ES has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of ES in Technology.
Alternatively referred to as a bus slot or expansion port, an expansion slot is an opening located inside a computer on the motherboard or riser board that allows additional boards to be connected to it. For example, if you wanted to install a new video card in the computer you'd purchase a video expansion card and install that card into the compatible expansion slot.
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