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What is Understanding Data Signals in Networks about?
The document discusses the physical layer of communication, focusing on how data is exchanged as signals between devices like Alice and Bob. It explains the necessity of signals, which can be electrical, optical, or electromagnetic, and categorizes them into analog and digital types, detailing their characteristics, advantages, and disadvantages. Analog signals are continuous and sensitive to noise, while digital signals are discrete, less affected by noise, but require more bandwidth for high-quality data.
- Author
- Putta Swamy
- Language
- EN