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the back of most PCS is this huge Festival of different ports and

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connectors and we just realized we've never done an episode explaining what

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they all are which is honestly kind of wild because some of these are pretty

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Nostalgia inducing at this point now let's start out with these multicolored

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connectors these are all for audio so why are there so many well a typical

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pair of PC speakers will plug in to that green port with the pink one being for a

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microphone and the blue one being a line in if you want to connect an input

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device that's not a microphone is that clear no microphones some PCS will have

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three additional ports one for a center speaker or subwoofer one for side

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speakers and one for rear speakers if you have a more traditional surround

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sound setup that doesn't use a digital connection but if you do have something

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like an external AV receiver or an external Dack that bypasses your

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computer's built-in Sound Processing you can connect those here it's called a

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toss link connector and it uses an optical signal hence why you can often

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see light shining out of it next let's talk networking this guy is an Ethernet

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port which on most modern systems supports a connection of at least 1 gbit

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per second you'll typically use this port to connect to your router and get

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on the internet and it's also usually the only port to have indicator lights

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on it what those lights mean depends on the model but it's fairly common for one

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light to indicate activity and another to indicate link speed so check your

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manual for the juicy details and these two screw connectors on some systems are

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for your Wi-Fi antennas some desktops and motherboards include these so you

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don't have to depend on having a router or an Ethernet wall jack nearby just

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screw the antenna in and you should be good to go although you may need to

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install a driver afterwards let's move on and talk about an older Port that's

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still somewhat common on Modern systems this guy is called a PS2 port and was

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what most of us used to connect keyboards and mice before USB came along

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older systems often had a purple port for keyboards and a green port for mice

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but modern systems that still feature PS2 often combine them into one port

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where you can plug in either device now there isn't too much reason to use PS2

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these days on your home PC but it can at least free up a USB port for other

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devices speaking of USB we're going to tell you all about how it's implemented

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on current systems right after we thank our sponsor delete me online privacy

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and Safeguard your family's digital world today USB has been around since

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the '90s and was developed to be a many things in one kind of port and it's

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largely succeeded at this if you're plugging in something other than a

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monitor analog audio equipment or an Ethernet cable there's a very good

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chance you're using USB you can connect things like printers webcams keyboards

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mice streaming accessories and even miniature Christmas trees over USB but

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do keep in mind that all USB ports are

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not the same a modern desktop PC might have USB ports that support various data

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transfer rates different char charging speeds or other features like updating

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your computer's firmware without booting it up these features will often be

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colorcoded for example usb3 ports that support 5 gbit per second speeds are

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often blue but again check your PCS or motherboards manual to figure out

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exactly what's what especially as there isn't always consistency between

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manufacturers and some companies even just make all their USB ports the same

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color for a signature look PCS are also increasingly coming

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with these USB type-c ports allowing you

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to use newer USBC cables and on laptops

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they're often used for charging as well some USBC ports also support the

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Thunderbolt protocol which enables specialized applications like connecting

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external graphics cards now let's wrap things up by talking about monitor

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connections modern systems typically come with one or both of these ports

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this one is simply called DisplayPort

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and this other more symmetrical one is HDM Mii you know just like you probably

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have on your TV there are some small differences between the two ports but

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for most typical use cases you can just use whichever one your monitor supports

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they also both carry audio signals allowing you to use your monitors

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built-in speakers or an external receiver if you so desire and that's

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everything you'll usually find on the back of a modern PC but if you want to

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know more about some of the ports that USB replaced not so long ago and that

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you can actually still find on some Modern systems such as VGA and DVI go

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check out this video next thanks for watching guys like the video if you

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liked it dislike it if you disliked it check out our other videos comment below

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