R.D. Sivakumar is an Assistant Professor of Computer Science and Head of the Department of M.Com.(CA) at Ayya Nadar Janaki Ammal College in Sivakasi, India. He provides his contact information including mobile number, email, and website. The document then summarizes that a network interface card coordinates data transfer between devices by connecting them to a communication channel. Common examples of NICs are Ethernet, Arcnet and token ring. Protocols establish rules and procedures for transferring, maintaining, and ending data communication.

1. R.D.SIVAKUMAR, M.Sc.,M.Phil.,M.Tech.,
Assistant Professor of Computer Science &
Assistant Professor and Head, Department of M.Com.(CA),
Ayya Nadar Janaki Ammal College,
Sivakasi – 626 124.
Mobile: 099440-42243
e-mail : sivamsccsit@gmail.com
website: www.rdsivakumar.blogspot.in
Coordinating Data Communication

2. Coordinating Data Communication
The device that coordinates the data transfer is called Network Interface card(NIC).
NIC is fixed in the computer and communication channel is connected to it.
Ethernet, Arcnet and token ring are the Examples for the NIC.
Protocol means rules or procedures.
Protocol gives the idea for establishing, maintaining and terminating the data transfer.