The Story Behind USB Logo

The Universal Serial Bus or as know "USB" logo was inspired by Neptune's Trident, "...Although the trident before may symbolize power and authority, the USB trident is more commonly attributed to the technological ‘power’ one can get from attaching the USB to the computers and other devices...The shapes at the tip of the three-pronged spear (triangle, square and circle) in the USB logo are placed there to signify all the various peripherals that can be attached if the standard devices are used. It also denotes how interconnected the world has become, thanks to the technological innovations that the USB has imparted..."

For more History you can read here 
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