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TOPS-10 evolved from the earlier " Monitor " software for the PDP-6 and-10 computers ; this was renamed TOPS-10 in 1970.
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TOPS-10 and from
Tymshare developed TYMCOM-X, derived from TOPS-10 but using a page-based file system like TOPS-20.
Copies of DEC's original distribution tapes are available as downloads from the Internet so that a running TOPS-10 or TOPS-20 system may be established.
PDP-10 computers running the TOPS-10 operating system were labeled DECsystem-10 as a way of differentiating them from the PDP-11.
The TOPS-10 System ( Timesharing / Total OPerating System ) was a computer operating system from Digital Equipment Corporation ( DEC ) for the PDP-10 ( or DECsystem-10 ) mainframe computer launched in 1967.
TOPS-10 may also be generated from archived original distribution " tapes ".
The following programming languages were implemented on TOPS-10 as contributions from DECUS members:
Aside from the CAP capability computer the compiler was ported to systems including CMS, TOPS-10 and Z80.
TOPS-10 and Monitor
However, the PDP-6 is historically important as the platform that introduced " Monitor ", an early time-sharing operating system that would evolve into the widely used TOPS-10.
The original PDP-10 operating system was simply called " Monitor ", but was later renamed TOPS-10.
Early versions of Monitor and TOPS-10 formed the basis of Stanford's WAITS operating system and the Compuserve time-sharing system.
* DEC PDP-6 Time-sharing Monitor -> TOPS-10 -> TSS-8, RSTS-11, RSX-11 -> VAX / VMS
TOPS-20 is almost entirely unrelated to the similarly named TOPS-10, but it was shipped with the PA1050 TOPS-10 Monitor Calls emulation facility which allowed most, but not all, TOPS-10 executables to run unchanged.
WAITS was a heavily-modified variant of Digital Equipment Corporation's Monitor operating system ( later renamed to, and better known as TOPS-10 ) for the PDP-6 and PDP-10 mainframe computers, used at the Stanford Artificial Intelligence Laboratory ( SAIL ) up until 1990 ; the mainframe computer it ran on also went by the name of " SAIL ".
TOPS-10 and software
As a matter of policy, DEC did not update PA1050 to support later TOPS-10 additions except where required by DEC software.
Strong arguments were made for the continued use of TOPS-10, in order to keep their existing software running with minimum effort.
In the end they decided to make a new system, but include an emulation library that would allow it to run existing TOPS-10 software with minor effort.
In fact, much of the OS / 8 software system was deliberately designed to mimic, as closely as possible, the TOPS-10 operating environment.
TOPS-10 and for
The KS10 emulation supports both ITS v. 262 microcode for the final version of KS10 ITS and DEC v. 130 microcode for the final versions of KS TOPS-10 and TOPS-20.
* TOPS-10 Operating System for PDP-10 36-bit architecture ( True SMP since version 7. 01 )
Digital Equipment Corporation developed many operating systems for its various computer lines, including TOPS-10 and TOPS-20 time sharing systems for the 36-bit PDP-10 class systems.
In the TOPS-10 operating system ( for the DEC PDP-10 computer ), the command was used to invoke the TECO editor to create a file ; if given the file name argument, so that the command was, it would pause and respond before creating the file.
** WAITS ( SAIL, Stanford Artificial Intelligence Laboratory, time-sharing system for DEC PDP-6 and PDP-10, later TOPS-10 )
The games worked by having one instance of the program running on each terminal ( for each player ), sharing a segment of shared memory ( known as the " High segment " in the OS TOPS-10 ).
In 1978, there were half a dozen different operating systems for the PDP-10: ITS ( MIT ), WAITS ( Stanford ), TOPS-10 ( DEC ), CMU TOPS-10 ( Carnegie Mellon ), TENEX ( BBN ), and TOPS-20 ( DEC, based on TENEX ).
This was until a manager at Tymnet wrote a small FORTRAN IV program to maintain a list of problem reports and track their status in a System 1022 database ( a hierarchical database system for TOPS-10 published by Software House ).
TOPS-10 had a very robust API that used a mechanism called a UUO which is an acronym for Unimplemented User Operation.
The TOPS-10 name was first used in 1970 for release 5. 01.
The easiest way for the hobbyist to run TOPS-10 is to acquire a suitable emulator and an operating system image.
They are described in the documentation for the succeeding TOPS-10 on the PDP-10.
* SED, a text editor for the TOPS-10, TOPS-20, and VMS operating systems
In the 1970s, Tymshare, which had used Digital Equipment's operating system TOPS-10 for its PDP-10s, began independent work on the OS for their systems, called it TYMCOM-X, and implemented a file system that supported random access, paging with working sets, and spawnable processes.
Command structure was similar to the command structure of TOPS-10, the operating system for the PDP-10 ; commands could be abbreviated to their most simple and unique form.
TOPS-10 and PDP-6
Later MATHLAB was made available to users on PDP-6 and PDP-10 Systems running TOPS-10 or TENEX in universities.
TOPS-10 and ;
Most ( but not all ) machines sold to run TOPS-10 were painted " Blasi Blue ", whereas most TOPS-20 machines were painted " Terracotta " ( often mistakenly called " Chinese Red " or orange ; the actual name of the color on the paint cans was Terracotta ).
TOPS-10 and was
TOPS-10 was running on the Mars by the summer of 1984, and TOPS-20 by early fall.
The TOPS-10 implemented the concept of public, protected, and private member variables and methods, that later was integrated into Simula 87.
Before the widespread use of Unix, TOPS-10 was a particularly popular system in universities, and in the early ARPANET community.
) This usage was influenced by the device prefixes used in Digital Equipment Corporation's TOPS-10 operating system.
TOPS-20 was preferred by most PDP-10 users over TOPS-10 ( at least by those who were not ITS or WAITS partisans ).
Known as the DECsystem-10 in the marketplace, the normal operating system was TOPS-10.
The main operating system used on the machine was an early version of what later became TOPS-10, and several sites made custom versions of the system, which was available in source code form.
OS / 8's CCL was directly patterned after the CCL found on Digital's PDP-10 systems running TOPS-10.
As late as the mid 1980s, PIP was still in common use on TOPS-10, TOPS-20 and PDP-11 systems.
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