Why is the power button of electronic devices all this symbol?

The power button of electronic devices has become too familiar to us, but have you ever wondered why the power button is this symbol?

All electronic devices from mobile phones, to TVs, laptops, washing machines, microwave ovens . carry this symbol at the power button.

But make sure, we all don't seem to know what this symbol means. Where did it come from?

Power button icon on laptop.

You see the power button icon everywhere. You could even say it is the most popular symbol used in this century. Every day, you turn on and off your mobile phone, TV, laptop, microwave, washing machine, or any other electronic device and you see this icon on the power button.

Power button icon on TV control.

Looking closely at this symbol, it is easy to see that there is a short line inserted into a circle.Actually, it is the number 1 that is nested inside 0.

Power button icon on the phone.

In the past, engineers who had just started marking the open source button, turned off using binary to distinguish. Of course in binary systems, 1 means "open" and 0 means "off".

Until 1973, based on this platform, the "World Electronics Council" decided to take a stylized 0 and 1 stylized image to indicate the standby status for all electrical devices. death.

Popular power button icon.

But then for a while, the IEEE organization (a reputable organization in the field of electronics) decided to change the definition of the symbol by compounding its source function (capable of opening or switching off). for all electronic devices.

And that is also the answer to why the power buttons of electronic devices carry the symbol above.