TI-DNOS

Distributed Network Operating System (DNOS).
The Distributed Network Operating System (DNOS) is a general purpose,
multitasking operating system designed to operate with the Texas Instruments
990/10, 990/10A and 990/12 minicomputers.
DNOS includes a sophisticated file management package which provides support
for key indexed files, sequential files, and relative record files.
DNOS is a multiterminal system that is capable of making each of several users
appear to have exclusive control of the system.
DNOS supports output spooling and program accessible accounting data.
Job level and task level operations enable more efficient use of system
resources.
In addition to multiterminal applications, DNOS provides support for advanced
program development.
Users communicate with DNOS by entering commands at a terminal or by providing
a file of commands.
The System Command Interpreter (SCI) processes those commands and directs the
operating system to initiate the action specified by a command.
A text editor allows the user to enter source programs or data into the system.
A Macro Assembler is provided for assembly language programs.
Several high level languages, including Fortran, COBOL, BASIC, RPG II, and
Pascal, are supported.
A link editor and extended debugging facilities are also provided.
A variety of utility programs and productivity tools support access to and
management of information contained in a data base, design of specific forms
on the screen of a video display terminal (VDT), and word processing.
The system supports a wide range of user environments.
DNOS can support as few as one or two terminals, thus allowing the user of a
smaller System to perform tasks efficiently and yet inexpensively.
Larger configurations with a wide variety of peripherals are also supported.
The maximum configuration size varies with the user's environment.
Almost every minicomputer system requirement or application need can be met
with DNOS.
DNOS provides the base for a variety of communications products.
Standard protocols for IBM 2780/3780 and for IBM 3270 communications are supported.
Local area network software is supported for network input/output (I/O) and
logon.
In addition, sophisticated networking software is available with the
Distributed Network Communications System (DNCS) and Distributed Network I/O
(DNIO) packages.
DNCS includes networking capabilities for X.25 and IBM's Systems Network Architecture
(SNA) protocols.
DNIO provides users transparent access to other TI 990s running DNOS and can
be used to connect to local or wide-area networks.
DNOS is an international operating system designed to meet the commercial
requirements of the United States, most European countries, and Japan.
DNOS supports a complete range of international data terminals that permit
users to enter, view, and process data in their own languages.
The system includes error text files that can be edited so that error messages
can be easily translated into languages other than English.
DNOS Features.
DNOS supports features that incorporate the computing power of the larger
computers, and it is upwardly compatible with other Texas Instruments operating
systems.
DNOS features include: