The document discusses IP addresses and how they are assigned. IP addresses are unique addresses for devices connected to the Internet and are assigned by InterNIC. They allow devices to communicate with each other over the Internet by providing a unique identifier for each device. The document also mentions how search engines work and provides some examples of common online activities like searching for jobs or music and chatting online.

1. 4.1
1. (Internet) Internet)
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ip address
Internet

2. IP Address
IP Address InterNIC
(International Network Information Center)
InterNIC
Network Address
IP Address 2
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IP address
Internet
IP Address
IP Address InterNIC
(International Network Information Center)
InterNIC
Network Address

3. IP Address 2
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http://www.oknation.net/blog/nakho
rnsi/2009/10/14/entry-1
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4.2
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- Search Engine
- “Work@home”
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- MP3
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- (Chat Room)