Simplify the following text for a Grade 7 native English-speaking person.
Original: The connectors specified by the USB committee were designed to support a number of USB 's underlying goals , and to reflect lessons learned from the menagerie of connectors which have been used in the computer industry .
Simplified: USB was designed to be easy to use . When the connectors were designed , lessons learned from other connection techologies were also applied to USB connectors .