Arrange the following from fastest to slowest in speed.
A. DRAM
B. SRAM
C. CPU Registers
D. Magnetic tapes
E. Hard disk
Choose the correct answer from the options given below :
1.A, B, C, D, E
2.C, B, A, E, D ✓ Correct
3.C, D, B, A, E
4.B, C, D, A, E
Solution
The correct answer is C, B, A, E, D
Key Points
To arrange the given memory and storage devices from fastest to slowest in speed, let's understand their characteristics:
- CPU Registers (C)
- CPU Registers are the fastest memory in a computer system. They are used to quickly store and retrieve data that the CPU is currently processing.
- SRAM (B)
- Static Random-Access Memory (SRAM) is faster than DRAM and is used for cache memory in the CPU.
- DRAM (A)
- Dynamic Random-Access Memory (DRAM) is slower than SRAM but is used for the main memory in most computers due to its higher density and lower cost.
- Hard Disk (E)
- Hard disks are much slower compared to RAM but provide a large amount of non-volatile storage.
- Magnetic Tapes (D)
- Magnetic tapes are the slowest among the given options. They are used for archival storage and backup due to their high capacity and low cost.
So, the correct order is: C, B, A, E, D
