OC-N - Optical Carrier level N

OC3 - Optical Carrier 3

OCE - Open Collaborative Environment

OCF - Objects Components Framework

OCF - Operator Control Language

OCH - One Copy Heuristic

OCIS - Organization Communication and Information Systems

OCL - Other Current Liabilities

OCLC - Online Computer Library Center

OCM - Object Communication Model

OCM - Object Control Matrix

OCR - Optical Character Recognition

OCR - Object Class Requirement

OCS - On -Card Sequencer

OCSA - Oracle Client Server Area

OCSM - Oracle Client Software Manager

OCT - Optimal Context Three

OCX - Object Linking and Embedding Control

OD - Optical Disk

OD - Origin - Destination

ODA - Office Document Architecture

ODA - Open Document Architecture

ODAPI - Open Database API

ODB - Optimal Barain Damage

ODBC - Open Database Concept