Physical I/O

From BCMpedia. A Wiki Glossary for Business Continuity Management (BCM) and Disaster Recovery (DR).
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1. Coming soon.

(Source: Business Continuity Management Institute - BCM Institute)

2. A read or write request from a program has necessitated a physical read or write operation on an IO device. (Source: OGC, Information Technology Infrastructure Library (ITIL) v3)