DOS (disambiguation)

DOS is an acronym for each of the following:

• The DOS operating systems for the IBM-compatible personal computer, including MS-DOS, PC-DOS, DR-DOS, and FreeDOS.
• Any disk operating system — an operating system that resides on a disk.
• The United States Department of State — the Cabinet-level agency in charge of United States foreign affairs.
• Density of states is a property in condensed matter physics.

DoS is an acronym for each of the following:

• A denial-of-service attack (DoS attack) is an attack in which no access to the system(s) is gained, but rather a loss of service is incurred, typically the loss of network connectivity and services.
• In health insurance, a date of service is the date on which a patient receives care.
• Director of Studies .

dos could refer to any of the following:

• In the Spanish language, dos is the number two.
• dos is a band that consists of the husband and wife bass duo Mike Watt and Kira Roessler.