O
- Optivity Telephony Manager 2010-02-08
- operating system 2010-02-08
- operational data store 2010-02-08
- MIT OpenCourseWare 2010-02-08
- optical computer 2010-02-08
- opt-in e-mail 2010-02-08
- operator 2010-02-08
- OS X 2010-02-08
- oscillator 2010-02-08
- oscillation 2010-02-08
- OS/400 2010-02-08
- ORBS 2010-02-08
- Object Request Broker 2010-02-08
- Orange Book 2010-02-08
- Oracle 2010-02-08
- org 2010-02-08
- ordinal 2010-02-08
- order of magnitude 2010-02-08
- orthogonal 2010-02-08
- orphan file 2010-02-08
- operational support system 2010-02-08
- optical disc 2010-02-08
- optical media 2010-02-08
- optical fiber 2010-02-08
- optical mouse 2010-02-08