| | ݃Aô‹ | îI |
| | Optical mark recognition | åOõ‚ °P àí˜î™ |
| | Optical mouse | åOõ„ ²†® |
| | Optical page reader | åOõŠ ð‚èŠ ð®ŠH |
| | Optical printer | åOõ Ü„²Šªð£P |
| | Optical reader | åOõŠ ð®ŠH |
| | Optical reader wand | åOõŠ 𮂰‹ «è£™ |
| | Optical recognition device | åOõ à혾 ê£îù‹ |
| | Optical resolution | åOõˆ ªîO¾ |
| | Optical scanner | åOõ õ¼® |
| | Optimal merge tree | à芹„ «ê˜Š¹ ñó‹ |
| | Optimisation | àèŠð£‚è‹ |
| | Optimising compiler | àè¾Áˆ¶ ªî£°ŠH |
| | Optimize | àèŠð£‚° |
| | Optimum | à芹G¬ô |
| | Optimum programming | à芹 Góô£‚è‹ |
| | Optimum tree search | à芹 ñóˆ «îì™ |
| | Option key | M¼Šðˆ«î˜¾ M¬ê |
| | Options | M¼Šðˆ«î˜¾èœ |
| | Opto electronics | åOõ I¡ùµMò™ |
| | OR operator | Ü™ô¶ ªêòŸ°P |
| | OR circuit | Ü™ô¶ I¡²ŸÁ |
| | OR gate | Ü™ô¶ õ£J™ |
| | Order | õK¬ê |
| | Order of operation | ªêò™ð£†´ õK¬ê |
| | Ordinate | G¬ô‚ ÃÁ |
| | Organisation Chart | GÁõù Gó™ðì‹ |
| | Organisational control | GÁõù‚ 膴Šð£´ |
| | Organise Favourites | èõ˜¾è¬÷ 広°ð´ˆ¶ |
| | Organiser | ܬñŠð£÷˜ |
| | Organization, file | «è£Š¹ ܬñŠ¹º¬ø |