Backing Storage (storage unit)

One important tool in the Central Processing Unit (CPU) is a data storage (media store data). Data storage is a means whereby data - data is stored. Storage or memory is usually called a storage area or reservoir data and programs. Can also be said as the Electronic Filing Cabinet on a computer system. The most important parameters in a memory or data storage systems, such as
Capacity (capacity), ie the maximum number of units that can store any data.
Access time (access time), ie the time required for
access the data.
Data transfer speed (data transfer rate), ie the number of bits per second data
which can be read.
Cycle time (cycle time), which is a measure of how often memory can
accessible

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