Devices used in each layer of OSI Model

Pic: Wikipedia

1.Physical Layer- Bits: Hubs, Repeaters, Fibers, Cables, Microwave, Radio, etc.

2.Data Link Layer- Frames: Bridges, 2-Layer Switches, Ethernet, WiFi AP's

3.Network Layer- Packets: Routers, 3-Layer Switches.

4.Transport Layer- Segments: Load Balancers/Firewalls.

5.Session Layer- Data: Load Balancers/Firewalls/Computers.

6.Presentation Layer- Data: Load Balancers/Firewalls/Computers.

7.Application Layer- Data: Load Balancers/Firewalls/Computers.