The advantage of I/O mapped devices to memory mapped is ___________(a) The former offers faster transfer of data(b) The devices connected using I/O mapping have a bigger buffer space(c) The devices have to deal with fewer address lines(d) No advantage as suchThe question was posed to me during an interview for a job.I need to ask this question from Accessing I/O Devices in portion Input/Output Organisation of Computer Architecture

The advantage of I/O mapped devices to memory mapped is ___________(a)

1.	The advantage of I/O mapped devices to memory mapped is ___________(a) The former offers faster transfer of data(b) The devices connected using I/O mapping have a bigger buffer space(c) The devices have to deal with fewer address lines(d) No advantage as suchThe question was posed to me during an interview for a job.I need to ask this question from Accessing I/O Devices in portion Input/Output Organisation of Computer Architecture
Answer» Correct CHOICE is (C) The devices have to deal with fewer address lines The explanation is: Since the I/O mapped devices have a separate address SPACE the address lines are limited by the amount of the space ALLOCATED.

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