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1
What Is the Internet? Beginner
The giant network that connects computers all around the world.
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2
What Is a Computer Network? Beginner
When computers connect so they can talk and share things.
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3
LAN vs. WAN Beginner
Local networks vs. the wide networks that connect places across the world.
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4
What Is an ISP? Beginner
The company that connects your devices to the internet.
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5
What Is a Modem? Beginner
The translator that connects your home network to your internet provider.
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6
What Is a Router? Beginner
The little device that keeps your internet moving.
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7
What Is a Switch? Beginner
The helper that lets wired devices talk on the same network.
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8
What Is Wi-Fi? Beginner
Connecting your devices to the internet without wires.
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9
What Is Ethernet? Beginner
The cable connection that helps devices talk fast and reliably.
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10
What Is a Packet? Beginner
The tiny travel-sized boxes of data that make the internet work.
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11
What Is an IP Address? Intermediate
The number that finds a computer on the internet.
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12
What Is DNS? Beginner
The internet's address book: it finds a site by its name.
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13
What Is a URL? Beginner
The address that points to a page on the web.
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14
What Is HTTP? Beginner
The language browsers and servers use to talk.
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15
What Is HTTPS? Beginner
The secure version of HTTP that keeps your connection private.
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