NDLI: Management of periodic operations in a real-time computation system

Please wait, while we are loading the content...

Multiprogramming for hybrid computation

Textile graphics applied to textile printing

Current status of large scale integration technology

The effect of digital compensation for computation delay in a hybrid loop

Graphic CRT terminals: characteristics of commercially available equipment

System architecture for large-scale integration

Management of periodic operations in a real-time computation system

Mass storage revisited

On designing generalized file records for management information systems

Winged words: varieties of computer applications to literature

The B8500-microsecond thin-film memory

Development of executive routines, both hardware and software

An approach to the simulation of a time-sharing system

Requirements for a shared data processing system for hospitals

The impact of new technology on the analog hybrid art-I

Information services and communications: (computer utilities)

Another look at data

Computer change at the Westinghouse Defense and Space Center

A debate main frame memory technology

Bulk core in a 360/67 time-sharing system

A practical method for comparing numerical integration techniques

A graphic tablet display console for use under time-sharing

Design of fault-tolerant computers

JOSS: 20,000 hours at a console: a statistical summary

The IADIC: a hybrid computing element

Holographic display of digital images

Large-scale integration from the user's point of view

Hybrid Apollo docking simulation

How do we stand on the big board?

A generalized supervisor for a time-shared operating system

High-speed thermal printing

The planning network as a basis for resource allocation, cost planning and project profitability assessment

Music and computing: the present situation

Bit access problems in 2-1/2D 2-wire memories

Systems recovery from main frame errors

Experiments in software modeling

Use of displays with packaged statistical programs

Dataless programming

Machine-independence and third-generation computers

Modular computer design with picoprogrammed control

AutoSACE-automatic checkout for Poseidon

Multi-function graphics for a large computer system

Some relationships between failure detection probability and computer system reliability

How to write software specifications

PHENO: a new concept of hybrid computing elements

Half-tone perspective drawings by computer

A family of linear integrated circuits for data systems

Hybrid, six-degree-of-freedom, man-and-the-loop, simulation of a lifting reentry vehicle

The CRT display subsystem of the IBM 1500 instructional system

A real time executive system for manned spaceflight

Solid state synchro-to-digital converter

Computer applications in archaeology

Engineering design of a mass random access plated wire memory

Language directed computer design

Design, thru simulation, of a multiple-access information system

MEDATA: a new concept in medical records management

PLANIT: a flexible language designed for computer-human interaction

Intercommunication of processors and memory

Real-time spectral analysis on a small general-purpose computer

Reactive displays: improving man-machine graphical communication

A distributed processing system for general purpose computing

Observations on high-performance machines

VISTA: computed motion pictures for space research

Solution of integral equations by hybrid computation

Conic display generator using multiplying digital-analog decoders

Executive programs for the LACONIQ time-shared retrieval monitor

A new high-speed general purpose I/O with real-time computing capability

Computer applications in political science

A new technique for removable media, read-only memories

SODAS and a methodology for system design

Requirements for a data processing system for hospital laboratories

A formal system for the specification of the syntax and translation of computer languages

Stochastic computing elements and systems

Further advances in two-dimensional input-output by typewriter terminals

Graphic language translation with a language independent processor

The Greenblatt chess program

An executive system for on-line programming on a small-scale system

Low power computer memory system

An advanced computer system for medical research

Generalized translation of programming languages

Management of periodic operations in a real-time computation system

Content Provider	ACM Digital Library
Author	Burnett, Gerald J. Wyle, Henry
Abstract	To understand the problems of real-time control systems it is beneficial to review briefly some of the characteristics of command and control or commercial multiprogrammed systems. Typically, these systems are not time critical and as a result can schedule programs on a queue basis. The System Executive's master scheduling program keeps track of operational programs ready to run (and also keeps track of free processors if the system is a multiprocessor) and then simply assigns programs running time on a priority basis. If the processor (or processors) happens to be busy at a particular moment, the ready-to-run program list becomes a queue. Thus the timing relationships among operational programs of lesser priority are somewhat random, and there is a somewhat unpredictable wait for a given program. In many applications this random wait is acceptable; however, in many real time control systems, in particular real time avionics and space systems, this randomness is not acceptable. For example, if it is time to execute a program with a precise periodicity requirement there must be a guarantee that the processor (or a processor) is available or has lower-priority, interruptable programs in execution. If all the processors happen to be engaged in executing other programs with precise periodicity requirements at this time, a system bottleneck would exist. This bottleneck would introduce errors in the accuracies of the computations. For example, in an avionics system, if the periodicity is not precisely held, a weapon delivery program could easily cause the weapons to miss the target, or an automatic terrain-following program could cause a plane to crash or be forced to pull up to higher altitudes.
Starting Page	201
Ending Page	208
Page Count	8
File Format	PDF
DOI	10.1145/1465611.1465638
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1967-11-14
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in