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(a)When I/O devices and memory share the same address space,what
is the arrangement called?[1 mark ] (b)A diagram illustrating the situation described above is as follows:
Explain how this arrangement enables a processor to direct data to
a particular I/O device.[4 marks ] (c)Besides READ and WRITE operations,an I/O module may receive two
other main types of command.Explain what these are,giving a typical
use for each.[6 marks ] (d)In a situation like that pictured above,DMA may be used,and it may utilise cycle stealing Explain what this means.[4 marks ] |
