Ø QAM:Quadrature Amplitude Modulation. A method of modulating digital signals using both amplitude and phase coding. Used for downstream and can be used for upstream.
Ø QPSK:Quadrature Phase-Shift Keying. A method of modulating digital signals using four phase states to code two digital bits per phase shift.
Ø Quartz:A powerful graphics system that delivers a rich imaging model, on-the-fly rendering, anti-aliasing, and compositing of PostScript graphics. Quartz also implements the windowing system for Mac OS X and provides low-level services such as event handling and cursor management. It also offers facilities for rendering and printing that use PDF as an internal model for graphics representation.
Ø Query:This is to make a computer request of a database.
Ø QuickTime Player:A multimedia technology developed by Apple Computer. Developed to display video, sound, animation, graphics, text, music and 360 degree virtual reality (VR) scenes. Apple makes its QuickTime plug-in available for free and once installed on your computer system, you can watch streaming media within a web page.
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