VERSAdos#EXORmacs

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| name = VERSAdos

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| developer = Motorola Microsystems Division

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| working state = Discontinued

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| released = {{Start date and age|1980s}}

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| language = English

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| supported platforms = Motorola 68000

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| ui = Command-line interface

| license = Proprietary

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VERSAdos is an operating system dating back to the early 1980s for use on the Motorola 68000{{Cite journal|last1=Wing Ng|first1=Kam|last2=Tong|first2=Chi Hung|last3=Lee|first3=Hung|date=November 1984|title=A Unix-to-Versados link|journal=Interfaces in Computing|volume=2|issue=4|pages=299–308|doi=10.1016/0252-7308(84)90051-5|issn=0252-7308|quote=Versados is a multitasking operating system for the Motorola 68000 microprocessor.}} development system called the EXORmacs which featured the VERSAbus 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's Microsystems Division.