A Pendrive

A plug-and-play portable storage device that employs flash memory and is small enough to hang from a keychain is referred to as a USB flash drive. It is also referred to as a USB stick, USB thumb drive, or pen drive. An alternative to a compact disc is a USB flash drive. The computer's operating system (OS) recognises the flash memory device when it is plugged into a USB port as a detachable drive and gives it a drive letter. A USB flash drive can be used to launch an operating system from a bootable USB, store crucial files and data backups, transport preferred settings or programmes, perform diagnostics to solve computer issues, and more. The drives are compatible with a wide range of BIOS boot ROMs, Linux, MacOS, and Microsoft Windows.