ISSN:1744-683X    

DOI:10.1049/sm.1983.0023

出版商:IEE    

年代:1983

数据来源: IET

摘要:

Technology has made it possible to create huge numbers of single-chip computers at low cost. Because declarative languages allow parallel evaluation in a natural manner, one attractive possibility for novel architects is to ‘buy speed’ from recent technology by organising large numbers of chips to work in concert on the evaluation of a single declarative program. Following a brief introduction to the field of ‘declarative architectures’, some of the central issues are developed, and various novel architectures are discussed using a new classification based on the way work is distributed. The conclusion is that, even if the more extreme claims for ‘buying speed’ from VLSI for declarative languages fail to materialise, ‘super von Neumann’ implementations will make the new languages practicable very soon

ISSN:1744-683X    

DOI:10.1049/sm.1983.0024

出版商:IEE    

年代:1983

数据来源: IET

摘要:

The paper describes the design philosophy and development of a digital frame store for use with scanning microscopes. The motivation behind this was the need to provide a reliable high-quality image display, while taking advantage of the powerful electronic echniques for image storage and processing. The speed of scanning, image size and the need for a general-purpose instrument that could be used without programming knowledge precluded the use of a standard microprocessor system. From its original conception as a storage tube replacement, a computer interface was an integral part of the design. This, along with the modular design approach, has enabled the authors to extend and to enhance the system to include real-time grey-scale enhancement and false-colour processing options, while maintaining the low cost and simplicity of use of the basic system

ISSN:1744-683X    

DOI:10.1049/sm.1983.0025

出版商:IEE    

年代:1983

数据来源: IET

摘要:

Microcomputer applications frequently necessitate the use of systems software to co-ordinate application tasks which share a single processor. Basic design decisions in the operating system nucleus determine system performance with regard to task time scheduling and event scheduling. The paper discusses the design and implementation of a real-time operating system nucleus which employs non-pre-emptive task scheduling. Three stages in the development of the design are described

ISSN:1744-683X    

DOI:10.1049/sm.1983.0027

出版商:IEE    

年代:1983

数据来源: IET

ISSN:1744-683X    

DOI:10.1049/sm.1983.0028

出版商:IEE    

年代:1983

数据来源: IET

ISSN:1744-683X    

DOI:10.1049/sm.1983.0032

出版商:IEE    

年代:1983

数据来源: IET