Intro to Networks

Intro to Networks

What are we really doing online?

A network is two or more computers talking to each other.

​It's the biggest network ever. Hundreds of thousands of millions of computers, all connected together.

​

So then, what's the internet?

By understanding how the internet works, you can use it more effectively, be an informed voter, and be able to protect yourself online.

Why do you care?

• Photos?

  • Took 30 min to download

• Videos?

  • Nope

• Connection?

  • Used the only phone line in the house.

• Speed?

  • Slow

​

​The early internet:

Dial-up internet was slow because there wasn't a lot of bandwidth. You couldn't get a lot through because there physically wasn't the technology.

​

Bandwidth

​How fast can you drink through a super skinny straw? What if you had to drink a milkshake through one? What would happen?

​Think of it like a straw

Reorder

Reorder the following in order from least amount of bandwidth needed, to most.

• Text

• Links

• Images

• Video

• Online Games

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Select

What made dial-up difficult to use? (Select all that apply)

• Slow

• Fast

• Used the phone line

• Cheap

​A computer (or computers) that run a program to manage access to all the information on a network. The internet is stored on hundreds of server farms all over the world. These store huge computers that carry all of the code that makes up the internet.

​

Server

The exact location on a server of a website. When you go to joinmyquiz.com, you're going to a URL.

Uniform Resource Locator (URL)

Hotspot

Click on where you type in the URL.

​Way back when, if you wanted to game as a group, you'd hold a LAN party. You made a local network, and connected your computers together. But how did the LAN know which computer was which?

​

The LAN party

A unique number that is assigned to a computer, so a network knows it's different from another computer.

​

The IP address

Drag and Drop

When Ms. Lewis was in college, if she wanted to play video games as a group, she had to have a ​

Placeholder

party.

Drag these tiles and drop them in the correct blank above

LAN

URL

server

bandwidth

dial-up

network

Drag and Drop

If someone was having connection difficulty at the LAN party, you'd need to know their ​

Placeholder

Drag these tiles and drop them in the correct blank above

IP address

MAC address

Router password

URL

LAN address

server

cable connection

So what does that make Google Chrome?

This is what you use to access the internet. Browsers access the internet, compile and read web code, and communicate with servers.

​

Internet Browser

A search engine looks through the whole internet based on keywords you enter into it.

​

​Chrome is NOT a search engine!

Drag and Drop

Tommy wants to look up information on airplanes. He would search this up using ​

Placeholder

Drag these tiles and drop them in the correct blank above

Google

Chrome

Firefox

Instagram

TikTok

Facebook

Gawyn

Categorize

Options (20)

channing.instructure.com

joinmyquiz.com

github.com

amazon.com

100.64.0.0

203.0.113.0

192.168.255.255

mslewishasacoolsite.com

198.51.100.0

192.0.2.0

Chrome

Firefox

Safari

Edge

Opera

Yahoo

Duck Duck Go

Google

AOL

Brave

Organize these options into the right categories

URLs

IP addresses

Browsers

Search engines

Word Cloud

What is a vocabulary term you learned today?