secondery storage

secondery storage

1. optical storage

   • example Blu-ray discs.
   • example CDs, DVDs
   • disadvantages The biggest disadvantage of optical storage is disk capacity. Currently topping out at 27 GB for a 12-centimeter
   • advantages Low cost per bit of storage.

2. it is non-volitile storage.it is needed in a computer systemto stor your programs operating syatems and files

   • non-volitile means that the data is not deleted when the computer system has no power connected to it

3. magnetic storage

   • example Commonly used devices that use magnetic storage include magnetic tape, floppy disks and hard-disk drives.
   • example Floppy diskette. Hard drive. Magnetic strip. SuperDisk. Tape cassette. Zip diskette.
   • disadvanteges Just like other magnetic tape technologies, it had several disadvantages as well. These include durability;
   • high caoasity (srores lots of data)

4. solid state (flash) storage

   • disadvantage Price: The biggest disadvantage of a solid state drive is the cost. SSD costs more than a conventional hard disk drive
   • example Solid State Hard Drive; Memory stick; Flash memory; Micro flash memory
   • example A simple USB flash drive (or thumb drive) is an example of solid-state drive technology.
   • advantage they can be super small and compact