no port 80 on window7 with netstat -a -n -o

Dear Experts,

I restart my Window 7 computer , and type command netstat -a -n -o
to display all network port but I could NOT find any port about 80 (http port)
Why ?  and I go to  try  my other XP computer, it shows the 0.0.0 0:80 on
Local Address from netstat -a -n -o command output.

When I open chrome browser on my window 7 computer, and
go to check netstat -a -n -o  command, and find the following output
Yes, of course since issue on question-1, I could NOT find any port of 80
But I think about how can I go to default page on my chrome
browser without port 80 listen? And I check the following output, I found
something like  
  TCP     ESTABLISHED     448

The is my ISP address after check ipconfig command  and is 's https site.

Why the port for http on my local address is 49708 instead of 80 ?

Or some hidden software installed on my computer to switch port 80 to 49708
such as http proxy ? But I never use any http proxy on my  this window 7 computer .

Please advise

TCP                LISTENING       900
  TCP                LISTENING       4
  TCP                LISTENING       1032
  TCP               LISTENING       4
  TCP              LISTENING       4
  TCP              LISTENING       580
  TCP              LISTENING       964
  TCP              LISTENING       500
  TCP              LISTENING       628
  TCP              LISTENING       652
  TCP        TIME_WAIT       0
  TCP        ESTABLISHED     4
  TCP              LISTENING       1620
  TCP              LISTENING       1928
  TCP              LISTENING       984
  TCP         ESTABLISHED     1032
  TCP              LISTENING       4
  TCP    TIME_WAIT       0
  TCP     ESTABLISHED     448
  TCP     ESTABLISHED     448
  TCP      ESTABLISHED     448
  TCP    [::]:135               [::]:0                 LISTENING       900
  TCP    [::]:445               [::]:0                 LISTENING       4
  TCP    [::]:554               [::]:0                 LISTENING       1032
  TCP    [::]:2869              [::]:0                 LISTENING       4
  TCP    [::]:10243             [::]:0                 LISTENING       4
  TCP    [::]:49152             [::]:0                 LISTENING       580
  TCP    [::]:49153             [::]:0                 LISTENING       964
  TCP    [::]:49154             [::]:0                 LISTENING       500
  TCP    [::]:49155             [::]:0                 LISTENING       628
  TCP    [::]:49156             [::]:0                 LISTENING       652
  TCP    [::1]:49158            [::]:0                 LISTENING       1928
  UDP            *:*                                    500
  UDP           *:*                                    500
  UDP           *:*                                    1032
  UDP           *:*                                    1032
  UDP           *:*                                    1228
  UDP          *:*                                    1620
  UDP         *:*                                    4652
  UDP        *:*                                    3644
  UDP        *:*                                    4652
  UDP      *:*                                    4
  UDP      *:*                                    4
  UDP     *:*                                    4652
  UDP     *:*                                    1620
  UDP    *:*                                    4652
  UDP      *:*                                    4652
  UDP     *:*                                    4652
  UDP    [::]:500               *:*                                    500
  UDP    [::]:4500              *:*                                    500
  UDP    [::]:5004              *:*                                    1032
  UDP    [::]:5005              *:*                                    1032
  UDP    [::]:5355              *:*                                    1228
  UDP    [::]:62512             *:*                                    1620
  UDP    [::1]:1900             *:*                                    4652
  UDP    [::1]:59559            *:*                                    4652
  UDP    [fe80::94a8:db5:2904:ca06%12]:1900  *:*                                    4652
  UDP    [fe80::94a8:db5:2904:ca06%12]:5353  *:*                                    1620
  UDP    [fe80::94a8:db5:2904:ca06%12]:59558  *:*                                    4652

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When we are opening your computer opens a TCP session on its local dynamic port with the web servers port 80 ()for http) and 443(for https).

The only time you might see port 80 open on your local computer is when your computer is providing some sort of http services.
duncanb7Author Commented:
In other words, google chrome browser will open TCP session to use dynamic port instead of 80. So the http TCP/IP is not just working on http port 80 only but also other port
such as 49000 to 66500.  Right ?  Why he is doing that way for dynamic port, for security ?
Yes, your computers dynamic port will establish a TCP session with the web-servers well known port (0-1023).

Port 80 is registered for http service and 443 for https. The device that providing these services will open these ports. and the host computers accessing the services will have their dynamic ports open.

Here is the list of ports - Link
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duncanb7Author Commented:
So you mean google chrome browser don't use  port 80, Right ?

And why chrome browser USE dynamic   ports instead of static port ?
Google chrome browser uses your local dynamic port to establish a TCP session with

TCP session is established between your local port and the remote server port. Here the local port will be Dynamic Ports (49152-65535) and the remote server port is 80 for http webpages and 443 for https.

The remote server ports are actually well known port (0 - 1023), it the service that you are accessing will determine which remote port the session needs to be established.

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duncanb7Author Commented:
Now better understand after your comment and I can verfiy it from that
I go to check the client and server communication port on $_SERVER  variable from
php code between my linux server and my window 7 computer

The php code  report $_SERVER['REMOTE_PORT'] and  $_SERVER['REMOTE_ADDR'] that is
matched to netstat command output on my window 7 computer.

In other words, when I try on chrome browser , it will
go to my server port 80 since http or no http typing will be interpreted as access server TCP/IP port 80 on browser and https for 443.

The connection is between server 80 port and my computer dynamic port when
typing http on browser.

Why it use dynamic TCP port for browser that is I believe  because it can use it for multi-thread tasking process so that  we can create many instances or  type browsers http accesses at the same time  wihtout waiting

duncanb7Author Commented:
Totally agree your comment. Thanks for your reply,

For my memo only:
-the issue in this thread is NOT related to Window 7 & or XP system
-Why my linux server can handle many  http accesses  with just only TCP/IP http port 80,
that is because apache linux server is multi-process that
mentioned on this link ,

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