All language subtitles for 8_Peripherals

Let's take a look at the
back of our computer again.

Here you see lots
of connectors or

ports we can plug in
different objects,

like a mouse, keyboard,
and a monitor.

These are known as peripherals.

A peripheral is basically
anything that you connect

your computer externally
that adds functionality.

You've probably used
USB devices before.

USB, also known as universal
serial bus devices,

are the most popular
connections for our gadgets.

USB has gone through lots
of changes since inception.

Your most commonly
encounter USB 2.0,

USB 3.0, and 3.1
in today's system.

In the chart let's pay
attention to the details

using Mb/s instead of

using MB to reference
transfer speed,

these are actually
different units.

MB is megabyte or
unit of data storage

while capital Mb/s is
a megabit per second,

which is a unit of
data transfer rate.

People often mistake speeds
of 40 megabit a second

to mean that you can transfer

40 megabytes of data per second.

Remember that one
byte is eight bits,

so to transfer a one
megabyte file in a second,

you need an eight megabits
per second connection speed.

You will also need
compatible USB ports

to go with your devices.

If you connect a USB 2.0
device into a USB 3.0 port,

you won't get 3.0 transfer speed

but you can still use

the port since it's
backward compatible,

meaning older hardware will
work with newer hardware.

The ports are easy to
differentiate, let me show you.

In general, USB 2.0
are black and USB

3.0 are blue and
3.1 ports are teal.

This may change depending
on manufacturers.

There are lots of types of

USB connectors and you can read

about all of them in

the supplemental reading right

after this video, check it out.

Back to USB connectors.

The most recent one is
a Type C connector,

which is meant to replace
many peripheral connections.

It's quickly becoming
a universal standard

for display and data transfer.

In addition to USB peripherals,

you should also be aware
of display peripherals.

There are some common
impulse standards to know.

Most computer monitors will

have one or more of
these connections,

but you might encounter some
older standards too, DVI.

DVI cables are generally
just output video,

if you need to hook
up a monitor or

projector for a
slide presentation,

and you want audio too,

you may be out of luck, instead,

you want to look at one of
the following cables, HDMI.

This has become a
standard in lots of

televisions and
computers nowadays,

and outputs both
video and audio.

Another standard that's become

popular among manufacturers
is a display port,

which also outputs
audio and video.

In addition to audio and video,

USB Type C can also do
data transfer and power.

As an IT support specialist,

you'll work with
peripherals like

USB devices and
display devices a lot.

Now, you'll be able
to distinguish

between the major types.