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What does secondary memory do?

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Answered 2009-08-01 18:28:32

Secondary memory provides more storage space compare to primary memory.

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Secondary memory devices are ones that can have permanent storage. A hard drive, DVD, USB port, or CD are all examples of secondary memory devices.


Primary memory vs Secondary memory Processor access the primary memory in a random fashion. Unlike primary memory, secondary memory is not directly accessed through CPU. The accessing of the primary memory through CPU is done by making use of address and data buses, whereas input/ output channels are used to access the secondary memory. The primary memory is embedded with two types of memory technologies; they are the RAM (Random Access Memory) and ROM (Read Only Memory). The secondary memory is accessible in the form of Mass storage devices such as hard disk, memory chips, Pen drive, floppy disk storage media, CD and DVD. Primary memory is volatile in nature, while secondary memory is non volatile. The information that is stored in the primary memory cannot be retained when the power is turned off. In case of secondary memory, the information can be retrieved even if the power is turned off because the data will not be destructed until and unless the user erases it. When the data processing speed is compared between the primary and secondary memory, the primary memory is much faster than the secondary memory. In the cost perspective, the primary memory is costlier than the secondary memory devices. Because of this reasons most of the computer users install smaller primary memory and larger secondary memory. As the secondary memory is permanent, all the files and programs are stored in the secondary memory most and as the primary memory interacts very fast with the micro processor, when the computer needs to access the files that are stored in the secondary memory, then such files are first loaded into the primary memory and then accessed by the computer.


Usually the hard drives are considered secondary. The RAM (Random Access Memory) is the primary memory.


primary memory & secondary memory


To store information in memory



primary memory secondary memory cache memory


Addresses of virtual memory is found in descriptor table lies in primary memory but the content of the page is stored in secondary memory.


Intenal memory is only primary memory. The term secondary memory is used for External storage like hard disk etc.


Magnetic tape, Floppy disk and Hard disk are different types of secondary memory.


Long term memory is found on secondary storage devices.


Primary Memory is connected with the motherboard. Examples of primary memory are RAM, ROM, PROM, etc. it works very fast. Secondary Memory are those which are connected to the computer from outside. Examples of secondary memory are floppy disk, cd's, DVDs, etc.


You have to keep on remebering the memory


Examples of secondary memory are magnetic type,floppy disk,CD roms etc


"Describe different types of primary and secondary memory of a computer?


Magnetic tape, Floppy disk and Hard disk are some types of secondary memory.


yes ,ram is secondary memory.


The purpose of secondary memory is storage of data that is not immediately needed for processing by the CPU. Examples of secondary devices are hard drives and optical drives.


No, Because secondary takes more time as compared to primary. primary takes less time as compared to secondary.


Broad categories of secondary memory include magnetic, optical and flash memory. Examples are hard drives, dvds and CDs and flash disks.


1. Compared to main memory, secondary memory is slower, bigger, cheaper (per unit storage). 2. The capacity of secondary storage is between 10 to 250 GB. 3. Data stored in secondary storage devices is permanent (non volatile) in nature.


Prymary memory is volatile memory. There is have also 2 sub memory.Like RAM & ROM.Starting (OS) cold position to Starting (OS) hot position. Secondary memory is non volatile memory.(HDD)



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