GUI
Graphical user interface. Software that allows the user to control the device through
visual screens.
hand
The robotic mechanism that grabs tape cartridges and moves them between slots and
the drive. It is a component of the arm. The hand has a reach mechanism that gets
tape cartridges from slots or drives and puts them into slots or drives. The hand also
has a wrist mechanism that rotates the hand to allow it to reach cartridges on either
side or the drives at the back of the library.
hardware
All or part of the physical components of an information processing system, such as
computers or peripheral devices. (T) (A)
HBA
See host bus adapter.
host bus adapter (HBA)
A circuit installed in a multi-platform host or device that interfaces between the device
and the bus.
host computer
In a computer network, a computer that usually performs network control functions and
provides end users with services such as computation and database access. (T)
host interface
An interface between a network and host computer. (T)
import
The process of bringing a cartridge into the library from the mailslot. Also called enter.
indicator
A device that provides a visual or other indication of the existence of a defined state.
(T)
initial program load (IPL)
A process that activates a device reset and loads system programs to prepare a
computer system for operation. Processors having diagnostic programs activate these
Glossary
Glossary-5
