PS may refer to any of the following:
1. PS, P/S, and PSU (power supply unit) are abbreviations for a power supply.
3. PS is short for PowerShell.
5. With computer file extensions, .ps is a PostScript file that contain vector or raster graphics and text. PostScript files can be printed by a PostScript printer, opened in many Adobe programs, or converted to a PDF (Portable Document Format) using Adobe Distiller. Today, these files are not as common with the introduction of PDF files.
8. The Internet domain suffix .ps is short for Palestinian territories.