School ICT Self Study
📝 View in Your Language:

Advanced Memory and Storage Concepts

0

Examines PC memory system to identify different types of memory and their main characteristics

  1. How does the physical arrangement of data differ between SRAM and flash memory?

  2. How does the programmability of PROM differ from EPROM?

  3. What are the different levels of cache memory, and how do they function?

  4. How has secondary storage evolved from magnetic tapes to SSDs?

  5. How do access time, cost, and capacity influence memory performance in a computer system?

 

Spread the love
Ruwan Suraweera Changed status to publish June 21, 2025
0

Answers and Descriptions:

  1. Answer: SRAM uses transistors for bit storage, while flash memory uses floating-gate transistors for high-density storage.
    Description: SRAM’s transistor-based design ensures fast access for cache, while flash memory’s dense structure supports larger, non-volatile storage for devices like SSDs.

  2. Answer: PROM is programmable once, while EPROM can be erased and reprogrammed using UV light.
    Description: PROM’s one-time programming suits fixed applications like firmware, while EPROM’s reusability allows updates, used in development environments for testing.

  3. Answer: L1, L2, and L3 caches store frequently accessed data, with L1 being fastest and closest to the CPU.
    Description: L1 is smallest and fastest, L2 is larger and slower, and L3 is shared among cores, optimizing data access speed for efficient CPU performance.

  4. Answer: Magnetic tapes offered sequential access, while SSDs use flash memory for faster, random access.
    Description: SSDs provide significant speed and reliability improvements over magnetic tapes, transforming storage for modern applications like databases and gaming.

  5. Answer: Faster access time improves performance but increases cost, while higher capacity reduces cost per MB but slows access.
    Description: Balancing these metrics in the memory hierarchy ensures optimal performance, with fast, costly memory for critical tasks and slower, cheaper memory for bulk storage.

Spread the love
Ruwan Suraweera Changed status to publish June 21, 2025
Write your answer.
Select Language:
Select Font Size: