These are storage devices that can handle optical disks and provide tertiary storage ranging from terabytes to petabytes. The capacity of these tape libraries is more than a thousand times that of hard drives and so they are useful for storing large amounts of data. These may contain one or more tape drives, a barcode reader for the tapes and a robot to load the tapes. Tertiary storage stores a large amount of data that is handled and retrieved by machines, not humans.The different tertiary storage devices are − Tape Libraries Most of the rarely used data is archived in tertiary storage as it is even slower than primary storage. It usually has a storage capacity of 700 MB. It is already pre recorded and the data on it cannot be altered. A CD is a shiny metal disk of silver colour. This is short for compact disk - read only memory. A pen drive is quite compact and comes with various features and designs. It helps in easy transportation of data from one system to another. A memory card is available in various sizes such as 8MB, 16MB, 64MB, 128MB, 256MB etc. It can easily plug into a port and removed after its work is done. This has similar functionality to a flash drive but is in a card shape. Floppy disks are also known as floppies and diskettes. They are flexible plastic discs which can bend, coated with magnetic oxide and are covered with a plastic cover to provide protection. They are available in many sizes ranging from 1 to 14 inch diameter. They are round, flat pieces of metal covered with magnetic oxide. Hard disks are the most famously used secondary storage devices. Secondary storage contains a large amount of data permanently.The different types of secondary storage devices are − Hard Disk The data from secondary storage needs to be brought into the primary storage before the CPU can use it. Secondary or external storage is not directly accessible by the CPU. This is a small memory that is also very fast. However, it is also quite expensive.Ĭache is used to store data and instructions that are frequently required by the CPU so it doesn't have to search them in the main memory. RAM is the major form of primary memory as it is quite fast. the data in RAM is lost when the power is switched off.
Since ROM is unchangeable memory, it is used by data and programs that are frequently required and seldom changed, like the system boot program. This memory cannot be changed, it can only be read as required. Primary storage is also known as the main memory and is the memory directly accessible by the CPU. Details about these storage types and devices used in them are as follows − Primary Storage It is traditionally divided into primary storage, secondary storage and tertiary storage. You agree that you are solely responsible for any breach of your obligations under this Policy & Agreement and for the consequences (including any loss or damage which may suffer) of any such breach.Computer Storage contains many computer components that are used to store data. You agree that you will not duplicate, reproduce, copy, sell, trade or resell the Website for any purpose. You agree that you will not engage in any activity that disrupts or otherwise interferes with the Website (or the servers and networks which are connected to the Website). You specifically agree not to access or attempt to access the Website, or any portion thereof, through any automated means, including but not limited to the use of scripts or web crawlers. You agree that you will not access or attempt to access the Website other than through the interface that is provided by, unless you have specifically been permitted to do so in a separate written agreement signed by an authorized representative of.
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#Different types of storage devices code
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