1) Physical layer is the first layer. 2) The simplest ones operate at the physical layer are: Repeaters, conventional hubs and transceivers. 3)These devices have absolutely no knowledge of the contents of a message. They just take input bits and send them as output. Cheers, AceInfo Solutions.
Interfaces used on the system to connect to Network devices reside on Physical layer.
The OSI layer that moves bits between devices is the Physical layer, which is the first layer of the OSI model. It is responsible for the transmission and reception of raw binary data over a physical medium, such as cables or wireless signals. This layer defines the electrical, mechanical, and procedural aspects required for the physical connection between devices.
Hubs and repeaters operate at the Physical Layer of the OSI Model. The Physical Layer is the first layer of the OSI Model.
Layer 1 - the physical layer
Well, some physical devices don't work at all.
physical layer Layer 1
hub work at physical layer of osi model
What_are_the_devices_used_in_osi_transport_layerNetwork Devices Used in Transport Layer: The Brouter (Bridge router), Gateway and Cable tester work on the transport layer.for more about devices used in 7 layers of OSI model go: http://www.networktutorials.info/osi_layers.html
All network devices have some component that operates at layer 1. Only hubs and repeaters operate entirely at layer 1.
TheHub work on layer 1 i.e. Physical layer of OSI Model
Physical layer devices would be a hub or a repeater to connect multiple Ethernet segments together.
Physical layer = Hub, NIC, Repeater. Data Link Layer = Switch, Bridge. Network Layer = Router.