random access

the capacity of a videodisc or compact disc player that allows the user to select and replay any portion without starting at the beginning.
availability, as of a service or facility, whenever needed or desired: an executive's need for random access to legal experts.


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adjective Computers.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
random access
another name for direct access

Collins English Dictionary - Complete & Unabridged 10th Edition
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Dictionary.com's 21st Century Lexicon
Main Entry:  random access
Part of Speech:  n
Definition:  See direct access
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
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Example sentences
Tape drives do not afford efficient, random access to the data.
In short, magnetic core memory was the first random access memory that was
  practical, reliable and relatively high-speed.
It's the visual voice mail, co-developed with their mobile-phone partner, that
  allows random access to voice mail.
Random access reads and writes from system to system.
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