Difference between Primary storage and secondary storage?

Main memory: – only large storage media that the CPU can access directly.Secondary storage: – extension of main memory that provides large nonvolatile storage capacity.
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rakesh trichy

  • Oct 12th, 2008
 

Primary is were the operating system and other files are stored which is usually the hard drive. Secondary is a second hard drive or a CD/DVD ROM or 3 1/4 inch floppy drive or any other type of device that stores data. * Primary storage is usually RAM; ~10ns access time* Secondary storage is usually hard disk drives; ~10ms access time# Secondary storage is persistent.# Databases are stored in secondary memory, and large databases are manipulated in secondary storage.

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