The US Supreme Court Has Ruled That There Are Classes of of Items

question 80

Multiple Choice

The U.S. Supreme Court has ruled that there are classes of items that cannot be patented.

• A) two
• B) three
• C) four
• D) five

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Definitions:

Status Indicators

"LEDs that indicate the on-off status of an input or output point and are visible on the outside of the PLC."

Output Module

A hardware component in a PLC that provides the interface and electrical signal conversion to control output devices.

Output Load Device

A device controlled by the output of a programmable logic controller or other control system, performing functions in response to electrical signals.