Explanation: USB (Universal Serial Bus) is the most popular connection used to connect a computer to devices such as digital cameras, printers, scanners, and external hard drives. USB is a cross-platform technology that is supported by most of the major operating systems. It can run on any hardware platform (PC, Mac, etc.) or OS platform (Linux, MacOS, Unix, Windows, etc.). Unlike most removable drives, a USB drive does not require rebooting after it's attached, does not require batteries or an external power supply, and is not platform dependent.