Titlebook: Interfacing the B. B. C. Microcomputer; Brian Bannister,Michael Whitehead Textbook 1985Latest edition Macmillan Publishers Limited 1985 co

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The User Port,f a Versatile Interface Adaptor, VIA, which provides a wide range of facilities to interface external circuits to the computer, and in order to control the flow of signals through the ports we must have a good understanding of how the device operates.

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Some Applications,nventional thermostatically controlled oven. The water temperature control section of an automatic washing machine also works in this way; the hot water supply is turned fully on, and the cold water supply is pulsed on and off at a rate that gives the correct temperature of the water mixture.

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Macmillan Publishers Limited 1985

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The 1 MHz Bus,uffered access to the internal address and data buses. The 1 MHz bus allows us to connect circuitry and system extensions to our computer, which are more complicated than those on the user port, but in order to make good use of its capabilities we have to understand the way in which it is structured and a few of its idiosyncracies.

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th in terms of concepts and format, an already successful wo.This volume brings together a range of interdisciplinary perspectives on a topic of central importance, but which has otherwise tended to be approached from within just one or another disciplinary framework. Most of the essays contained he

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