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Glossary - 5
Host Computer. A computer that serves other terminals in a network, providing such services as computation,
database access, supervisory programs and network control.
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.
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.
IOCTL. Input/Output Control.
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.
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.
Internet Protocol Address. See IP.
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.
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.
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 accepts “packets” from the layer 4 transport protocol (TCP or UDP), adds its own header to it and delivers a
“datagram” to the layer 2 data link protocol. It may also break the packet into fragments to support the maximum
transmission unit (MTU) of the network.
IP Address. (Internet Protocol address) The address of a computer attached to an IP network. Every client and server
station must have a unique IP address. A 32-bit address used by a computer on a IP network. Client workstations