It means when you are controlling the device for e.g. phone, computer, printer and etc.
It means the battery will operate a device for 8 hours before recharging is needed.
This device can operate within a voltage range of 110-240V.
To operate a push button switch, simply press the button to turn the device on or off. Pressing the button once will toggle the device's power status.
Inflatable PFD
You use the touch screen to operate the iPad device.
voltmeter
The Network Interface cards
a device that is controlled by you touching the surface of it to operate
A motor will operate on 400 volts.
No. Bluetooth and infrared devices operate on separate frequencies.
Device drivers
An Android smartwatch wearer does need an Android device to fully utilize it. It will not operate on an iPhone.