VERSAdos is an

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

dating back to the early 1980s for use on the

Motorola 68000 The Motorola 68000 (sometimes shortened to Motorola 68k or m68k and usually pronounced "sixty-eight-thousand") is a 16/32-bit complex instruction set computer (CISC) microprocessor, introduced in 1979 by Motorola Semiconductor Products Sector ...

development system called the ''

EXORmacs VERSAdos is an operating system dating back to the early 1980s for use on the Motorola 68000 development system called the '' EXORmacs'' which featured the VERSAbus and an array of option cards. They were typically connected to CDC Phoenix disk dr ...

'' which featured the

VERSAbus VMEbus (Versa Module Eurocard bus) is a computer bus standard physically based on Eurocard sizes. History In 1979, during development of the Motorola 68000 CPU, one of their engineers, Jack Kister, decided to set about creating a standard ...

and an array of option cards. They were typically connected to CDC Phoenix disk drives running one to four 14-inch platters. The EXORmacs was used to emulate a 680xx processor in-circuit, speeding development of 680xx based systems. It also hosted several compilers and assemblers. VERSAdos and the EXORmacs were produced by

Motorola Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded by brothers Paul and Joseph Galvin in 1928 and had been named Motorola since 1947. Many of Motorola's products had been ...

's Microsystems Division.

Overview

VERSAdos was a

real-time Real-time, realtime, or real time may refer to: Computing * Real-time computing, hardware and software systems subject to a specified time constraint * Real-time clock, a computer clock that keeps track of the current time * Real-time Control Syst ...

multi-user Multi-user software is computer software that allows access by multiple users of a computer. Time-sharing systems are multi-user systems. Most batch processing systems for mainframe computers may also be considered "multi-user", to avoid leavi ...

operating system. It was the follow on product to the single user MDOS that ran the 6800 development system called the

EXORciser The 6800 ("''sixty-eight hundred''") is an 8-bit microprocessor designed and first manufactured by Motorola in 1974. The MC6800 microprocessor was part of the M6800 Microcomputer System (later dubbed ''68xx'') that also included serial and parall ...

. Both systems features a harness with a

CPU socket In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the centr ...

compatible connector. A Modula 2 compiler was ported to VERSAdos.

Commands

The following list of commands and utilities are supported by VERSAdos.M68000 Family VERSAdos System Facilities Reference Manual
/ref> * ^ * ACCT * ARGUMENTS * ASSIGN * BACKUP * BATCH * BSTOP * BTERM * BUILDS * BYE * CANCEL * CHAIN * CLOSE * CONFIG * CONNECT * CONTINUE *

COPY Copy may refer to: *Copying or the product of copying (including the plural "copies"); the duplication of information or an artifact **Cut, copy and paste, a method of reproducing text or other data in computing **File copying **Photocopying, a pr ...

* CREF *

DATE Date or dates may refer to: * Date, the fruit of the date palm (''Phoenix dactylifera'') * Jujube, also known as red date or Chinese date, the fruit of ''Ziziphus jujuba'' Social activity *Dating, a form of courtship involving social activi ...

* DEFAULTS *

DEL Del, or nabla, is an operator used in mathematics (particularly in vector calculus) as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes ...

* DIR * DMT * DUMP * DUMPANAL * ELIMINATE * EMFGEN * END * FREE *

HELP Help may refer to: Arts, entertainment, and media Films * Help (2010 film), ''Help'' (2010 film), a Bollywood horror film * Help (2021 theatrical film), ''Help'' (2021 theatrical film), a British psychological thriller film * Help (2021 TV ...

* INIT * LIB * LIST * LOAD * LOGOFF * MBLM * MERGEOS * MIGR * MT * NEWS * NOARGUMENTS * NOVALID * OFF * OPTION * PASS * PASSWORD * PATCH * PROCEED * PRTDUMP * QUERY * R? * RENAME * REPAIR * RETRY * SCRATCH * SECURE * SESSIONS * SNAPSHOT * SPL * SPOOL * SRCCOM *

START Start can refer to multiple topics: * Takeoff, the phase of flight where an aircraft transitions from moving along the ground to flying through the air * Starting lineup in sports * Track and field#Starts use in race, Starts use in sport race * S ...

* STOP * SWORD * SYSANAL * TERMINATE *

TIME Time is the continuous progression of existence that occurs in an apparently irreversible process, irreversible succession from the past, through the present, and into the future. It is a component quantity of various measurements used to sequ ...

* TRANSFER * UPLOADS * USE * VALID

References

External links

http://bitsavers.org/pdf/motorola/versados/
* https://www.ricomputermuseum.org/collections-gallery/small-systems-at-ricm/motorola-exormacs-development-system Discontinued operating systems Motorola {{operating-system-stub

Overview

Commands

See also

References

External links