O
O/S address
OAL - OEM Adaption Layer
OASIS - Organization for the Advancement of Structured Informations Standards
OBTW - Oh By The Way
OCR - Optical Character Recognition
ODA - Open Documents Architecture
ODBC - Open DataBase Connectivity
ODI - Open Data-link Interface
ODP - Open Directory Project
OEM - Original Equipment Manufacturer
OFDM - Orthogonal Frequency Division Multiplexing
Off-line
Office
Office automation
Ogg Vorbis
OH - Off Hook
OHCI - Open Host Compliant Interface
OIC - Oh I See
OIS - Optical Image Stabilizer
OLAP - On-Line Analytical Processing
OLE - Object Linking and Embedding
OLE-DB - OLE-DataBase
OLED - Organic Light Emitting Diodes
OLPC - One Laptop Per Child
OLR - Off-Line Reader
OLTP - On-Line Transaction Processing
OMA - Open Mobile Alliance
OMG - Open Management Group
OMTP - Over-Molded Thin Package
On Center
On Site
On the fly
On-line
Online
Online Gaming
OnNow
OOP - Object-Oriented Programming
OPC - Optimum Power Calibration
OPC - OpenGL Performance Characterization
Open HCI - Open Host Controller Interface
Open Office XML
Open Type
Open VMS
OpenDocument - Open Document Format for Office Applications
OpenDVD
OpenGL - Open Graphics Language
OpenLDI
OPGA - Organic Pin Grid Array
OPI - Open Prepress Interface
Opt
Opteron
Optical fiber
Optimization
Orange Book
ORB - Object Request Broker
OS - Operative System
OS/2
OS/2 Warp
Osborne
OSD - On Screen Display
OSF - Open Software Foundation
OSGI - Open Services Gateway Iniziative
OSI - Open System Interconnect
OSI address
OSPF - Open Shortest Path First
OSR2 - OEM Service Release 2
OTA - Over The Air
OTOH - On The Other Hand
OTP - Opposite Track Path
Ottimizzazione
Outbound Link
Output
Outsourcing
Overburning
Overclock
Overdrive
Overflow