MPE/iX Glossary of Terms and Acronyms (32650-90887)

12 Chapter1
Glossary of Terms
automatic in A computer-to-PBX connection sequence. It allows the computer to initiate
an incoming connection on a specified channel from a specified device
through the PBX. No telephone number is given; the device location
(telephone number) is associated with the given channel by an
administrative process on the PBX.
automatic master data set A data set within a database. It contains only one data item
(the key item). It is related to at least one detail data set. When a new
search item value is added to a related detail set, a new entry is
automatically added to the master with that item value as a key. When the
last entry containing that search item is deleted from all related child data
sets, the master entry is automatically deleted.
automatic out A computer-to-PBX connection sequence. It allows the computer to
initiate an outgoing connection on a specified channel to a specified device
through the PBX. No telephone number is given; the device location
(telephone number) is associated with the given channel by an
administrative process on the PBX.
automatic restart Main memory battery backup to automatically restart the system
after a power failure. Temporary power line interruptions can be tolerated
with no data loss and without needing to restart the system.
backplane Wiring blocks or units that provide most of the interconnecting circuits of
a system. Individual printed-circuit boards plug into the backplane. Every
backplane contains multiple card cages.
backreference The technique of using an asterisk (*) before a formal file designator to
indicate that it has been previously defined with the FILE command.
backup The process that duplicates computer data to offline media, such as
magnetic tape. Backups protect data if a system problem should occur.
backup devices System peripherals that allow you to write information to, and read
information from, backup media.
battery backup unit A box within the SPU that contains a battery to supply power to
main memory during a power failure.
BASIC Beginner's All-purpose Symbolic Instruction Code. A computer
programming language.
batch processing A method of submitting a job for processing. A job, which is submitted
as a single entity, can consist of multiple commands such as program
compilation and execution, file manipulation, or utility functions. Once
submitted, no further interaction between the user and the job is
necessary.
batch access capability (BA capability) A default capability.It is assigned to accounts
and users, allowing users to submit batch jobs.
baud A measure of the speed at which information travels between devices. This
signal speed is equal to the number of discrete conditions or signal event
changes per second. When one bit represents each signal change, baud is
the same as bits per second. Terminal speed settings are the most familiar