peripherals – like the keyboard display interfacing chip, parallel port interfacing chip and serial
communication chip. All these chips are programmable – they have registers for commands,
data and status. By suitably programming these chips, we can get the processor to communicate
correctly with any peripheral. Fig 0.8 shows the use of an I/O interface between an I/O device
and a processor. e processor is not shown in the fi gure, but the system bus which comes from
the processor is shown.
In the fi nal analysis, we can think of a computer that we usually use, as a conglomeration
of components which include memor ...
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