A typical digital set-top box contains one or more microprocessors for running the operating system, usually Linux or Windows CE , and for parsing the MPEG transport stream. A set-top box also includes RAM, an MPEG decoder chip, and more chips for audio decoding and processing. The contents of a set-top box depend on the DTV standard used. DVB-compliant set-top boxes contain parts to decode COFDM transmissions while ATSC-compliant set-top boxes contain parts to decode VSB transmissions. More sophisticated set-top boxes contain a hard drive for storing recorded television broadcasts, for storing downloaded software, and for other applications provided by the DTV service provider. Digital set-top boxes can be used for satellite and terrestrial DTV but are used mostly for cable television. Set-top boxes are commonly leased from a service provider.
A typical digital set-top box contains one or more microprocessors for running the operating system, usually Linux or Windows CE , and for parsing the MPEG transport stream. A set-top box also includes RAM, an MPEG decoder chip, and more chips for audio decoding and processing. The contents of a set-top box depend on the DTV standard used. DVB-compliant set-top boxes contain parts to decode COFDM transmissions while ATSC-compliant set-top boxes contain parts to decode VSB transmissions. More sophisticated set-top boxes contain a hard drive for storing recorded television broadcasts, for storing downloaded software, and for other applications provided by the DTV service provider.กล่องเซ็ตท็อปดิจิตอลสามารถใช้ดาวเทียมและบก DTV แต่ส่วนใหญ่ใช้สำหรับเคเบิลทีวี ชุดกล่องด้านบนมักเช่าจากผู้ให้บริการ
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