Automation System
The integrated circuit:

has revolutionized electronics
(b) and (c)
often is called a "chip"
led to the development of the transistor
None of these

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Automation System
Digital signals:

have a frequency measured in units of hertz
can have three possible levels
None of these
are assigned values of 1 or 0 depending on the voltage level
have a sinusoidal shape.

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Automation System
Semiconductor devices:

None of these
All of these
usually have a very short MTBF (mean time between failure)
have a very short infant mortality period
are less reliable than electro¬mechanical components

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