- operating system
The main computer program that manages and integrates all the applications running on a computer. The OS handles all disk interactions with the processor.
- OSI (Open Systems Interconnect) reference model
A seven-layer model created by the ISO to standardize and explain the interactions of networking protocols.
- OSPF (Open Shortest Path First)
A link-state routing protocol used on TCP/IP networks. Compare with distance-vector routing.
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