Users Guide

192 Glossary

GPG

Abbreviation for GNU Privacy Guard.

GUI

Acronym for graphical user interface.

GUID

Acronym for Globally Unique Identifier.

Abbreviation for hexadecimal. A base-16 numbering system, often used in

programming to identify addresses in the system's RAM and I/O memory

addresses for devices. The sequence of decimal numbers from 0 through 16,

for example, is expressed in hexadecimal notation as: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A,

B, C, D, E, F, 10. In text, hexadecimal numbers are often followed by h.

HBA

Abbreviation for host bus adapter. A PCI adapter card that resides in the system

whose only function is to convert data commands from PCI-bus format to storage

interconnect format (examples: SCSI, Fibre Channel) and communicate directly

with hard drives, tape drives, CD drives, or other storage devices.

HTTP

Abbreviation for Hypertext Transfer Protocol. HTTP is the client-server TCP/IP

protocol used on the World Wide Web for the exchange of HTML documents.

HTTPS

Abbreviation for HyperText Transmission Protocol, Secure. HTTPS is a variant

of HTTP used by Web browsers for handling secure transactions. HTTPS is a

unique protocol that is simply SSL underneath HTTP. You need to use "https://"

for HTTP URLs with SSL, whereas you continue to use "http://" for HTTP URLs

without SSL.

ICES

Abbreviation for Interface-Causing Equipment Standard (in Canada).

ICMP

Abbreviation for Internet Control Message Protocol. ICMP is a TCP/IP protocol

used to send error and control messages.