The term "DSP", when used by itself, can refer to:

Computing

• The science and engineering discipline of digital signal processing.
• The microprocessor class of digital signal processors.
• Dylan Server Pages is a template engine for providing dynamic web site content using the Dylan language.

Politics

• The Democratic Left Party (Turkey) (Demokratik Sol Parti)
• The German State Party (Deutsche Staatspartei), a minor political party of the Weimar Republic period.
• One of several (unrelated) political parties called the Democratic Socialist Party:
  • Democratic Socialist Party (Australia), now the Democratic Socialist Perspective
  • Democratic Socialist Party (Japan)
  • Democratic Socialist Party (Prabodh Chandra) (India)

Other

• The sterilisation process Dry Sterilisation Process for the cold and fast sterilisation of surfaces.
• The U.S. Air Force Defense Support Program early-warning satellites.
• Deputy Superintendent in the Singapore Police Force
• The Deutscher Spiele Preis, a board games award
• In the form dsp or d.s.p. this abbreviation can stand for the Latin phrase decessit sine prole ("died without issue"). This often appears in genealogical tree-diagrams.

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