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Glossary of Computer Terms
Terms starting with alphabet 'O'
| Term | Description |
|---|---|
| OCR | OCR is acronym for 'Optical Character Recognition'. It is the technology of converting a scanned document into text that a computer word processor, editor or other text based software can understand. |
| ODBC | ODBC is acronym for "Open Database Connectivity." Any application that supports ODBC can access information from an ODBC-compatible database, regardless of the database management system in use. |
| Offline | 1. When a computer or other device is not turned on or connected to other devices, it is said to be "offline." 2. A computer not connected to the internet is also termed as "offline". |
| Online | It is opposite of offline. 1. When a computer or other is turned on and connected to other devices, it is said to be "online". 2. A computer connected to the internet is also called 'online'. |
| Operating System | Operating System or "OS," is the software that communicates with computer hardware at the most basic level. Without an operating system, no software program can run. The operating system allocates memory, processes tasks, accesses hardware components and peripheral, and serves as the user interface. |
| Optical drive | In computers, "optical" refers to lasers, which can read and write data on optical discs. These discs include CDs and DVDs, which are made up of millions of 'pits' and 'lands'. Optical drives have lasers that read these pits and lands as ones and zeros, which the computer can understand. Some common types of optical drives are CD-ROM, CD-RW, DVD-ROM and DVD RW drives. |
| Output | Data/information generated by a computer is termed as output. |