You have probably come across it more times than you can remember, a symbol that is engraved on almost every household appliance. Well, you have got to know this very symbol happens to have meaning and has actually got quite an interesting history behind it_ one that I plan on recounting to you today. Today, you get to know why it is used in representation of " Power". As early as the 1940's, engineers used a binary system in representing specific switches, where 1 meant "ON" and 0 meant "OFF". The following decades, it then became necessary to convert the numbers into symbols_ so then came the use of a vertical line and a circle depicting the "On" and "Off" functions respectively. Further advancements occurred with the vertical line and the circle being merged together as one symbol as is currently used. Even today, we tend to see the vertical line and the circle separately on some switches as depicted above. But what is very common tends to be the symbol comprising of the vertical line and the circle joined together. Before I go, there's one other thing very worthy of mention, it is very important that you know that there exists another symbol which is denoted by a vertical completely surrounded by a circle.
This symbol is quite rare but does exist and is called the " POWER ON/OFF BUTTON" in contrast to the other one which is just called " POWER BUTTON" _ according to the IEEE it is used on buttons that switch a device between "On and Fully Off" states. You probably already know that the first symbol I talked about(Power Button) doesn't fully disconnect appliances from their main power supply but sort of puts them on standby, thereby resulting in the need for this other symbol.
Content created and supplied by: SirYorm (via Opera News )
Opera News is a free to use platform and the views and opinions expressed herein are solely those of the author and do not represent, reflect or express the views of Opera News. Any/all written content and images displayed are provided by the blogger/author, appear herein as submitted by the blogger/author and are unedited by Opera News. Opera News does not consent to nor does it condone the posting of any content that violates the rights (including the copyrights) of any third party, nor content that may malign, inter alia, any religion, ethnic group, organization, gender, company, or individual. Opera News furthermore does not condone the use of our platform for the purposes encouraging/endorsing hate speech, violation of human rights and/or utterances of a defamatory nature. If the content contained herein violates any of your rights, including those of copyright, and/or violates any the above mentioned factors, you are requested to immediately notify us using via the following email address operanews-external(at)opera.com and/or report the article using the available reporting functionality built into our Platform See More