Optical performance monitoring — (OPM) is used for managing high capacity dense wavelength division multiplexing (DWDM) optical transmission and switching systems in Next Generation Networks (NGN). OPM involves assessing the quality of data channel by measuring its optical… … Wikipedia
Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… … Wikipedia
Power Mac G4 — The Graphite Power Mac G4 Developer Apple Inc. Release date August 31, 1999 Discontinued June 9, 2004 … Wikipedia
Power line communication — or power line carrier (PLC), also known as power line digital subscriber line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN), or broadband over power lines (BPL) are systems for carrying data on a conductor… … Wikipedia
Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… … Wikipedia
Optical mouse — A wireless optical mouse An optical computer mouse or optic mouse uses a light emitting diode and photodiodes to detect movement relative to a surface, unlike a mechanical mouse which has a ball which rotates orthogonal shafts which drive chopper … Wikipedia
Optical disc drive — A CD/DVD ROM Drive A Blu ray (BD RE DL) writer tray in a Sony Vaio E series laptop … Wikipedia
Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans … Wikipedia
Power Glove — Powerglove redirects here. For the band, see Powerglove (band). Power Glove The American Power Glove, manufactured by Mattel Manufacturer Mattel, PAX Generation Third generation era … Wikipedia
Power Macintosh G3 — Infobox Computer name = Power Macintosh G3 (Beige) developer = Apple Computer, Inc. type = Desktop photo = caption = The beige Power Macintosh G3 minitower first release date = November, 1997 discontinuation date = January, 1999 processor =… … Wikipedia
Electric power transmission — Electric transmission redirects here. For vehicle transmissions, see diesel electric transmission. 400 kV high tension transmission lines near Madrid Electric power transmission or high voltage electric transmission is the bulk transfer of… … Wikipedia