<![CDATA[Computer Architecture : Weblog]]> Elgg http://edutogether.com/comparch/weblog/ <![CDATA[What are the different types of storage components?]]> http://edutogether.com/comparch/weblog/10.html http://edutogether.com/comparch/weblog/10.html Fri, 04 Jan 2008 07:01:49 GMT Storage Components

Memory:
–Volatile: retains data only when it is powered
–Non-volatile: retains data even when it is not on
–Primary: hold programs when they are running
–Secondary: Store data and programs

DRAM vsMagnetic disks
–Access time for DRAM:40-80 nanoseconds
–Access time for Disks: 5-15 milliseconds
–However cost per megabyte of disk is 100 times less expensive

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