Linked from

The 14 pages that link to Relay, each with the reason it gives.

• Digital logicRelated: Relays provided early physical switches for implementing Boolean operations.

• Programmable logic controllerRelated: Relay banks were the hard-wired control systems PLCs were designed to replace.

• Electrical contactRelated: Its contacts switch circuits while facing wear, arcing, and resistance constraints.

• Samuel MorseRelated: Relays allowed telegraph signals to be renewed across longer routes.

• PlugboardRelated: Relays are common electromechanical components whose connections a plugboard can configure.

• Herman HollerithRelated: Relays helped turn detected card patterns into machine operations.

• Electronic lockRelated: A controller can use a relay to switch power to a lock actuator.

• Harvard Mark IRelated: Relays formed the Mark I’s switching logic and controlled its operations.

• Howard H. AikenRelated: Thousands of relays represented and controlled the machine’s operations.