Memory, Storage Devices & Media | (I)GCSE Computer Science Notes

Notes on the following:

• The difference between: primary, secondary and off-line storage with
  examples of each, such as:
  Primary: Read Only Memory (ROM) and Random Access Memory (RAM)
  Secondary: hard disk drive (HDD) and Solid State Drive (SSD); off-line: Digital Versatile Disc (DVD), Compact Disc (CD), Blu-ray disc, USB flash memory and removable HDD

• The principles of operation of a range of types of storage device and media including magnetic, optical and solid state

• How these principles are applied to currently available storage solutions, such as SSDs, HDDs, USB, flash memory, DVDs, CDs and Blu-ray discs

• Calculating the storage requirement of a file

• Advantages and disadvantages of different methods of storing music / movie files

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