Automation System
The program counter:

contains the address of the next instruction to be executed
counts the number of instructions that have been executed
decides which program to run
is where arithmetic is done in a computer.
None of these

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Automation System
A dc servo motor:

uses a tachometer for speed feedback
All of these
None of these
can provide precise position control
uses a variable dc voltage for speed control

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Automation System
Resolution in a CRT refers to:

the number of addressable elements on the tube
the speed at which the monitor can accept data from the computer
the number of phosphor dots that react when hit by the electron beam
None of these
the number of pixels in each square centimeter

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