: the operating system of a computer that can be stored on and run off of a computer disk drive
Examples of dos in a Sentence
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Ashley Capoot,jordan Novet, CNBC, 11 May 2026
Microsoft then licensed this operating system to IBM as PC-DOS while retaining the ability to sell the operating system to other companies.
—Andrew Cunningham, ArsTechnica, 30 Apr. 2026
La Habra, 25-21, 25-18 DOS PUEBLOS TOURNAMENT Canyon/Canyon Country def.
—Ocvarsity Sports Staff, Oc Register, 14 Mar. 2026
In November 1985, the company launched Windows, a graphical operating environment layered on top of its operating system MS-DOS, which is primitive by modern standards, but radical for its time.
—Catherina Gioino, Fortune, 13 Mar. 2026
In May 2025, investigators obtained voting records for Philadelphia County from the Philadelphia City Commissioners (PCCO) and the Pennsylvania Department of State (DOS) via a subpoena.
—Louis Casiano, FOXNews.com, 9 Mar. 2026
As part of her entry into DOS, Allison wore permanent jewelry at Keith’s behest.
—Elisabeth Garber-Paul, Rolling Stone, 25 Nov. 2025
There's also a 3-inch smart screen, which can be used for system control and visual feedback, but can also run DOS games or use the onboard NPU to run basic AI.
—PC Magazine, 3 Nov. 2025
Another was Steyn van Ark, a year older, who plays at DOS Kampen.
—Daniel Taylor, New York Times, 13 Sep. 2025
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Noun
The deal allowed Microsoft to do business around DOS with several other PC makers, leading the software to become pervasive.
—Ashley Capoot,jordan Novet, CNBC, 11 May 2026
Microsoft then licensed this operating system to IBM as PC-DOS while retaining the ability to sell the operating system to other companies.
—Andrew Cunningham, ArsTechnica, 30 Apr. 2026
La Habra, 25-21, 25-18 DOS PUEBLOS TOURNAMENT Canyon/Canyon Country def.
—Ocvarsity Sports Staff, Oc Register, 14 Mar. 2026
In November 1985, the company launched Windows, a graphical operating environment layered on top of its operating system MS-DOS, which is primitive by modern standards, but radical for its time.
—Catherina Gioino, Fortune, 13 Mar. 2026
In May 2025, investigators obtained voting records for Philadelphia County from the Philadelphia City Commissioners (PCCO) and the Pennsylvania Department of State (DOS) via a subpoena.
—Louis Casiano, FOXNews.com, 9 Mar. 2026
As part of her entry into DOS, Allison wore permanent jewelry at Keith’s behest.
—Elisabeth Garber-Paul, Rolling Stone, 25 Nov. 2025
There's also a 3-inch smart screen, which can be used for system control and visual feedback, but can also run DOS games or use the onboard NPU to run basic AI.
—PC Magazine, 3 Nov. 2025
Another was Steyn van Ark, a year older, who plays at DOS Kampen.
—Daniel Taylor, New York Times, 13 Sep. 2025
Cite this Entry
“Dos.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dos. Accessed 21 May. 2026.
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