optical pen — UK US noun [countable] [singular optical pen plural optical pens] computing a small piece of electronic equipment that you move across a printed page in order to store the words either in its own memory or in your computer … Useful english dictionary
optical pen — optical ,pen noun count COMPUTING a small piece of electronic equipment that you move across a printed page in order to store the words either in its own memory or in your computer … Usage of the words and phrases in modern English
Optical character recognition — Optical character recognition, usually abbreviated to OCR, is the mechanical or electronic translation of scanned images of handwritten, typewritten or printed text into machine encoded text. It is widely used to convert books and documents into… … Wikipedia
Optical scan voting system — Election technology Certification of voting machines Independent Testing Authority (ITA) NVLAP VVSG End to end auditable voting systems Help America Vote Act Independent verific … 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 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
Olympus PEN E-P1 — Type Micro Four Thirds, interchangeable lens camera Sensor Four Thirds System 18.00 × 13.50 mm Live MOS Maximum … Wikipedia
Olympus PEN E-P2 — Type Micro Four Thirds, interchangeable lens camera Sensor Four Thirds System 18.00 × 13.50 mm Live MOS Maximum … Wikipedia
Olympus PEN E-P3 — Type Micro Four Thirds, interchangeable lens camera … Wikipedia
Olympus PEN E-PL3 — Type Micro Four Thirds, interchangeable lens camera Sensor Four Thirds System 18.00 × 13.50 mm Live MOS Maximum resolution 4032×3024 (12.3 megapixels) Lens Micro Four Thirds System mount … Wikipedia