The document discusses how the internet works, including that it connects computers worldwide through IP addresses and DNS servers which translate names to numbers, allowing users to access websites. It also provides examples of common internet activities like using search engines to find information, downloading files like MP3s, and chatting online.

1. 4.1
– 10
1. (Internet)
2.
www
................internet..............................
...........
3.
IP addres
DNS
Server
4.
-
5.
........................................................................
...........................................................................
.....................................................................

2. ..........................................................................
.....................................................................
6.
http://guru.google.co.th/guru/thread?tid=03caa137d2fa720d
7.
......................................................................
.....................................................................
....................................................................
....................................................................

3. 4.2
-
............................................................................................
....................... .................
-
-

4. -
- Search Engine
- “Work@home”
-
-
-
-
-
-
- MP3
-
-
-
-
-
-
- (Chat Room)