How to know your ping

How to know your ping

First Click Start button and press ( R button ) while keeping pressing on start button

so this window will appear 

second : Write  ping www.yahoo.com -t 

so this window will appear and so you can watch your ping 

 

and you should know the lower your ping the better your net speed is

and this is the video

http://www.youtube.com/watch?v=wYkqVNnWvCE