Water Fountain-takes pressure, in a seemingly analog way, and gives off a stream of water that increases or decreases with pressure

Handicap Access Button- on/off, press the button to cause the doors to swing open

Fire Extinguisher- manually-operated, relies on a human action to cause it to work

Vacuum- on/off, requires user's actions to activate it. Requires energy of a push to do this.

Doorbell- Example I found the most interesting, takes pressure of a push and gives output as an audible sound

Water Spigot- takes torque movement and gives off increasing/decreasing amount of water. Analog, similar to water fountain