• OSI: Open Systems Interconnection

• Layer 7 - Application

• Layer 6 - Presentation
• Layer 5 - Session
• Layer 4 - Transport
• Layer 3 - Network
• Layer 2 - Data Link
• Layer 1 - Physical

All People Seem To Need Data Processing.

References

• https://www.freecodecamp.org/news/osi-model-networking-layers-explained-in-plain-english/
• Wikipedia - OSI model