_____ Is Software That Is Distributed, Typically for Free, with the Source

question 49

Short Answer

_____ is software that is distributed, typically for free, with the source code also available so that it can be studied, changed, and improved by its users.

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Definitions:

Mechanical Timing Relays

Electromechanical devices that operate based on a timer mechanism to open or close contacts after a predetermined time delay. They are used in various applications, including control and automation systems.

PLC Timers

Refers to programmable logic controller timers, which are software-based clocks that enable time-based control in automation processes.

Input Instructions

Guidelines or commands given to a system or device specifying the data to be used for processing or operations.

RTO Timer

An abbreviation for "Retentive Timer On," a type of timer in PLC programming that retains its value even after the control power is lost.