A binary number system is used to represent numbers. Each digit represents a power of two (2^n). For example, the decimal equivalent of 01101001 is 4. This means that the first bit is 1, the second bit is 0, the third bit is 1, the fourth bit is 0, etc.
An optical network can be defined as a collection of interconnected nodes that are used for transmitting and receiving messages using light beams instead of electricity. The nodes may consist of computers, routers, switches, hubs, repeaters, amplifiers, etc. These devices convert the digital data into analog signals and vice versa.
Light travels faster than electrons because they move in opposite directions. Electrons move from negative to positive, whereas photons move from positive to negative.
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