Glossary - 5
H
Hard Reset.
See
Cold Boot
.
Hz.
Hertz; A unit of frequency equal to one cycle per second.
Host Computer.
A computer that serves other terminals in a network, providing such services as computation, database
access, supervisory programs and network control.
High-Speed Downlink Packet Access (HSDPA).
A 3G (third generation) mobile telephony communications protocol in the
High-Speed Packet Access (HSPA) family, which allows networks based on Universal Mobile Telecommunications
System (UMTS) to have higher data transfer speeds and capacity.
I
IDE.
Intelligent drive electronics. Refers to the solid-state hard drive type.
IEC.
International Electrotechnical Commission. This international agency regulates laser safety by specifying various laser
operation classes based on power output during operation.
IEC (825) Class 1.
This is the lowest power IEC laser classification. Conformity is ensured through a software restriction of
120 seconds of laser operation within any 1000 second window and an automatic laser shutdown if the scanner's
oscillating mirror fails.
IEEE Address
See
MAC Address
.
Input/Output Ports.
I/O ports are primarily dedicated to passing information into or out of the terminal’s memory. Series
9000 mobile computers include Serial and USB ports.
Interleaved 2 of 5.
A binary bar code symbology representing character pairs in groups of five bars and five interleaved
spaces. Interleaving provides for greater information density. The location of wide elements (bar/spaces) within each
group determines which characters are encoded. This continuous code type uses no intercharacter spaces. Only
numeric (0 to 9) and START/STOP characters may be encoded.
Intercharacter Gap.
The space between two adjacent bar code characters in a discrete code.
Interleaved Bar Code.
A bar code in which characters are paired together, using bars to represent the first character and
the intervening spaces to represent the second.
Internet Protocol Address.
See
IP
.
IOCTL.
Input/Output Control.
I/O Ports.
interface The connection between two devices, defined by common physical characteristics, signal
characteristics, and signal meanings. Types of interfaces include RS-232 and PCMCIA.
IP.
Internet Protocol. The IP part of the TCP/IP communications protocol. IP implements the network layer (layer 3) of the
protocol, which contains a network address and is used to route a message to a different network or subnetwork. IP
Summary of Contents for MC75 - Worldwide Enterprise Digital Assistant
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