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Showing posts with label I O buffer. Show all posts
Showing posts with label I O buffer. Show all posts
Monday, 28 July 2014

COBOL Disk I/O: How z/OS Reads and Writes Data

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READ CUSTOMER-FILE asks COBOL for one logical record. It does not tell a disk arm to find one sector. On z/OS, the COBOL run time and ...
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