Electronic device are still alive even when they are off?

AI Thread Summary
Many electronic devices remain partially powered even when turned off due to standby voltages, allowing features like remote control responsiveness and timekeeping. This characteristic varies by device, with modern computers and TVs often equipped with soft on/off switches. If unplugged, these devices are completely off. Even appliances like toasters can draw a minimal current when plugged in, due to imperfect on/off switches. Overall, while some devices can be considered "alive" when off, the extent of this capability depends on the specific technology used.
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is it true that electoronical device are still alive even when they are off? if yes why?
 
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It depends upon the device. The recent generations of computers have a standby voltage which is always on, many TVs and other electronic devices have a similar feature. This allows for soft on/off switches. That means the device is controlled by lower voltages and usually comes up faster.

If you pull the plug they are off cold.

Again this feature depends completely on the device and varies.
 
Yes, it is true.

Devices that are not completely off can:
- respond to a remote control
- keep time
 
There's also the factor that even something like a toaster draws an infinitesimal current when not in use, if plugged in, just because most on/off switches aren't perfect insulators.
 
Danger said:
There's also the factor that even something like a toaster draws an infinitesimal current when not in use, if plugged in, just because most on/off switches aren't perfect insulators.

If a person is going to THAT extreme I'd say leakage in the cord and for that matter the wiring in the house is more significant.
 
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