noun: (linguistics) Initialism of Old Church Slavonic. [The first literary and liturgical Slavic language.]
noun: (software) Initialism of Open Computer and Software (an application which inventories IT assets)
noun: (Amiga, hardware) Initialism of Original Chipset (a Commodore Amiga chipset)
noun: (communication, Microsoft, software) Initialism of Microsoft Office Communications Server (a software product)
noun: (Internet) Initialism of Open Collaboration Services (an open and vendor-independent API to access online services)
noun: Initialism of Office of Contract Settlement.
noun: (chemistry) Initialism of carbonyl sulfide (a chemical compound with the formula OCS) [(inorganic chemistry) The mixed oxide and sulfide of carbon COS.]
noun: (geology) Initialism of Outer Continental Shelf.
noun: (Internet) Initialism of Online Charging System (a system allowing providers of communication services to charge customers based on service usage)
noun: (Internet) Initialism of Origin Content Server (another name for a Web server)
noun: (military) Initialism of Officer Candidate School.
