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Storage Devices


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Presentation about storage devices and their advantages and disadvantages(pictures included)

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Storage Devices

  1. 1. CD DVD Manvel
  2. 2. <ul><li>Definition : CD Read Only Memory/DVD Read Only Memory </li></ul><ul><li>This means when we buy it, it has some data already installed on it and we can’t remove that data. We can read it, but can’t save on it </li></ul><ul><li>Examples are: Musical CD, Film DVD </li></ul><ul><li>Advantage </li></ul><ul><li>It has a lot of memory on it </li></ul><ul><li>Disadvantage </li></ul><ul><li>A data can be installed on it one time only </li></ul>Manvel
  3. 3. <ul><li>An empty CD/DVD disk </li></ul><ul><li>Advantages </li></ul><ul><li>It is small and portable. </li></ul><ul><li>It is very cheap to produce. </li></ul><ul><li>Fairly fast to access data. </li></ul><ul><li>Disadvantages </li></ul><ul><li>Data can be stored 1 time only. </li></ul><ul><li>It is easy to break or scratched. </li></ul>Manvel
  4. 4. <ul><li>Advantages </li></ul><ul><li>It has enough memory in it. </li></ul><ul><li>The data can be stored as much time as you want. </li></ul><ul><li>It is small and portable. </li></ul><ul><li>Fairly fast to access data. </li></ul><ul><li>Disadvantages </li></ul><ul><li>DVDs do not work in CD drives. </li></ul><ul><li>There is no single standard of DVD. </li></ul><ul><li>They can be easily damaged by breaking or scratching. </li></ul>Manvel
  5. 5. <ul><li>DVD Random-Access Memory </li></ul><ul><li>Advantages </li></ul><ul><li>Long life (about 30 years without damaging). </li></ul><ul><li>Can be rewritten about 100000 times. </li></ul><ul><li>Has write-protect tabs to prevent accidental deletion when used in a cartridge. </li></ul><ul><li>Disadvantages </li></ul><ul><li>Less compatibility than DVD+RW and DVD-RW, despite predating both formats (as noted above). </li></ul><ul><li>DVD-RAM media is more expensive than other types of DVD. </li></ul>Manvel
  6. 6. <ul><li>High Definition/Density DVD </li></ul><ul><li>Advantages </li></ul><ul><li>Cheap considering the picture quality produced by HD-DVD and the list of movie studios. </li></ul><ul><li>Sounds good. </li></ul><ul><li>Backwards compatibility included. </li></ul><ul><li>Disadvantages </li></ul><ul><li>Xbox 360 version features no HDMI. </li></ul><ul><li>Films are not cheap. </li></ul>Manvel
  7. 7. <ul><li>Advantages </li></ul><ul><li>Huge storage capacity. </li></ul><ul><li>Backwards compatibility. </li></ul><ul><li>Keep on burning. </li></ul><ul><li>Quality support. </li></ul><ul><li>Disadvantages </li></ul><ul><li>High cost. </li></ul>Manvel
  8. 8. <ul><li>Advantages </li></ul><ul><li>Smallest form of memory, used as removable storage. </li></ul><ul><li>More robust than other forms of storage. </li></ul><ul><li>Can be easily written to and updated. </li></ul><ul><li>Small and comfortable. </li></ul><ul><li>Disadvantages </li></ul><ul><li>More expensive than other forms. </li></ul><ul><li>Easy to lost. </li></ul>Manvel
  9. 9. <ul><li>Advantages </li></ul><ul><li>Used to transport files and backup data from computer to computer. </li></ul><ul><li>Can store up to a lot of Gigabytes. </li></ul><ul><li>Disadvantages </li></ul><ul><li>Can be easily lost. </li></ul>Manvel
  10. 10. <ul><li>Advantages </li></ul><ul><li>They are compact and portable. </li></ul><ul><li>They hold a lot of data. </li></ul><ul><li>They are reliable. </li></ul><ul><li>Disadvantages </li></ul><ul><li>At the moment, the cost per megabyte of storage is more expensive than floppy disks, CDs or DVDs. </li></ul><ul><li>They can be easily lost. </li></ul><ul><li>The metal part which is inserted into the USB port can be snapped off if they are handled roughly . </li></ul>Manvel