摘要:

The paper describes a methodology for the implementation of structured, networking software. The particular communication protocol to be implemented is first defined in the form of an extended event/state-transition table. This is effectively a tabular representation of the state transitions associated with the protocol but extended to include the corresponding actions to be performed at each transition. This naturally leads to a precise and readily understood definition of the protocol which can readily be implemented using a structured procedural language. As an example of the use of the methodology, the paper also describes the implementation details of a networking package for a small floppy-disc-based single-user computer system based on the X25 standard protocol

ISSN:1744-683X    

DOI:10.1049/sm.1982.0014

出版商:IEE    

年代:1982

数据来源: IET

摘要:

The paper is concerned with an investigation into the role of the CCITT standard protocol X25 in a local area network environment. The paper first describes a suitable topology for such networks, comprising a high-level network incorporating an X25-based packet-switching exchange. The design and implementation details of a multiple processor packet switch are then described and performance details of the implemented system are presented

ISSN:1744-683X    

DOI:10.1049/sm.1982.0015

出版商:IEE    

年代:1982

数据来源: IET

摘要:

The design of a microcomputer system for the domestic-appliance market must emphasise simplicity of use, while providing a range of options for differing end products. The paper outlines a cooker clock unit now in production, and goes on to describe the incorporation, in a later unit, of on-chip control of oven temperature. This employs a novel technique which avoids the need for true analogue-to-digital, or digital-to-analogue conversion, while providing accurate control to a precision of 5° in 300°

ISSN:1744-683X    

DOI:10.1049/sm.1982.0016

出版商:IEE    

年代:1982

数据来源: IET

ISSN:1744-683X    

DOI:10.1049/sm.1982.0022

出版商:IEE    

年代:1982

数据来源: IET