What does OSI stand for?

What does OSI mean?

OSI	διασύνδεση ανοικτών συστηάτων International » Greek
OSI	A Organization For Standards Institute Miscellaneous » Unclassified
OSI	Office Of Scientific Information Miscellaneous » Unclassified
OSI	Office Of Special Investigation Academic & Science » Universities
OSI	Office of Special Investigations Governmental » US Government
OSI	Office of Special Investigations Governmental » FBI Files
OSI	Office Of Strategic Intelligence Governmental » US Government
OSI	Office Of Strategic Intelligence Governmental » Military
OSI	Office Of Supernatural Investigation Miscellaneous » Unclassified
OSI	Officine Stampaggi Industriale Business » Firms
OSI	Oil Stability Index Miscellaneous » Unclassified
OSI	Open Source Initiative Computing » General
OSI	Open Source Institute Community » Non-Profit Organizations
OSI	Open System Inter Miscellaneous » Unclassified
OSI	Open System Interface Computing » General
OSI	Open Systems Interconnection Academic & Science » Electronics
OSI	Open Systems Interconnection Governmental » Military
OSI	Open Systems Interconnection Computing » Networking
OSI	Open Systems Interconnection Computing » Telecom
OSI	Open Systems Interconnection Computing » General
OSI	Open Systems Interconnection Computing » Drivers
OSI	Operating System Intelligence Business » General
OSI	Operational Subsystem Interface Governmental » Military
OSI	Optimal System Integration Computing » Hardware
OSI	Orchestra Of Strategic Influence Academic & Science » Chemistry