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amplitude modulation

Overview page. Subjects: Computing — Media Studies.

The process whereby a digital signal is sent over a transmission line by changing the amplitude of a sine wave known as a carrier.

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asynchronous communication

Overview page. Subjects: Computing — Media Studies.

The transmission of data over a communication medium where the time at which a character of the data is sent is not determined by the timing of the sending or receiving of a previous...

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avatar

Overview page. Subjects: Computing — Media Studies.

1 The icon representing the user of a virtual reality system. It is normally displayed in the window of a user's computer.

2 The representation of a user...

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broadcast quality

Overview page. Subjects: Media Studies — Computing.

A standard set of criteria by which television engineers judge whether a programme is technically fit or unfit to be broadcast. These include, on tape-based formats, the picture and audio...

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channel hopping

Overview page. Subjects: Media Studies — Computing.

The process of moving from one Internet Relay Chat channel to another very quickly. Often carried out by participants looking for sexual contacts.

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colour depth

Overview page. Subjects: Computing — Media Studies.

The number of colours that can be displayed in a pixel. The deeper the colour the larger the number of colours that can be used in a graphic but the slower it becomes to download it to,...

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communication theory

Overview page. Subjects: Media Studies — Computing.

The study of communication systems through mathematical models of their operation. It is broadly divided into information theory (the entropy formulation of sources and channels) and coding...

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content provider

Overview page. Subjects: Computing — Media Studies.

Either a Web site or a company which owns a site that provides up-to-date information about a particular topic or set of topics. Content provider sites contain a wide range of information...

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cropping

Overview page. Subjects: Media Studies — Computing.

1 The process of cutting off the edges of a picture, so as to select a part of the picture.

2 The process of adding marks (crop marks) to a page to...

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dropout

Overview page. Subjects: Media Studies — Computing.

In magnetic recording technology (disk and tape), the loss of one or a sequence of bits due to a fault condition, most frequently a flaw in the recording medium. Magnetic tape and disk...

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