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Digital video is an electronic representation of moving visual images in the form of encoded digital data. This is in contrast to analog video, which represents moving visual images in the form of analog signals. Digital video comprises a series of digital images displayed in rapid succession, usually at 24, 25, 30, or 60 frames per second ...
Video, by contrast, encodes images electronically, turning the images into analog or digital electronic signals for transmission or recording. [3] Video technology was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) television systems. Video was originally exclusively live technology ...
Digital is defined as any data represented by a series of digits, and media refers to methods of broadcasting or communicating this information. Together, digital media refers to mediums of digitized information broadcast through a screen and/or a speaker. [1]
Digital cinema is distinct from high-definition television and does not necessarily use traditional television or other traditional high-definition video standards, aspect ratios, or frame rates. In digital cinema, resolutions are represented by the horizontal pixel count, usually 2K (2048×1080 or 2.2 megapixels ) or 4K (4096×2160 or 8.8 ...
A digital video recorder (DVR), also referred to as a personal video recorder (PVR) particularly in Canadian and British English, is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device.
This category comprises articles pertaining to the technology used to produce video programming and films. For articles pertaining to the broadcast transmission of television or video signals, see the broadcast engineering category.
Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television ...
Digital radio, which uses digital technology to transmit or receive; Digital television, television systems which broadcast using digital signals; Digital signal (electronics), signals formed from a discrete set of waveforms, rather than continuous ranges; Digital signal (signal processing), sampled analog signals represented as a sequence of ...