All language subtitles for 2_Computer Architecture Overview

In the last video,

I mentioned that people
don't need to understand

how a computer works
for them to use it,

because abstraction makes
things simpler for us.

That's technically true,

but since you're stepping
to the world of IT,

you do need to understand

all the layers of a
computer and how they work.

It's essential that you

understand how the
different pieces

interact so you can resolve
any issues that may arise.

Computer can be cut
into four main layers,

hardware, operating system,
software, and users.

The hardware layer is made up of

the physical components
of a computer.

These are objects you can
physically hold in your hand.

Laptops, phones, monitors,

keyboards. You get the idea.

In the next lesson,

you'll learn all of
the components of

a computer and how they work.

You'll even be able to build

your own computer by
the end of this module.

The operating system allows

hardware to communicate
with the system.

Hardware is created by many
different manufacturers.

The operating system
allows them to be used

with our system regardless
of where it came from.

In the next few lessons,

you'll learn about the
major operating systems

that we use today and you'll be

able to understand all of

the underlying components that

make up an operating system.

By the end of these lessons,

you'll have a strong grasp
on the major components

of any operating system
like Android or Windows,

and use that knowledge to
navigate any operating system.

The software layer is how we

as humans interact
with our computers.

When you use a computer,

you're given a vast amount of

software that you interact with.

Whether it's a mobile app,

a web browser, a word

processor with an
operating system itself.

Later in this course,

we'll learn how software
is installed on

our systems and how

we interact with different
types of software.

The last layer may not seem
like it's part of the system,

but it's an essential layer
of the computer architecture.

The user, the user interacts
with the computer.

The user layer is

one of the most important
layers we'll learn about.

When you step into
the field of IT,

you may have your hands full
with the technical aspects.

The most important part of
IT is the human element.

While we work with
computers every day,

it is the user interaction
that makes up most of

our job from responding to

user emails to fixing
their computers.

By the end of the course,

you'll also learn how to apply

your knowledge of how
a computer works to

fix real-world issues that

can sometimes seem
random and obscure.

We'll do this by
learning how to utilize

problem-solving tactics to
identify issues and solutions.

There's a lot ahead.

The next instructor
you're going to

meet as a friend of mine,

Devin [inaudible] and I

know there's no better
person to teach you about

hardware or even show
you how to build

a computer from its component
parts. Pretty cool.