Lexikon Buchstabe: O
- OASIS (Organization for the Advancement of Structured Information Standards)
- OBSAI
- OCR (Optical Character Recognition)
- ODBC (Open Database Connectivity)
- OEM (Original Equipment Manufacturer)
- OFDM
- OFDMA
- Office
- OHA
- OLE (Object Linking and Embedding)
- OLED (Organic Light Emitting Diode)
- ONF
- Online
- Open Office
- Open Source
- OpenAI
- OpenCL (Open Computing Language)
- OpenGL (Open Graphics Library)
- ORTC
- OSD (On Screen Display)
- OSI-Modell (Open Systems Interconnection)
- OTA