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.
Many different types of memory were used in first generation computers, a few of the most commonly used were:electrostatic cathode ray tubes (DRAM)sonic delay lines (DSAM)electrostatic selectron tubes (SRAM)magnetic drums (NVSSAM)magnetic disks (NVSSAM)magnetic core stacks (NVSRAM)Magnetic core memory eventually became dominate.Second and third generation computers continued to use sonic delay line memory, magnetic disk memory, and magnetic core memory (with magnetic core memory still dominating).Late in the third generation computers solid state memory chips replaced all other types of memory.Fourth generation computers used only solid state memory chips.
The UNIVAC I used recirculating acoustic mercury delay lines for memory. Such delay lines were originally developed during WWII as part of RADAR display analog signal processing circuits to remove stationary background clutter from the screen and make it easier to identify moving targets. Several engineers hired by Eckert and Machley came from a RADAR background, so this type of memory was logical to use.
Storage device
The main similarity of storage devices and memory is that both are used for storing documents, files and images. They all come in different storage capacity.
A storage device is used to store data when data is not being used in memory.
A storage device is used to store data when data is not being used in memory.
GB(Gygabytes) or MB(megabytes)
FLASH MEMORY is used in cell phones.
Main memory (RAM) is fast, volatile, and used for temporary storage during program execution, while backing storage (like hard drives or SSDs) is slower, non-volatile, and used for long-term storage of data.
memory card
fragmentashon is a phenomena in which storage sapce is used inefficetively,reducing storage capacity