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FLASH MEMORY is used in cell phones.
Computer data storage, or memory, is the means through which the computer records and accesses digital data. The two types of storage are primary and secondary. Primary storage includes RAM and process registers, and secondary storage is the hard disk and flash memory.
Second storage memory has 2 definitions, it's either the space in your hard drive that's not occupied by your files and operating system, or it could be portable memory like usb sticks, (flash drives) and CD's.
nonvolatile storage
Non-volatile storage
Flash memory consists of nonvolatile memory chips that can be used for storage by the computer or the user. Flash memory was introduced in 1984.
Flash drives, back up storage units
A "flash stick" is another word for a USB flash drive. The term "flash" is used because it consists of flash memory data storage. Flash memory is is a non-volatile computer storage (computer memory that can retain the stored information even when not powered) that can be electrically erased and reprogrammed.
No.
No, its not an optical storage device.
secondary memories are the memories by which CPU proccesses his programs and application.
For new computers it can be both.