THE REAL STANDARD FOR COMMUNICATIONS: THE INTERNET
	The INTERNET and TCP/IP Reference model (aka "the Internet suite"):    Is the standard de facto for the majority of networks    It has only four layers: OSI INTERNET SUITE 7. Application Application 6. Presentation 5. Session 4. Transport Transport 3. Network Internet 2. Data link Host-to-network 1. Physical    OSI Presentation and Session layers are missing    The Internet layer (OSI: Network) handles packets    The Host-To-Network layer (OSI: Datalink + Physical) handles frames and bits