The power switch on the back of the case is actually for the power supply installed in the computer.
Power supply on off switch symbol.
The switch does not fully disconnect the device from its power supply this may appear on a toggle switch opposite a power on symbol alone on a pushbutton that places the device into a standby state or alone on a button that switches between on and standby.
On off power button symbols i o.
O means the power is off and means the power is on.
Because i thought that it represent a power line that can be plugged on symbol and a closed line and thus without power supply but seen that in wikipedia said that it can come from 1 and 0 used in binary to represent on and off bits i don t know.
They are the international symbols for power on and power off.
Because it means that devices with that broken o symbol are not truly off until they are unplugged.
The power switch is a rocker switch and it has two symbols on the face.
It does not really represent off it represents low power.
Why is this important.
A flip of the switch in one direction turns the device on and a flip in the other turns the device off.
Some older devices instead have a power switch that accomplishes the same thing as a hard power button.
To turn the power washer off press.
To turn the power washer on press the down on the power switch.
Iec 5009 the standby symbol line partially within a broken circle indicates a sleep mode or low power state.
I know i line and o circle symbols are used to specify a switch that turn on and off the power supply.
Iec 5010 the power on off symbol line within a circle is used on buttons that switch a device between on and fully off states.