Dictionary.com

MS DOS

or MS-DOS

[ em-es -daws, -dos ]
/ ˈɛmˌɛs ˈdɔs, -ˈdɒs /
Save This Word!

Trademark.

an operating system for personal computers, originally developed by Microsoft for IBM computers.

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for MS DOS

MS-DOS
/ (ɛmˈɛsˈdɒs) /

noun

trademark computing a type of disk operating system
C20: from M (icro) s (oft), the company that developed it, + DOS
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Hate Typos? Get Grammar Coach