All language subtitles for 2. External Connections

So here I am with this system unit now, system units are fantastic, but they're kind of useless by

themselves because I need to plug things like monitors and keyboards and mice and maybe a printer,

maybe plug it into a network.

I need to plug stuff in.

I need to connect peripherals to this system unit in order to take advantage of the power of this modern

computer.

So what I want to do in this episode, I'm going to call this external connections.

And basically we're going to take a tour of the outside of this computer and talk about the different

types of connections that you're going to be running into.

Now, before we go any further, I want to be real careful with some terminology here.

The terms, connection, connections, Jack Port, all of these different phrases.

They might have definitions that if you really wanted to nail it down, you'd be technically correct,

but have no friends.

I personally interchange them.

So whether I say Jack or port or connector or connections, I'm talking about the things in the back

and the cables that we plug into them so that we can make stuff go.

Got it.

Let's go ahead and get started.

So marching from left to right, first off on the far left here is actually kind of an interesting little

connection right there.

This guy is unique to this system.

And what it's used for isn't actually to plug in a mouse or a keyboard.

It's actually used for a way for me to reset some of the internal stuff on the inside of this computer.

Check out my bias section.

You're going to see that connector again.

If we take a look now we see all these rectangular connectors and some will have green outlines and

some of them have blue outlines.

All of those are probably the most famous peripheral connection we have today.

USB USB has been around now for 20 years and it's pretty much taken over the universe.

Odds are good if you're going to be plugging in a mouse or a keyboard or a printer or something like

that, it will probably use USB, although some other types of connections are available.

Now, moving along, we see these two large rectangular connections here, those rectangular connections.

Some people call them Internet connections.

That's not actually accurate.

Those are network cable connections.

We use these using a type of connector called Arjay.

Forty five snep those into our systems so that we're on a wired network.

All of these connectors you see here, these five round connectors in this one little square one, those

are all sound connectors.

So if I want to plug in a nice speaker system, I can use those round connectors.

The square connector is actually a fiber optic connection for more advanced audio systems where I can

plug that in and I can have just one cable instead of five or six coming out of the back of the computer.

Those connectors are important, but probably the one that is most interesting to people today is video

connections.

We are living in a world where video is changing all the time.

Monitors are being more colors.

They're having higher resolution.

And it's very common to see lots of different types of video connections.

And this system unit is no exception to that.

I want to start with this connection right here.

So this is a connection called Devi Devi is an older type of connection.

It works great.

As you can see, I've got a very late generation video card, but it still has a Devi connection.

What you're looking at here are two of the most popular types of video connections out there right now.

Now, you've got to look really closely.

So these are the top one.

In the third one are what we call display port.

Notice how it has a notch on one side or a channel for his actual proper term.

So display, it's very popular, but these other two are HDMI, HDMI connectors.

For anybody who's ever used a big TV or anything is a very, very common type of connector we use for

all kinds of video purposes.

See this connector right here?

That is a power connection, my friends.

In order for a computer to run, it needs electricity and we plug a cable into this connector right

here and that goes into a wall outlet and it makes electricity so that the computer can go.

So that covers all of the best connections.

But any computer day is also going to have connections on the front and on the outside.

So what I'm going to do, I'm assuming we could get rid of this device.

OK, so what we're going to do now is take a look.

On the actual outside front of this particular device and talk about some of the connections we see

there.

So what we're looking at here, these are connections that are just on and off buttons and a reset switch.

But these are the ones I'm most interested in.

USB is so common today that it's really popular for a lot of people, like, for example, my headset.

I don't want to plug that into the back of my system unit.

It's just easier for me to plug it in front or if I've got a thumb drive, I don't want to reach around

the back.

I've done it a million times just to plug in a thumb drive.

It's convenient for me to have these front panel connections that allow me to plug in USB devices and

in this case, the old school.

This is a microphone and a speakers.

So if we want to plug that in, we can do that here as well.

Now, this is a great system, but.

Compter wants you to be aware of some of the older types of connectors, so to be ready for that.

I've got something else to show you.

So this is an older system I have here, it's about 10, maybe 12 years old, and it's got a lot of

older external connections that aren't quite as common today, but they're certainly on the exam.

So let's take a peek at those two.

Let me get my test display device one more time.

Now, keep in mind, these are much older types of connections, we're going to go from left to right

again like we did before, but if you don't run into these in the real world, don't panic.

It's just older types of connections.

All right.

So starting way over here on the left, we can actually see here's a power connection on this particular

guy.

Now, these two are kind of important.

You see these these round connections, the type of connection is called a mini dinn, but they're also

called to connections.

So the bottom one was for a keyboard in the top.

One was for a mouse.

These types of connectors disappeared for a long time because USB became so popular, however, they're

having a renaissance and now all of a sudden we're seeing these round connectors again, primarily for

gamers who feel that these two connectors make much faster responses for keyboards and mice.

So pro gamers are really into these two connectors today.

This purple connector right here is what we call a parallel port.

Some people call it an LPT port.

This is one of the oldest connectors known on PCs.

It didn't disappear that long ago, used almost exclusively for printers.

This connect right here is certainly inarguably the oldest connector there is in all of computer dome.

This is a connector right here is a.

This is a video connector.

This is a very old style video connector.

And it was used to push monitors.

Here are some fairly first generation USB connectors.

Here's another one of those Arjay forty fives.

And here we have sound connectors in this particular case, there's only three connectors because it

doesn't it's not designed to support quite as many devices as the previous one did.

And now as we look over here, this is actually kind of interesting.

Here's a DVI which we saw on the previous system.

Devi is old, but it's still very, very popular.

Here's a VGA connector.

And yes, I could easily plug two monitors onto this system.

And then this is a very, very old what we call an analog style connector, and we call that guy and

s video connector.

So make sure you're familiar with how a lot of these connectors look.

The actual exam will test you showing you pictures going here's a picture of a USB connector, what

is it?

And you have to be able to name that.

So connections don't end with desktops.

Just about almost any type of computing device will have some form of external connection.

So let's do this one more time, except this time, let's take a look at my laptop.

Now, laptops are going to vary tremendously in terms of where the connections are.

It's going to be on either side.

It could be on the front sometimes even in the back, sometimes even on the bottom, depending on the

laptop itself.

But on this guy, which is a fairly late generation, my laptop, it's fairly typical what we're going

to see.

So way over here.

This is at Antitheft Connecter.

You actually designed to put a cable in there to keep people bolted to your desk so people can't steal

your laptop.

Here is another Arjay.

Forty five for a laptop.

Here's a USB connected.

This is HDMI.

And that's actually display port, it's a different shape of display port, but they call that a mini

display port, another USB.

This is a more advanced USB connection called USB C.

Technically, this is called USB A, we've got an entire USB episode for you to watch and here's a microphone

and speaker connection.

So I don't think there's anything on the front of this guy.

So as we take a look on this side, first of all, we have another USB connection.

This is a used the like this like crazy.

That's for an SD card.

If any time I need to pull something out of my camera and slide it right in here.

And then last way over here is a power connection.

And here's something.

It's becoming rare and rare.

That's actually optical media because I use a lot of optical media.

All right, so we went through a number of different type of connectors in this episode, what's important

for you to take away from this is you're beginning to get an idea of some of the names of the types

of connectors that you're going to expect, some basic functionality of those connectors.

So if I show you an HDMI connector, don't assume you're going to plug a mouse into it.

Got the idea.

Make sure you're comfortable with those and the basic shapes and you'll be fine on the exam.