MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

G-20 Glossary
infrared transmission Electromagnetic radiation with frequencies in the electromagnetic
spectrum in the range just below that of visible red light. In network
communications, infrared technology offers extremely high transmission rates and
wide bandwidth in line-of-sight communications.
infrastructure wireless network A wireless network mode in which multiple wireless
stations communicate through an access point.
input language Language installed on a computer running Windows XP Professional
from which the computer can accept input.
instance A particular occurrence of an object in System Monitor.
Institute of Electrical and Electronics Engineers (IEEE) An organization of engineering
and electronics professionals; noted in networking for developing the
IEEE 802.x standards for the physical and data-link layers of the OSI reference
model, applied in a variety of network configurations.
Integrated Device Electronics (IDE) A type of disk drive interface in which the
controller electronics reside on the drive itself, eliminating the need for a separate
network interface card. The IDE interface is compatible with the Western Digital
ST-506 controller.
Integrated Services Digital Network (ISDN) A worldwide digital communication
network that evolved from existing telephone services. The goal of the ISDN is to
replace current telephone lines, which require digital-to-analog conversions, with
completely digital switching and transmission facilities capable of carrying data
ranging from voice to computer transmissions, music, and video. The ISDN is built
on two main types of communications channels: B channels, which carry voice,
data, or images at a rate of 64 Kbps (kilobits per second); and a D channel, which
carries control information, signaling, and link management data at 16 Kbps. Standard
ISDN Basic Rate desktop service is called 2B+D. Computers and other
devices connect to ISDN lines through simple, standardized interfaces.
interfaces Boundaries that separate layers from each other. For example, in the OSI
reference model, each layer provides some service or action that prepares the data
for delivery over the network to another computer.
International Organization for Standardization (ISO) An organization made up
of standards-setting groups from various countries. For example, the United States
member is the American National Standards Institute (ANSI). The ISO works to
establish global standards for communications and information exchange. Primary
among its accomplishments is development of the widely accepted OSI reference
model. Note that the ISO is often wrongly identified as the International Standards
Organization, probably because of the acronym ISO; however, ISO is derived from
isos, which means equal in Greek, rather than an acronym.