GroupCweek11
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The document discusses several key concepts related to circuit-switched digital networks: digital signal processing represents signals as sequences of numbers that can be processed; Integrated Services Digital Network is a set of standards for digital transmission of voice, video, and data over telephone networks; the Internet Protocol Suite defines the protocols used for communication on the Internet; and a modem modulates and demodulates analog carrier signals to encode and decode digital data for transmission.
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GroupCweek11
- 1. How Circuit-Switched Digital Networks Work ・Digital signal processing(DSP) ・Integrated Services Digital Network (ISDN) ・Internet Protocol Suite ・Modem
- 2. Digital signal processing(DSP) Digital signal processing (DSP) is concerned with the representation of signals by a sequence of numbers or symbols and the processing of these signals.
- 3. Integrated Services Digital Network (ISDN) Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.
- 4. Internet Protocol Suite The Internet Protocol Suite is the set of communications protocols used for the Internet and other similar networks.
- 5. Modem A modem (modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.