Flash Media is a solid-state removable storage that utilizes a non-volatile chip to retain data. This includes Compact Flash, Smart Media, Secure Digital (SD), Multimedia Cards (MMC) and Memory Stick.
USB storage devices, often called a memory stick, thumb drive, flash drive and by many other names have become omnipresent media for everything from computer data, mp3 players and digital cameras. The small size, low price point and large amount of data you can hold, makes it an attractive choice to other media storage options.
Flash disks are solid-state devices and, therefore, have no moving parts. Plugging it into the USB drive, the flash drive is automatically identified by the computer without any need of installing additional software. With expected lifetime measured in hundreds of thousands of write-erase cycles, flash drives are likely to last up to 10 years. That’s more than twice that of a hard disk.