Storage devices.

Storage devices.

1. Uses of

   • Internal HDD
     • * Store operating system and working data files.
     • * Storing applications that need fast storage data.
     • Servers for computer networks.
   • Portable HDD
     • Back up of systems to prevent loss of data.
     • Transfer data between computers.
   • Flash memory card.
     • Stores photos on digital cameras.
     • Mobile phone memory cards.
     • Stores music.
   • Magnetic tapes.
     • Back up media.
     • Long term achieving data.
   • CD- roms/ DVD- roms
     • Stores music files/ software computers and games.
     • Large storage, storage films and computer data.
   • Memory sticks.
     • Security devices to prevent software piracy.
     • Transporting file between computers.

2. Advantages

   • CD-roms/ DVD- roms
     • Less expensive than hard disk drive systems.
   • Internal HDD
     • Very fast data transfer, rate and fast acces time to data.
   • Portable HDD
     • The data acces time and data transfer rate is very fast.
   • Flash memory card
     • Very robust memories and compact but easily to remove.
   • Magnetic tapes.
     • Less expensive, very robust technology and large storage capacity.
   • Memory Sticks
     • Very portable media, not affected by magnetcs field and doesn´t need additional software.

3. Disadvantages

   • CD- roms/ DVD roms
     • Data tranfer rate and data acces time is slower than for hard disks.
   • Internal HDD
     • Can be easily damage, if the correct shot down procedure is not carry out causing loss of data.

4. Portable HDD

   • Can be easily damage, if dropped or subjected to a strong magnetic field.

5. Flas memory card

   • Has lower storage capacity than hard disks.

6. Magnetic tape.

   • Very slow data acces times and when updating, another tape is needing.

7. Memory sticks

   • The user needs to be very careful when removing a memory stick from a computer.