link to the download page for those who are impatient!
Paint Shop Pro 5 from JASC Software can also
load these documents. A multiple page document is read with each page coming
up in a separate Paint Shop Pro window. While not optimal, this works, and
Paint Shop Pro is a great application.
- Are you a Mac user? If so, here's a link to
Graphic Converter, a utility that will let you read these TIFF files, and
optionally convert them to other formats, including PDF. This link was provided
by Al Kossow, email@example.com.
- Other TIFF to PDF conversion utilities from FFII (contributed by
Comments? Contact Kevin McQuiggin at firstname.lastname@example.org