I'm keen on old registering gadgets. For the most part, machines were made before 1982, however with a couple of special cases. A portion of these machines are notable and was industrially effective. Others have blurred into lack of clarity, regardless of having progressed to the cutting edge.
I've attempted to give some specialized data of a couple of the intriguing machines. Shockingly I have relatively little ideal opportunity to spend on this undertaking.
As a rule, nothing recorded on this page is being made available for purchase, except maybe the things in the exchange segment.
Hardware: Advanced Micro Devices — AT&T — Alpha Micro — Apple — Atari — Commodore — DEC — the digital group — Electronic Product Associates — Epson — Fortune Systems — Friden — Heathkit — HP — IBM — IMS — Intel — Linn — Motorola — National Semiconductor — Netronics — Non-Linear Systems — Noval — OAE — Ohio Scientific — Osborne — Panasonic — Processor Technology — Rockwell — Sage/Stride — Scion — Sun — Tandy/Radio Shack — Tektronix — Terak — Texas Instruments — Western Digital — Xerox — Zenith
Subject: What is a PDP?
In 1957, Ken Olson and Harlan Anderson founded Digital Equipment
Corporation (DEC), capitalized at $100,000, and 70% owned by American
Research and Development Corporation. Olson and Anderson had designed
major parts of the AN/FSQ-7, the TX-0, and the TX-2 computers at
Lincoln Labs. They wanted to call their company Digital Computer
Corporation, but the venture capitalists insisted that they avoid the
term Computer and hold off on building computers.
With facilities in an old woolen mill in Maynard Massachusetts, DEC's
first product was a line of transistorized digital "systems modules"
based on the modules used in building TX-2 at Lincoln Labs; these
were plug-in circuit boards with a few logic gates per board. Starting
in 1960, DEC finally began to sell computers (the formal acceptance of
the first PDP-1 by BBN is reported in Computers and Automation, April
1961, page 8B). Soon after this, there were enough users that DECUS,
the Digital Equipment Computer User's Society was founded.
DEC's first computer, the PDP-1, sold for only $120,000 at a time when
other computers sold for over $1,000,000. (A good photo of a PDP-1 is
printed in Computers and Automation, Dec. 1961, page 27). DEC quoted
prices as low as $85,000 for minimal models. The venture capitalist's
insistence on avoiding the term computer was based on the stereotype
that computers were big and expensive, needing a computer center and a
large staff; by using the term Programmable Data Processor, or PDP, DEC
avoided this stereotype. For over a decade, all digital computers sold
by DEC were called PDPs. (In early DEC documentation, the plural form
"PDPs" is used as a generic term for all DEC computers.)
In the early 1960s, DEC was the only manufacturer of large computers
without a leasing plan. IBM, Burroughs, CDC, and other computer
manufacturers leased most of their machines, and many machines were
never offered for outright sale. DEC's cash sales approach led to the
growth of third-party computer leasing companies such as DELOS, a
spinoff of BB&N.
DEC built several different computers under the PDP label, with a
huge range of price and performance. The largest of these are fully
worthy of large computer centers with big support staffs. Some early
DEC computers were not built by DEC. With the PDP-3 and LINC,
for example, customers built the machines using DEC parts and
The Online Software Museum provides "hands-on" access to simulators via telnet
Memoir of a Homebrew Computer Club Member by Bob Lash
Vintage Computer Festival
Al's Minicomputer Orphanage
Steve's Code Archive
Rich Cini's Classic Computing Resources
Blinkenlights Archaeological Institute
Stefan's Computer Collection
The Old Computers List
The Retrocomputing Museum
Computer History and Simulation
Kevan Heydon's collection
Carl Friend's Minicomputer Museum
The Computer Museum (Boston)
Online Computer History Bookstore/Museum by Mark Metzler
The Computer History Association of California (CHAC)
The Historical Computer Society
The History of Computing (Virginia Tech)
The Jefferson Computer Museum, including info on Terak, the UCSD P-System, and more
Museum of the Department of Computer Science, University of Virginia
The Machine that Changed the World (WGBH television series)
The Virtual Museum of Computing
Nixie Indicators and Decimal Counting Tubes by Tom Jennings
Fine instruments of the past by Tom Jennings has information regarding the Teletype Model 28 and photographs.
Belgian Microcomputer Museum