A network adapter, also called a network card, allows computers to communicate within a local network. It is both an OSI layer 1 (physical layer) and a data link layer 2 device, which allows physical access to a networking medium. It allows computers to connect together through a cabling system or a wireless connection. It uses MAC addresses to provide a low-level addressing system.
A traditional PCI adapter is a printed circuit board that plugs into the PCI expansion rack. It commonly used with desktop computers.
PCMCIA network adapter
A PCMCIA card adapter or PC card is inserted into a slot outside the computer. It is designed for laptops, tablet PCs, and other portable computers.
USB network adapter
A USB network adapter plugs into the computer’s USB port. It is compatible with desktops and laptops and is easily transferred between computers.
Media network adapter
A media network adapter plugs into the Ethernet port. It connects home entertainment devices, game consoles, and other media devices.It provides a bridge to Wi-Fi capability.
Home network kit: To save on money and ensure compatibility, choose a home network kit (a network adapter bundled together with a computer router) when buying networking equipment instead of a separate device.
Standard: Choose a network adapter that supports the same standard as your Ethernet or wireless network.
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