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Glossary
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Glossary
Halftone
An image type that simulates grayscale by varying the number of dots. Highly
colored areas consist of a large number of dots, while lighter areas consist of a
smaller number of dots.
HDD
Hard Disk Drive (HDD), commonly referred to as a hard drive or hard disk, is a non-
volatile storage device which stores digitally-encoded data on rapidly rotating
platters with magnetic surfaces.
IEEE
The Institute of Electrical and Electronics Engineers (IEEE) is an international non-
profit, professional organization for the advancement of technology related to
electricity.
IEEE 1284
The 1284 parallel port standard was developed by the Institute of Electrical and
Electronics Engineers (IEEE). The term "1284-B" refers to a specific connector type on
the end of the parallel cable that attaches to the peripheral (for example, a printer).
Intranet
A private network that uses Internet Protocols, network connectivity, and possibly
the public telecommunication system to securely share part of an organization's
information or operations with its employees. Sometimes the term refers only to the
most visible service, the internal website.
IP address
An Internet Protocol (IP) address is a unique number that devices use in order to
identify and communicate with each other on a network utilizing the Internet
Protocol standard.
IPM
The Images Per Minute (IPM) is a way of measuring the speed of a printer. An IPM rate
indicates the number of single-sided sheets a printer can complete within one
minute.
IPP
The Internet Printing Protocol (IPP) defines a standard protocol for printing as well as
managing print jobs, media size, resolution, and so forth. IPP can be used locally or
over the Internet to hundreds of printers, and also supports access control,
authentication, and encryption, making it a much more capable and secure printing
solution than older ones.