Deck 3: Processor Unit

Question 1

What are the two general classifications of processor memory?

Answer 1

The processor memory is divided into two general classifications: user memory and storage memory.

Question 2

The processor may be a self-contained unit, or may be modular in design, and plug directly into the I/O rack.

Answer 2

True

Question 3

Describe the job of the processor.

Answer 3

The processor controls the operation of the output devices that are connected to the output modules based on the status of the input devices and the program that has been entered into memory.

Question 4

The binary system has a base 10.

Question 5

A major cause of failure of memory chips and other sensitive electronic components is ____________________.

Question 6

The processor unit houses the microprocessor, memory module(s), and the communications circuitry necessary for the processor to operate and communicate with the I/O and other peripheral equipment.

Question 7

The processor is often referred to as the ____________________.

Question 8

The volatile RAM chips used today are as susceptible to damage from static charges as those used a few years ago.

Question 9

PLCs are available with memory sizes ranging from as little as ____________________ words for small systems up to 32 meg (million) for the larger systems.

Question 10

____________________ memory is where the status (ON or OFF) of all input and output devices is stored.

Question 11

What is ESD?

Question 12

The ____________________, or "brain," of the programmable logic controller is the decision-maker that controls the operation of the equipment to which it is connected.

Question 13

Memory chips used in the processor can be separated into two distinct groups: volatile and nonvolatile.

Question 14

What is an EEPROM?

Question 15

Identify the parts of the processor.