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What is 4 - Physical Layer about?

The document provides an overview of computer networks, focusing on the physical layer, data types, and signal characteristics. It distinguishes between analog and digital data, discusses periodic and non-periodic signals, and explains key concepts such as bandwidth, transmission impairments, and channel capacity. Additionally, it covers the Nyquist and Shannon theorems for calculating data rates in noiseless and noisy channels, respectively.

Author

sarthak8115mehta

Language

EN