Timeline for 36-bit computers
Originally from http://www.digital.com/timeline/
Here are selected links into the timeline that refer to the PDP-6, PDP-10
and relevant peripherials.
Notably abscent from the list above are the dates when DEC announced
multiprocessing (master/slave on 10/55 and 10/77), symmetric multiprocessing
(10/88 and 10/99), Model-B backplane, and the clustered file system (TOPS-20).
- 1963 PDP-6
- 1964 PDP-6
unveiled, only 26 built.
- 1964 The Monitor,
which eventually evolved into TOPS-10. The system programs resided
on DECtape, leading to sections in the Monitor which checked for
"Is SYS: rewinding?".
- 1964 DECtapes
were used on the PDP-6 and PDP-7 for file storage. The tapes
had 522 blocks of 128 words each (640 7-bit bytes per block)
and could only hold 22 file names.
- 1965 Remote Access,
logging in to a PDP-6 in Massachusetts from Autralia using a TELEX
terminal (5-bit shift code).
- 1967 PDP-10 debuts.
The KA-10 was popular with universities, research labs, and commercial
- 1967 M series modules
used integrated circuits instead of individual transistors, and were
the basis for the KI-10 processor.
- 1970 VT05
was the predecessor to the VT52. (It had only 12 lines of text.)
- 1971 DECsystem-10
is the new name for the PDP-10 computer. Model 10/40 was diskless,
Model 10/50 had disks. [The picture shows a KI-10 Model 10/70 with
several VT05 (12 lines by 80 columns) terminals.]
- 1972 KI-10 CPU
was the successor to the KA. Called a DECsystem-10 Model 10/70.
- 1974 LA36 DECwriter
terminals replace ASR-33 Teletypes as terminal of choice. (300 baud.)
- 1974 KL-10 CPU
introduced, sold as DECsystem-10/80 and DECsystem-10/90.
- 1975 VT52 replaced
the VT05. (This video terminal had a buzzer instead of a bell.)
- 1976 DECSYSTEM-20
Model 20/40 was the lowest-priced general-purpose timesharing
system (cheaper due to lack of cache in the KL-10 CPU).
- 1976 TOPS-20
was the indirect descendent from TOPS-10. (TOPS-20 was a direct
descendent from BB&N's TENEX operating system).
- 1977 ARPAnet
comes to the PDP-10.
- 1978 DECsystem-2020
introduced as "the world's lowest cost mainframe computer system".
Can anyone identify the KS-10 developers in the picture?
- 1978 VT100 became
the industry standard.
- 1984 36-bit
architechture begins to fade.. In May, the 36-bit follow-on
processor (aka "Jupiter", the KC-10) was cancelled.
Maintained by Joe Smith at email@example.com