Analysis is carried out to formulate the relationships among feasibility of data broadcasting, inter-processor-element I/O bandwidth, processor-element hardware complexity, and array throughput for VLSI computing arrays.
ISBN:
(纸本)0818606428
Analysis is carried out to formulate the relationships among feasibility of data broadcasting, inter-processor-element I/O bandwidth, processor-element hardware complexity, and array throughput for VLSI computing arrays.
Summary form only given. The author outlines the growth of the PLC market and calls attention to the general lack of good documentation provided by the PLC manufacturers. This has created an opportunity for third-part...
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Summary form only given. The author outlines the growth of the PLC market and calls attention to the general lack of good documentation provided by the PLC manufacturers. This has created an opportunity for third-party developers to fill this need. OEM machine builders and many PLC users also needed to support PLC program development and documentation from multiple PLC manufacturers, using a single 'universal' hardware system. It is noted that the wide acceptance of IBM type personal computers in business created a natural vehicle to host software that would satisfy the need for a universal tool to provide PLC documentation and program development. A demonstration of this documentation software is included.
From an ergonomist's point of view it is important to understand the tasks and objectives a user is concerned with. Before a systems designer starts developing an application system his understanding of the applic...
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ISBN:
(纸本)0444877738
From an ergonomist's point of view it is important to understand the tasks and objectives a user is concerned with. Before a systems designer starts developing an application system his understanding of the application case can be facilitated by means of a knowledge base. To provide this knowledge an ergonomist may help, since work-analysis is his professional research field. This paper is intended to illustrate how work-analysis and user participation may contribute to the development of applications systems so that some ergonomic design principles may be considered during the software development process. Our approach is not focussed on modelling application domains in manufacturing but in business context.
Despite the relatively small number of window managers available today, they exhibit great diversity in almost all of their characteristics. This presentation categories window managers according to some useful distin...
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Despite the relatively small number of window managers available today, they exhibit great diversity in almost all of their characteristics. This presentation categories window managers according to some useful distinctions, both from the point of view of the user, and from that of the applications programmer.
This paper identifies ten common management problems in the development and use of computer simulations. It then presents seven principles to facilitate the successful management of a computer simulation in the contex...
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This paper identifies ten common management problems in the development and use of computer simulations. It then presents seven principles to facilitate the successful management of a computer simulation in the context of its total life cycle.
Optimal and suboptimal systems for generating values of a function from their increments stored in look-up tables are presented. The suboptimal systems requrie up to one bit more for coding one increment than the opti...
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ISBN:
(纸本)0444878130
Optimal and suboptimal systems for generating values of a function from their increments stored in look-up tables are presented. The suboptimal systems requrie up to one bit more for coding one increment than the optimal system, while the number of operations for computing the value of a function reduces in their case from O(2**k) to O(k), where 2**k is the number of stored increments.
This paper describes the changes technology has brought to the I/O structures and configurations of Programmable Controllers, culminating in GENIUS, a distributed intelligent digital and analog I/O system, recently an...
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ISBN:
(纸本)0947719059
This paper describes the changes technology has brought to the I/O structures and configurations of Programmable Controllers, culminating in GENIUS, a distributed intelligent digital and analog I/O system, recently announced by General Electric - U. S. A. The paper shows how this innovation will prove to be the standard I/O system for Programmable Controllers, Industrial computers for the next decade.
We present an algorithm for checking satisfiability of a linear time temporal logic formula over a finite state concurrent program. The running time of the algorithm is exponential in the size of the formula but linea...
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ISBN:
(纸本)0897911474
We present an algorithm for checking satisfiability of a linear time temporal logic formula over a finite state concurrent program. The running time of the algorithm is exponential in the size of the formula but linear in the size of the checked program. The algorithm yields also a formal proof in case the formula is valid over the program. The algorithm has four versions that check satisfiability by unrestricted, impartial, just and fair computations of the given program.
Summary form only given. A single-chip, one-pixel/20-ns color lookup table (CLUT) is described with full TTL compatible inputs, a single plus 5-V power rail and an order of magnitude reduction in power requirement ove...
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Summary form only given. A single-chip, one-pixel/20-ns color lookup table (CLUT) is described with full TTL compatible inputs, a single plus 5-V power rail and an order of magnitude reduction in power requirement over existing CLUTs. The design incorporates a pipelined memory access, microprocessor interface circuitry, a pixel word mask and three on-chip DACs producing RGB analog outputs compatible with the RS 170A video standard. The part dissipates less then 600 mW with a 20-ns cycle time and is produced on a twin-tub P-well in the N-substrate CMOS process with silicide and 1. 75- mu m gate lengths.
The interface of the man-computer interaction for CNC-control has been designed according to software-ergonomical principles. The design was based upon a layered man-computer interface model and an overall interface d...
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ISBN:
(纸本)0444877738
The interface of the man-computer interaction for CNC-control has been designed according to software-ergonomical principles. The design was based upon a layered man-computer interface model and an overall interface design methodology. With the incorporation of an object oriented design and programming methodology, a large degree of freedom is won in the design of several interface parameters (e. g. colour coding) Thus, at a relatively early stage an evaluation of the man-computer interface can take place due to the rapid prototyping approach chosen.
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