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A Network Interface Card (NIC) is a hardware device that handles an interface to a computer network and allows a network-capable device to access that network. It is a computer hardware component designed to allow computers to communicate over a computer network.
Hardware
modem
An internet card is something that allows you to surf the World Wide Web (www) A network card is a local piece of equipment that allows you to connect to other computers on the network.
direct memory access (DMA)
the very basic os --MS-DOS allows uers to directly have access to hardware
DMA Channel
Ftp
hub and router
A Storage Area Network (SAN) is a dedicated network of storage devices that are not otherwise accessible through the local network (e.g. there is no OS to interface with). This allows servers to have access to large blocks of storage that appear to be local to the server, but are in reality physically separated. This can make backups easier, or provide access to large storages of media files (such as a site like YouTube).
Intranet
I wireless desktop card is hardware you install into your computer so you can connect your computer to a wireless network from a router or access point.