Operating instructions

GLOSSARY 33
Passport / Mike Meyers‘ A+ Certification Passport / Meyers / 226308-3 / Glossary
hex (hexadecimal) A base-16 numbering system using 10 digits (0 through 9)
and six letters (A through F). Used in the computer world as a shorthand way to
write binary numbers, by substituting one hex digit for a four-digit binary num
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ber (e.g., hex9=binary 1001).
hibernation A power management setting in which all data from RAM is
written to the hard drive before going to sleep. Upon waking up, all information
is retrieved from the hard drive and returned to RAM.
hidden attribute A file attribute that, when used, does not allow a file to be
seen when using the DIR command.
hierarchical directory tree The method by which Windows organizes files
into a series of folders, called directories, under the root directory. See also
root directory.
high-level formatting A type of format that sets up a file system on a drive.
high-voltage anode A component in a CRT monitor. The high-voltage anode
has very high voltages of electricity flowing through it.
host A single device (usually a computer) on a TCP/IP network that has an IP
address—any device that can be the source or destination of a data packet. Also,
in the mainframe world, a computer that is made available for use by multiple
people simultaneously.
host adapter An expansion card that serves as a host to a particular device;
for instance, you can install a SCSI host adapter into a system to allow for
SCSI functionality even if SCSI hardware was not originally included with
the machine.
host ID The portion of an IP address that defines a specific machine.
hot-swappable A term used for any type of hardware that may be attached to
or removed from a PC without interrupting the PC’s normal processing.
HotSync (synchronization) A term used to describe the synchronizing of files
between a PDA and a desktop computer. HotSync is the name of the synchroni
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zation program that is used by PalmOS-based PDAs.
P:\010Comp\Passport\308-3\gloss.vp
Monday, April 09, 2007 10:24:44 PM
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