any of several single-user, command-driven operating systems for personal computers, especially MS DOS.
Other definitions for DOS (2 of 3)
Other definitions for DoS (3 of 3)
Computers. denial-of-service: DoS protection for web servers.
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How to use DOS in a sentence
In 1998, Joel Thomas Zimmerman was 16 years old, noodling around with vintage DOS music software like Impulse Tracker.
Despite signing paperwork and a checklist of DOS and don'ts, I was in way over my head.My ‘Kink’ Nightmare: James Franco’s BDSM Porn Documentary ‘Kink’ Only Tells Part of the Story | Aurora Snow | August 30, 2014 | THE DAILY BEAST
As Sherman herself starred in that series, so Franco stars–in drag–in his re-DOS.
He took pride in helping struggling Brazilians like Pereira DOS Santos.The Brutal Fall of Brazilian Billionaire Eike Batista | Mac Margolis | June 25, 2013 | THE DAILY BEAST
DOS Passos interweaved the stories of his more proletarian subjects with biographies of some well-known Americans.
At the end of the stone bridge, at the ponte DOS tres pontes, next to Recife, the guards are more numerous and strict.Journal of a Voyage to Brazil | Maria Graham
"Keep cool, Wes," MacHenery whispered to his opponent as they DOS-à-doed back into position.The Great Potlatch Riots | Allen Kim Lang
His brother Lawrence having fallen ill of consumption, Washington went with him to Barba-DOS, where he had an attack of smallpox.The Story of the Thirteen Colonies | H. A. (Hlne Adeline) Guerber
The "DOS Estrellas" Mine is yet another example of this successful district.Mexico | Charles Reginald Enock
There are very few lakes in Brazil, and only one worth speaking of—the Lagoa DOS Platos—which is 150 miles long.Martin Rattler | R.M. Ballantyne
British Dictionary definitions for DOS
disk-operating system, often prefixed, as in MS-DOS and PC-DOS; a computer operating system
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