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chapter 8 part 2
Question | Answer |
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eSATA | A standard for external drives based on SATA that uses a special external shielded SATA cable up to 2 meters long. eSATA is up to six times faster than USB or FireWire. |
FAT12 | The 12-bit wide, one-column file allocation table for a floppy disk, containing information about how each cluster or file allocation unit on the disk is currently used. |
file allocation unit | One or more sectors that constitute the smallest unit of space on a disk for storing data (also referred to as a file allocation unit). Files are written to a disk as groups of whole clusters. |
floppy disk drive | A drive that can hold either a 5 inch or 3 inch floppy disk. Also called floppy drive. |
hard drive controller | the firmware that controls access to a hard drive contained on a circuit board mounted on or inside the hard drive housing. |
head | The top or bottom surface of one platter on a hard drive. Each platter has two heads. |
high-level formatting | Formatting performed by the Windows Format program (for example, FORMAT C:/S), the Windows installation program, or the Disk Management utility. |
host adapter | The circuit board that controls a SCSI bus supporting as many as seven or fifteen separate devices. The host adapter controls communication between the SCSI bus and the PC. |
IDE | A hard drive whose disk controller is integrated into the drive, eliminating the need for a controller cable and thus increasing speed, as well as reducing price. See also EIDE. |
logical unit number | A number assigned to a logical device (such as a tray in a CD changer) that is part of a physical SCSI device, which is assigned a SCSI ID. |