Principle of Communication Network Devices

This document covers the principle of communication network devices, including IP address, router, and subnet mask. It also explains the differences between EEPROM and RAM memory types. The concept of magnetic flux density is described with a diagram. The document discusses simplex, half-duplex, and full-duplex channels, as well as switched and dedicated circuits. It also covers topics like thermal imaging cameras, number systems, ADC, and more.