Definition of "OCS"
OCS
proper noun
(linguistics) Initialism of Old Church Slavonic.
(software) Initialism of Open Computer and Software (an application which inventories IT assets)
(communication, Microsoft, software) Initialism of Microsoft Office Communications Server (a software product)
(Internet) Initialism of Open Collaboration Services (an open and vendor-independent API to access online services)
noun
(geology) Initialism of Outer Continental Shelf.
(military) Initialism of Officer Candidate School.