Meaning of peripheral

pe•riph•er•al

Pronunciation: (pu-rif'ur-ul), [key]
— adj.
  1. pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
  2. concerned with relatively minor, irrelevant, or superficial aspects of the subject in question.
  3. near the surface or outside of; external.
  4. of or pertaining to a peripheral.
—n.
  1. a device or unit that operates separately from the CPU but is connected to it, as a magnetic disk or tape unit or a printer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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