Definition of Physical Layer in Computer Network

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Offline fahad

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Definition of Physical Layer in Computer Network
« on: June 05, 2020, 11:18:16 PM »

Physical layer in the OSI model plays the role of interacting with actual hardware and signaling mechanism.

Physical layer is the only layer of OSI network model which actually deals with the physical connectivity of two different stations.

This layer defines the hardware equipment, cabling, wiring, frequencies, pulses used to represent binary signals etc.


Physical layer provides its services to Data-link layer. Data-link layer hands over frames to physical layer.

Physical layer converts them to electrical pulses, which represent binary data.

The binary data is then sent over the wired or wireless media