How computer communicate with each other

Have you ever wonder, how PC communicate with each other on the network? Basically, this is how a pc build a packet to be send out on the net (eg :ftp to PC1)
1) Port resolution (‘ftp’ = port 20 or 21)
2) Name resolution ("PC1" = 192.168.1.100)
3) Route resolution (where is PC 1 - Local@remote)
4) MAC address resolution (Ethernet address for "PC1" is 0x00-00-1B-22-3E-11)























Cool..Didn't get yet? Don't worry, there are many people out there who are willing to help you to better understand about TCP/IP network. Anyway i will start to give an explanation on the basic network.