March 2009

CD Optical Storage Glossary of Computer Terms (Letter O)

ODBO bject Database. A database that can handle diverse and complex data including video images, audio, bit maps, graphics and unstructured text. Opacity Term used to describe the amount an editing technique effects a given area of an image. Opacity in commonly expressed in percentages an can be used to simulate watercolor wash or in sequence segments to fade or dissolve…

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Data encoding schemes

Magnetic storage is essentially an analog medium. The data a PC stores on it, however, is digital information that is, 1s and 0s. When the drive sends digital information to a magnetic recording head, the head creates magnetic domains on the storage medium with specific polarities corresponding to the positive and negative voltages the drive applies to the head.…

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CD Optical Storage Glossary of Computer Terms (Letter M)

Magenta The color obtained by mixing equal intensities of red and blue light. It is also the correct name for the subtractive primary color usually called red. Magneto-optical See CD-WREM. Mastering A real time process in which videotaped materials are used to create a master optical disk that can be replicated into final videodiscs or CD-ROM disks for operation with desktop computers.…

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CD Optical Storage Glossary of Computer Terms (Letter K)

KBPS Kilobits Per Second. A measure of transmission rate in thousands of bits per second commonly referred to as baud rate. Communication channels using telephone modems are established at set bit rates, 300, 1200, 2400, 4800, 9600, 14400 respectively. (example 14.4kbps) Kodak Photo CD A proprietary asymmetric image recording format developed by Eastman Kodak Company and introduced in 1992.…

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How to archive digital images for future use?

Digital images should be treated like any other important computer files: they should be archived and kept in a safe place. Most computers have built-in optical drives for burning compact discs and DVDs, both of which are reasonable archiving media. If you use optical discs for archiving, consider making two sets of backups—one for your home, and another to be kept in a remote location—just in case one set gets damaged.…

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