Sun Microsystems Sun Fire X4200 - Manual (Page 181)

Glossary-9
G
gateway A computer or program that interconnects two networks and then passes data
packets between the networks. A gateway has more than one network
interface.
Gigabit Ethernet Ethernet technology that transfers data up to 1000M bits per second.
Grand Unified
Bootloader (GRUB) A boot loader that can install two or more operating systems (OS) onto a single
system and that can manage which OS to boot at power-on.
graphical user interface
(GUI) An interface that uses graphics, along with keyboard and mouse, to provide
easy-to-use access to an application.
H
heatsink A structure, attached to or part of a semiconductor device, that can dissipate
heat to the surrounding environment.
host A system, such as a backend server, with an assigned Internet Protocol (IP)
address and host name. The host is accessed by other remote systems on the
network.
host ID Part of the 32-bit Internet Protocol (IP) address used to identify a host on a
network.
host name The name of a particular machine within a domain. Host names always map to
a specific Internet Protocol (IP) address.
hot plug Describes a component that is safe to remove or add while the system is
running. Typically, the system must be rebooted before the hot-plug
component is configured into the system.
hot swap Describes a component that can be installed or removed by simply pulling the
component out and putting a new component into a running system. The
system either automatically recognizes the component change and configures
it, or requires user interaction to configure the system. However, in neither case
is a reboot required. All hot-swappable components are hot pluggable, but not
all hot-pluggable components are hot swappable.