Wed. May 25th, 2022


Basically, you need to think about how data is sent and received wirelessly. Wired communication follows the same logic, but don’t mind it. Anionizing radiation, such as radio waves that are basically light outside the visible spectrum, is transmitted. When they broadcast it, it is “modulated” which means it is coded. How they code it as the frequency fluctuates. When you think of frequency, think of your car’s FM radio. Channel 107.6 is basically 107.6 MHz (MHz), which is just a measure of how fast the waves go up and down. 107.6 MHz will go up and down 107,600,000 times per second. But in the end you see those zeros? Where it is fluctuating slightly; This could be 107,601,500, slightly higher / lower, or anywhere in the vicinity unless it interferes with another channel’s frequency. These variables basically use code, such as Morse code point and dash.

A modem can basically explain the fluctuations in the wavelength and determine the code it is sending. The code is then executed to perform its functions (voice, data, etc.). That process is demodulation. Although a modem can do the opposite, it basically transmits a response in the same way.

I know I said I wouldn’t fall into the wire, but here I am whatever. Data transfer cables do the same thing but with electricity instead of radiation. A .5v is considered as 1 and 0v as 0. That’s where 1s and 0s come from computer code, one of a kind. Computers use small switches called flip flops that work in a similar way. If the flip flop carries a voltage, it is a 1.

Fiber optics do the same thing, but with light through glass-like wires rather than electricity.

Tadaaaaa.



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