* TOPS-10 Operating System for PDP-10 36-bit architecture ( True SMP since version 7. 01 )

Originally written to run on a Burroughs Corporation B6700 Main frame in Fortran IV, subsequently rewritten in SMALL and ported to a DEC PDP-10 Architecture ( on the Operating System TOPS-10 ) and IBM S360 Architecture ( on the Operating System VM / CMS ).

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 ).

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.

The original KL10 TOPS-10 ( also marketed as DECsystem-10 ) models ( 1080, 1088, etc.

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 may also be generated from archived original distribution " tapes ".

SYSTAT was also a command on the DEC TOPS-10 and RSTS / E computer operating systems by which one obtained the current general status of the running operating system.

Implementations expanded to included RSTS, TOPS-10 and TOPS-20 with communications between processors still limited to point-to-point links only.

TOPS-10 had a very robust API that used a mechanism called a UUO which is an acronym for Unimplemented User Operation.

Tymshare developed TYMCOM-X, derived from TOPS-10 but using a page-based file system like TOPS-20.

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.

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.

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.

In large machines there were other disk operating systems, such as IBM's VM, DEC's RSTS / RT-11 / VMS / TOPS-10 / TWENEX, MIT's ITS / CTSS, Control Data's assorted NOS variants, Harris's Vulcan, Bell Labs ' Unix, and so on.

TOPS-10 was running on the Mars by the summer of 1984, and TOPS-20 by early fall.

Both could run either TOPS-10 or TOPS-20 microcode and thus the corresponding operating system.

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.

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.

The KL10 emulation supports v. 442 of the KL10 microcode, which enables it to run the final versions of both TOPS-10 and TOPS-20.

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.

PDP-10 computers running the TOPS-10 operating system were labeled DECsystem-10 as a way of differentiating them from the PDP-11.

The Living Computer Museum of Seattle, Washington maintains a 2065 running TOPS-10, which is available to interested parties via telnet upon registration ( at no cost ) at their website.

The TOPS-10 implemented the concept of public, protected, and private member variables and methods, that later was integrated into Simula 87.

* TOPS-10 Documentation at bitsavers. org

Later MATHLAB was made available to users on PDP-6 and PDP-10 Systems running TOPS-10 or TENEX in universities.

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.

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 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.

The initial setting of this table may be altered, however, as described in the 7070/7074 Data Processing System Bulletin `` IBM 7070/7074 Compiler System: Operating Procedure '', form Aj.

* AROS Public License, license of AROS Research Operating System, formerly Amiga Research Operating System

* Be Inc., a software company and developer of the Be Operating System

The Supreme Court let a 9th circuit decision stand, and Data General was eventually forced into licensing the Operating System software because it was ruled that restricting the license to only DG hardware was an illegal tying arrangement.

rect 1 181 250 270 Operating System

Even though each 1541 had its own on board disk controller and disk operating system, it was not possible for a user to command two 1541 drives to copy a disk ( one drive reading and the other writing ) as with older dual drives like the 4040 and 8050 that were often found with the PET computer, and which the 1541 was backward compatible to ( it could read 4040 disks but not write to them since its internal Operating System was essentially the same ).

Disk Operating System ( specifically ) and disk operating system ( generically ), most often abbreviated as DOS, refer to an operating system software used in most computers that provides the abstraction and management of secondary storage devices and the information on them ( e. g., file systems for organizing files of all sorts ).

To have one or the other was a mark of distinction and prestige, and so was having the Disk sort of an Operating System.

Mature versions of the Commodore, SWTPC, Atari and Apple home computer systems all featured a disk operating system ( actually called ' DOS ' in the case of the Commodore 64 ( CBM DOS ), Atari 800 ( Atari DOS ), and Apple II machines ( Apple DOS )), as did ( at the other end of the hardware spectrum, and much earlier ) IBM's System / 360, 370 and ( later ) 390 series of mainframes ( e. g., DOS / 360: Disk Operating System / 360 and DOS / VSE: Disk Operating System / Virtual Storage Extended ).

A complete Disk Operating System was produced for the Dragon by a third-party supplier, Premier Microsystems located near Croydon, South London.

* EPOCH, European Parallel Operating System based on ChorusOS

In 2006, Brinkmann met with Jonathan Shapiro ( a primary architect of the Coyotos Operating System ) to aid in and discuss the use of the Coyotos kernel for GNU / Hurd.

IBM enhanced one of GM-NAA I / O's successors, the SHARE Operating System, and provided it to customers under the name IBSYS.

Operating systems for the System / 360 family included OS / 360 ( with PCP, MFT, and MVT ), BOS / 360, TOS / 360, and DOS / 360.

* 1992 – 386BSD is released by Lynne Jolitz and William Jolitz beginning the Open Source Operating System Revolution.

* Kent Applicative Operating System, a functional operating system concept