NDLI: Down-time announcement and recovery network

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Down-time announcement and recovery network

Lexical characteristics of keywords in COBOL, FORTRAN, Pascal, and PL/I

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A FORTRAN based computer program to perform goodness of fit testing of empirical data to theoretical probability distributions

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Deletion in a relational data base defined on a non-redundant data model

Potentials and problems of the classification space method

Optimizing effective interaction of systems analysis, user services and operations groups within a computer installation

Evaluation of the attributes of the computer science graduate

The use of small computer systems in CAI

UNIX to DEC-10: a simple teleprocessing link

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TVA's materials management system (MAMS) project

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Down-time announcement and recovery network

Content Provider	ACM Digital Library
Author	Dumoulin, Jim
Abstract	The PLATO IV computer-based education system is a large scale timesharing communications network capable of supporting hundreds of remote terminals. Terminals are located in offices, college campuses and high schools throughout Florida and tie into the FSU computing system by standard voice grade phone lines.Anyone who has worked with computers is aware that occasionally an interruption of service will occur. It is especially important in the PLATO environment that all users be informed if the system must be down for a short unscheduled interruption.Since all the terminals are connected via dedicated phone lines, ideally, what is needed is a way to send downtime information through the phone network without having to rely on the computer or any of its associated peripherals. The DARN (Downtime Announcement and Recovery Network) which is currently under development at FSU will provide that capability.A standard cassette recorder will play pre-recorded streams of digital data words into the communications network. The cassettes are recorded with an interactive display and character designing editor while the computer is running, and a tape recording is then made of the formatted output. Thereby, even when the computer is down, this tape can be played back in order to recreate any display which was created at an earlier session with the computer. This paper will contain a description of the hardware and software utilized in making the DARN system work.
Starting Page	146
Ending Page	146
Page Count	1
File Format	PDF
DOI	10.1145/503506.503537
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1979-04-09
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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