HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4476 - Page 245

bootstrap service See boot. byte A fundamental character-code unit, usually consisting of 8 bits. CD-ROM Compact Disc Read-Only Memory. See also CD-ROM disc, CD- ROM drive. CD-ROM disc CD-ROM discs are identical to the audio compact discs (CDs) used to record stereo music, except that they store data. CD-ROM discs are 120 mm (4.7 inches) in diameter, and use one data surface with a capacity of 600 MB. The data surface contains pits and flat spots arranged in a continuous spiral track, which is read at a constant speed. CD-ROM drive A random-access, read-only, mass-storage device that uses removable CD-ROM discs. The drive contains a semiconductor laser for reading data optically and an embedded controller with a SCSI interface. Central Processing Unit (CPU) The part of a workstation that interprets and executes instructions. child directory See subdirectory. GL-3