Updated: 06/07/2019 by Computer Hope
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DOS may refer to any of the following:

1. Short for disk operating system, DOS is an acronym describing MS-DOS and the Windows command line. It generally refers to any operating system that runs from a disk drive. Today, dall operating systems can be considered disk operating systems.

2. Short for denial of service, a DoS attack attacks a networked computer by sending it an abnormally high number of requests, causing its network to slow down or fail. Since a single individual cannot generate enough traffic for a DoS attack, these attacks are usually run from multiple computers infected by worms or zombie computers for a DDoS.

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