System Analysis and Design
The systems have been classified in different ways

physical or abstract
None of these
open or closed
man-made information system
All of these

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System Analysis and Design
The term Parallel Run refers to

All of these
the processing of two different jobs initiated from two terminals.
the same job run on two different computer to test their speeds
the concurrent operation of an existing system and a new system
None of these

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System Analysis and Design
Direct-access organization

Stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key.
has records placed randomly throughout the file
uses an index for each key type

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