MSDOS.SYS -> MSDOS.COM

shaharhada

Commendable
Jul 27, 2020
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MSDOS.SYS is a system file in MS-DOS and Windows 9x operating systems. In versions of MS-DOS from 1.1x through 6.22, the file comprises the MS-DOS kernel and is responsible for file access and program management. MSDOS.SYS is loaded by the DOS BIOS IO.SYS as part of the boot procedure.[1] In some OEM versions of MS-DOS, the file is named MSDOS.COM.
What is the meaning of the bold sentence?
What are OEM versions of MS-DOS?
From:
https://en.wikipedia.org/wiki/MSDOS.SYS
Thanks for helpers.
 

USAFRet

Titan
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Mar 16, 2013
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"oem" = "original equipment manufacturer, "
A company such as Dell, who assembles and sells a whole PC. Including the operating system.

The version of DOC included with such a system may have been slightly different than the DOS you and I might buy off the shelf.

It may have included specific Dell customizations.
 
Reactions: shaharhada
I'm not sure how the licensing system was back then, but if it's like today, OEM versions of operating systems also have limited support for the end user. As in, Microsoft may not help you, they expect you to go to the OEM.
 

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