However if higher video performance is desired such as 3d gaming or computer aided drawing applications, installing a standalone video adapter, also called a video card or graphics card, in a motherboard expansion slot is recommended. Audio adapters, also called sound cards, are losing prominence. Most of the current motherboards have integrated audio, which is more than what is required for normal usage. For example, the motherboards provided using Nvidia and Intel chipsets have very good audio support, and some even have 6 channel output.
However, professional gamers, those who work with audio and those whose integrated sound card is inefficient or absent would have to purchase a separate sound card.
Network cards allow two computers to communicate over a network. Most of the modern motherboards have an inbuilt network card. However if the computer needs to be a part of more than a single network, or if the motherboard does not include an inbuilt card, then one has to purchase additional network interface cards. These allow transfers of about 10 to 100MB data transfer per second, depending on their type. These allow computers to communicate, in the absence of any wires. When wires are an encumbrance these can be used. They are especially used with laptop computers. . The Various Components of the Assembling of a Computer.
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