NonStop System Glossary

Archive and Database Maintenance Interface
A block-mode interface run by a database or system administrator at both the host system and
target systems to perform Distributed Systems Management/Software Configuration Manager
(DSM/SCM) maintenance functions.
ASCII
American Standard Code for Information Interchange. A single-byte code set that uses only 7 of
the 8 bits in a byte to represent each character. The ASCII code set contains the uppercase and
lowercase characters of the U.S. English alphabet, some punctuation symbols, the digits 0 through
9, and some symbols and control characters. Because of its limited characters, and because the
8th bit is sometimes used in ASCII programs as a utility bit, the ASCII code set is not appropriate
for use in international software.
ASIC
See application-specific integrated circuit (ASIC).
ASSIGN
A TACL command you can use to associate a file name with a logical file of a program or to assign
a physical device to logical entities that an application uses.
assign message
Within Subsystem Control Facility (SCF), a message created by SCF for each ASSIGN command.
A new process must request its assign message following receipt of the startup message. All assign
messages set by the SCF ASSIGN command, plus the ones read from the TACL command interpreter,
are passed to the new process.
assumed object
The object type or object name specified by a Subsystem Control Facility (SCF) ASSUME command.
If an ASSUME command has been used to establish a default object type and fully qualified default
object name, and if that object type and object name together refer to a valid object, object-spec
can be omitted entirely from an SCF command, and the command is applied to the object known
as the assumed object.
asynchronous wide area network (AWAN) servers
A local area network (LAN)-based communications device that provides
• Asynchronous connections to terminals, printers, and terminal emulators for NonStop servers;
• Remote-access disk operating system (DOS), Windows, and Macintosh platforms;
• VT-to-6530 protocol conversion; and
• Dial-out connections for LAN-attached DOS, Windows, and Macintosh platforms.
ATM 3 ServerNet adapter (ATM3SA)
A ServerNet adapter that provides access to Asynchronous Transfer Mode (ATM) networks from
a NonStop S-series system enclosure. The 3860 ATM3SA supports the ATM User-Network Interface
(UNI) specification over a 155-megabit/second (Mbps) OC-3 Sonet (Synchronous Optical Network)
connection.
ATM3SA
See ATM 3 ServerNet adapter (ATM3SA).
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