الاسئله والاستفسارات فى ماده برمجه الشبكات

mr metoo كتب:

Internet Addresses: Every computer on the internet
is identified by a unique 4 byte IP Address.

Ports:

• Computers often need to communicate with more than one host at a time, To make this possible the computer's network interface is logically subdivided into 65.536 different ports.
  
• It doesn't represent anything physical like a serial or parallel port, the host is responsible for reading the port number from each packet it receives to decide which program should receive that chunk of data
  

Protocols: that's rules which govern the network

URL:
Short for "Uniform Resource Locator ", Is a way to identify the location of a resource on the internet

Sockets:
Is presented with a higher level abstraction, and represents a reliable connection for the transmission of data between 2 hosts.

4 Fundamental Operation a socket perform:

• Connect to a remote machine
  
• Send Data
  
• Receive Data
  
• Close the connection
  

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