Hard Disk

Properties:

• Main device in computer to store data

• Has magnetic platters

• Has read/write heads for reading and writing of data
• May be 40 GB to 4 TB
  Uses:
  Stores system and application S/Ws
  Stores files and music
  Real times(robot, plant control and online) systems store data in it
  Advantages:

• Fast read/write time
• Huge storage capacity
• Very easy to update/delete files
  
  
  Disadvantages:
  
  

• Can be damaged easily
• Not portable