A keypunch or key punch is a device used for precisely punching holes in specific locations on a stiff card. It was used in conjunction with early punched card computers. The punched card served as the program instruction for the computer. The locations of the punches were determined by the keys being struck by a human operator, much like typing...
Readers should come away more informed about the various security aspects involved with implementing VoIP on their networks.
Brad Casey has a background in writing technical documents, but is branching out into the article/blogging format. He loves all things related to information technology, and has an unquenchable passion for writing. Full Bio
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