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Computer Science Engineering
Computer Architecture
Difficulty: Medium
We describe a protocol of input device communication below: i) Each device has a distinct address. ii) The BUS controller scans each device in a sequence of increasing address value to determine if the entity wishes to communicate iii) The device ready to communicate leaves its data in the I/O register iv) The data is picked up and the controller moves to the step a Identify the form of communication best describes the I/O mode amongst the following.
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