- [[MOSFET]] ![[CleanShot 2024-09-25 at [email protected]|400]] - transistor is just an electrical switch, on or off - it blocks the flow in a circuit, unless you send a signal to its control pin ![[CleanShot 2024-09-25 at [email protected]|200]] https://www.computerhistory.org/revolution/digital-logic/12/273