How do copper wires and fiber optics (light) transmit data?

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Hi,

I am currently studying computer networks and I have been reading about how data is transmitted via copper wires and fiber optics.

I understand the very basics of computers, data, logic gates and binary code.

However, currently I am struggling to wrap my head around how data can be transmitted by copper/light? It just does not make sense to me!

Can someone shed light on this?

In: Technology

9 Answers

Anonymous 0 Comments

Think about morse code. It’s a series of long and short tones / beeps. And, people can known what someone is saying in morse code, by listening to those beeps, and assembling it into a message.

* beep, beeeeeeep = “A”
* beeeeeeep, beep, beep, beep = “B”
* etc…

Networks work in the same way. But instead of using sound, they use electricity (copper) and light (fiber optic).

And, instead of beep / beeeeeeep, they use (on / off). But, they still rely on a pattern on / off / on / off messages coming in. And, instead of morse code and English, they use a computer code and language.

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