Digital video recorder & Tuner (radio) - Unionpedia, the concept map

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Difference between Digital video recorder and Tuner (radio)

Digital video recorder vs. Tuner (radio)

A digital video recorder (DVR), also referred to as a personal video recorder (PVR) particularly in Canada 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. A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output.

Analog television

Analog television is the original television technology that uses analog signals to transmit video and audio.

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ATSC standards

Advanced Television Systems Committee (ATSC) standards are an International set of standards for broadcast and digital television transmission over terrestrial, cable and satellite networks.

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Carrier wave

In telecommunications, a carrier wave, carrier signal, or just carrier, is a periodic waveform (usually sinusoidal) that carries no information that has one or more of its properties modified (the called modulation) by an information-bearing signal (called the message signal or modulation signal) for the purpose of conveying information.

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Composite video

Composite video is an baseband analog video format that typically carries a 415, 525 or 625 line interlaced black and white or color signal, on a single channel, unlike the higher-quality S-Video (two channels) and the even higher-quality component video (three or more channels).

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Digital television

Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals.

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Display device

A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people).

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NTSC

NTSC (from National Television Standards Committee) is the first American standard for analog television, published in 1941.

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PAL

Phase Alternating Line (PAL) is a colour encoding system for analog television.

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Personal computer

A personal computer, often referred to as a PC, is a computer designed for individual use.

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SECAM

SECAM, also written SÉCAM (Séquentiel de couleur à mémoire, French for color sequential with memory), is an analog color television system that was used in France, Russia and some other countries or territories of Europe and Africa.

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Set-top box

A set-top box (STB), also known as a cable box, receiver, or simply box, and historically television decoder or a converter, is an information appliance device that generally contains a TV tuner input and displays output to a television set, turning the source signal into content in a form that can then be displayed on the television screen or other display device.

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Smartphone

A smartphone, often simply called a phone, is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities.

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Tablet computer

A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package.

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Television

Television (TV) is a telecommunication medium for transmitting moving images and sound.

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Television set

A television set or television receiver (more commonly called TV, TV set, television, telly, or tele) is an electronic device for the purpose of viewing and hearing television broadcasts, or as a computer monitor.

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TV gateway

A TV gateway (also called network TV tuner) is a television headend to a network UPnP router that receives live digital video broadcast (DVB) MPEG transport streams (channels) from terrestrial aerials, satellite dishes, or cable feeds and converts them into IP streams for distribution over an IP network.

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TV tuner card

A TV tuner card is a kind of television tuner that allows television signals to be received by a computer.

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Video

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.

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Videocassette recorder

A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or other AV sources and can play back the recording after rewinding.

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