The Ben NanoNote (officially the 本 NanoNote) is a pocket computer using the Linux-based OpenWrt operating system. An open-source hardware device developed by Qi Hardware, it has been called possibly "the world's smallest Linux laptop for the traditional definition of the word.". In addition, the Ben NanoNote is noteworthy for being one of the few devices on the market running entirely on copyleft hardware. The computer takes its name from the Chinese character běn (本), translated as "an origin or the beginning place."