the need for secondary storage

• What types of storage do computer systems need to operate?

  Primary and secondary storage
• Why are both primary and secondary storage important for a computer system?

  They play a crucial role in operation
• What are the key characteristics of secondary storage?

  • Non-volatile
  • Large capacity
• What does it mean for secondary storage to be non-volatile?

  It retains data without power
• What is a significant advantage of secondary storage regarding capacity?

  It has a large capacity
• Why does a computer need secondary storage?

  For long-term storage of unused programs and data
• Why is secondary storage necessary given the characteristics of ROM and RAM?

  ROM is read-only and RAM is volatile
• What does secondary storage do when the computer is turned off?

  Holds programs and data (non-volatile)
• How does the performance of secondary storage compare to primary storage?

  Slower than primary storage but has higher capacity
• What are the characteristics of secondary storage?

  • Capacity: Maximum data storage amount
  • Speed: Data read/write speed
  • Cost: Expense of the storage device
  • Portability: Ease of movement and physical size
  • Durability: Robustness of the storage
  • Reliability: Consistent performance probability
• What does capacity refer to in secondary storage?

  The maximum amount of data that can be stored
• What does speed refer to in secondary storage?

  How fast data can be read and written
• What does cost refer to in secondary storage?

  The price of the storage device
• What does portability refer to in secondary storage?

  Ease of movement and physical size
• What does durability refer to in secondary storage?

  How robust the storage is
• What does reliability refer to in secondary storage?

  Probability of consistent performance