Automation System
When a computer fetches an instruction, the binary code representing the instruction appears on the:

output data bus
input data bus
I/O address bus
None of these
memory data bus

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Automation System
Pressure sensors:

All of these
None of these
use an aneroid chamber with a variable resistance output
use capacitive variations to sense pressure
use the piezoresistive effect in strain gauge sensors

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Automation System
An operating system:

All of these
provides ability for other programmers to understand the software structure
None of these
is useless in most control applications
can help reduce software development time

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