2. OASIS (Organization for the Advancement of Structured Information Standards)
3. object
4. object class
5. object code
6. object database
7. object handle
8. object library
9. object module
10. object program
11. object technology
12. Objective-C
13. object-oriented analysis
14. object-oriented database
15. object-oriented design
16. object-oriented font
17. object-oriented graphics
18. object-oriented technology
19. OC (Optical Carrier)
20. Occam’s razor
21. OCR (Optical Character Recognition)
22. octal
23. octet
24. OCX (Object Embedding and Linking Control)
25. ODBC (Open Database Connectivity)
26. ODBMS (Object-oriented DBMS)
27. Odin
28. ODR (Online Dispute Resolution)
29. OEM (Original Equipment Manufacturer)
30. OFDM (Orthogonal FDM)
31. office automation
32. offline
33. off-line debit card
34. off-line debit card system
35. offset (1)
36. offset (2)
37. offset (3)
38. OFX (Open Financial Exchange)
39. Ogg Vorbis
40. OGM (OGg Media)
41. OGSS (Ordered Grid Super-Sampling)
42. OIA
43. OIC (Oh, I see)
44. OID (Object IDentifier)
45. oil card
46. OIRT (Organisation Internationale de Radiodiffusion et de Télévision)
47. OLAP (OnLine Analytical Processing)
48. OLE (Object Linking and Embedding)
49. OLE DB (OLE DataBase)
50. OLED (Organic Light Emitting Device, Organic Light Emitting Diode)
51. OLL (Online love)
52. OLTP (On-Line Transaction Processing)
53. OM1 (Open MPEG-1)
54. OMA (Object Management Architecture)
55. OMC (Operation and Maintenence Center)
56. OMG (Object Management Group)
57. Omniweb
58. ONC (Open Network Computing)
59. on-demand TV
60. one-line phone
61. one-way hash function
62. online broker
63. online processing
64. online service, on-line service
65. online storefront
66. online, on-line
67. OODB (Object-Oriented DataBase)
68. OOK (On-Off Keying)
69. OOP (Object-Oriented Programming)
70. open (1)
71. open (2)
72. Open CV (OPEN Source Computer Vision)
73. Open EDI
74. open format
75. Open Market
76. open relay
77. open source (1)
78. Open Source (2)
79. Open Source Definition
80. open standards
81. open systems
82. open video system
83. OpenAL (OPEN Audio Library)
84. OpenBSD
85. OpenDoc Standard
86. OpenGL
87. OpenLDI (OPEN LVDS Digital Interface)
88. OpenLook
89. OpenStep
90. OpenVMS
91. Opera
92. operand
93. operation (1)
94. operation (2)
95. operation code
96. operator (1)
97. operator (2)
98. OPI (Open Prepress Interface)
99. OPS (Open Profiling Standard)
100. Opteron
101. optical disk
102. optical disk library
103. optical fiber
104. option
105. optional
106. OQPSK (Offset Quadrature Phase-Shift Keying)
107. OR
108. Oracle
109. Oracle E-Business Suite
110. Orange Book
111. ORB (Object Request Broker)
112. orkut
113. orphan link
114. orthogonal
115. orthogonal code
116. orthogonal instruction set
117. OS (Operating System)
118. OS/2
119. OS/2 Warp
120. OS/390
121. OS/400
122. OS-9
123. OSD (Open Software Description)
124. OSD (On-Screen Display)
125. OSD (On-Screen-Display)
126. OSF (Open Software Foundation)
127. OSI (Open Source Initiative)
128. OSI (Open Systems Interconnection) architecture
129. OSINT (open-source intelligence)
130. OSP (Online Service Provider)
131. OSP (2) (Office Service Provider)
132. OSPF (Open Shortest Path First)
133. OT (Operator Terminal)
134. OTA (Over The Air) television
135. OTG (Operations and Technology Group)
136. OTOH (On the other hand)
137. OTP (One Time Pad)
138. OTP (One Time Programmable)
139. OTP (One-Time Password system)
140. OTP (Open Trading Protocol)
141. outbox
142. outline (1)
143. outline (2)
144. outline font
145. outline view
146. out-of band signaling
147. output device
148. overclocker
149. overclocking
150. overflow
151. overhead
152. overlaid windows
153. overlay network
154. overwrite (1)
155. overwrite (2)
156. OWA (Outlook Web Access)