The advancement in electronics and communication technology made the people to store any kind of data in a small chip called flash memory. The computer uses hard disk to store data like photographs, PDF, document, video files, songs and many more. The hard disk cannot be transferred to the place exactly where you need information and if you aware of security needed for your data use flash memory, which is more compact than other external storage devices. Flash memory is used for storing the data faster and can be gained access easily than other storage items like CD and DVD. The flash memory application is widely used in digital cameras, mobile phones and as data backup storage device in home from your computer. It is the type of EPROM chip. The chip is designed with grid of rows and columns with two transistors. The floating gate and control gate transistors used inside the flash memory. The RAM flash is used in the car radio, because it need external source of power to maintain the data, while it is not required in flash memory. The smart media and compact flash is the well know flash memory card. The size of compact flash is small and has the storage capacity from 8 MB to 100GB.
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