Data transmission : How does data flow in hubs, switches and routers?

The video tutorial explains the concept of network interface cards (NICs), also known as network interface controllers, network adapters, or LAN adapters. It describes how these hardware components connect computers or devices like iPads to computer networks. The tutorial highlights the difference between connecting to a physical network using cables and the increasing use of wireless network interfaces that connect devices to networks without the need for physical cabling.

What is the significance of a network interface card in a computer?

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How are devices connected to a wireless network?

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