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Television Technology: From Analogue to Digital and Beyond - Essay Example

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Undergraduate
Essay
Technology
Pages 4 (1004 words)

Summary

Television is in the process of being transformed from analogue to digital operations. This paper briefly analyses the features and implications of this transformation, and describes how this change will affect the system from a technological perspective.

Extract of sample
Television Technology: From Analogue to Digital and Beyond

From analog systems to cable TV and after, drawing rooms the world over today boast of Plasma TV sets, DTH (direct-to-home), Digital Satellite Systems (DSS), and HDTV (high definition television). This has been made possible through the communication technology revolution that kept pace with the digital advances in computer and Information Technology particularly in the last few decades.
When transmission on television first began between the year 1928 and 1935, the quality of picture details were so small and unclear that the system was called as "low definition". This was because a picture would be made of only about 30 lines, and hundreds of such lines would be required to give a picture with some resolution. Technology improved with the maiden "high definition" system brought out by the "BBC" in the year 1936. (Berry 2005). This was composed of 405 lines. An improved version with relatively better picture clarity (625 lines) emerged in the year 1964).
The basic television technology involved the transmission, capture, and reproduction of a picture by the receiver unit known as the television set. A picture tube or CRT (cathode ray tube) consisting of an electron beam was used for this purpose. ...
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