The document discusses the basics of how the internet works, including that it is a worldwide interconnection of computer networks using TCP/IP protocols to share information. It explains that a URL identifies resources on the internet and that an IP address is a unique number assigned to devices connected to a network that uses the IP protocol. It also provides examples of using the ipconfig command in Windows to view a device's IP address and lists some common internet applications and services like websites, search engines, file sharing, and chat rooms.

1. 4.1
1. (Internet)
Cyberspace )
Internetworking )
2. URL
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IP address
Computer
Network TCP/IP
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| Transmission
Control Protocol|Internet Protocol : TCP | IP)
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IP address
start menu >> run cmd DOS
ipconfig Enter
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2. http://www.thaigoodview.com/node/5660
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http://www.travel.sanook.com
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- Search Engine

3. - “Work@home”
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- MP3
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4. - (Chat Room