Related:

• MS-DOS: the operating system for Republicans.
• DOS is just an operating system that runs Windows 3.1.
• It is important to note that probably no large operating system using current design technology can withstand a determined and well-coordinated attack
  and that most such documented penetrations have been remarkably easy....
• BBS /B-B-S/ n. [common; abbreviation, `Bulletin Board System'] An electronic bulletin board system
  hat is, a message database where people can log in and leave broadcast messages for others grouped (typically) into topic groups....
• ping storm n. A form of DoS attack consisting of a flood of ping requests (normally used to check network conditions) designed to disrupt the normal activity of a system.
  This act is sometimes called `ping lashing' or `ping flood'....
• HTH // [Usenet: very common] Abbreviation: Hope This Helps (e.
  g. following a response to a technical question). Often used just before HAND. See also YHBT....
• MS-DOS:: /M-S-dos/ [MicroSoft Disk Operating System] n.
  A {clone} of {{CP/M}} for the 8088 crufted together in 6 weeks by hacker Tim Paterson, who is said to have regretted it ever since....
• HAND // [Usenet: very common] Abbreviation: Have A Nice Day.
  Typically used to close a Usenet posting, but also used to informally close email...
• TINC // [Usenet] Abbreviation: "There Is No Cabal".
  See backbone cabal and NANA, but note that this abbreviation did not enter use until long after the dispersal of the backbone cabal....