Automation System
The integrated circuit:

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

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Automation System
Relay ladder logic is used in a PC because:

it is the best industrial control language ever developed.
All of these
None of these
it is impossible to write a control program for a machine in any other logic
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use

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