Did you know that the symbol for power / standby mode used on Â most electronics today has existed since 1973? Â At the time, it was included in a standard created by the International Electrotechnical Commission (IEC) for use on various electrically powered equipment. Â Originally this symbolÂ was meant to be used for Â “Standby” mode. Â It wasn’t until 2004 that its current more generic “Power” meaning was adopted in a standard released by the Institute of Electrical and Electronics Engineers (IEEE). Â The symbol is composed of two superimposed numbers, 1 meaning on, and 0 meaning off.