Question:
The order of memory increasing access speed:
The order of memory increasing access speed:
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Memory hierarchy from slowest to fastest:
Hard Disk \(\rightarrow\) RAM \(\rightarrow\) Cache \(\rightarrow\) CPU Registers.
Updated On: Jun 11, 2026
- RAM \(\to\) HD \(\to\) Cache \(\to\) CPU Register
- Cache \(\to\) RAM \(\to\) CPU Register \(\to\) HD
- HD \(\to\) Cache \(\to\) RAM \(\to\) CPU Register
- HD \(\to\) RAM \(\to\) Cache \(\to\) CPU Register
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The Correct Option is D
Solution and Explanation
Concept:
Memory hierarchy is organized according to speed, cost and capacity.
Generally:
\[
\text{Faster Memory}
\Rightarrow
\text{Higher Cost}
\Rightarrow
\text{Smaller Capacity}
\]
Step 1: List memory components from slowest to fastest.
Hard Disk (HD) is slowest. RAM is faster than hard disk. Cache is faster than RAM. CPU Registers are the fastest storage locations available. Thus \[ HD < RAM < Cache < CPU\ Register \]
Step 2: Arrange according to increasing access speed.
Increasing speed means moving from slowest to fastest. Therefore, \[ HD \rightarrow RAM \rightarrow Cache \rightarrow CPU\ Register \]
Step 3: Match with the options.
This corresponds exactly to Option (D). Hence \[ \boxed{\text{Answer (D)}} \]
Step 1: List memory components from slowest to fastest.
Hard Disk (HD) is slowest. RAM is faster than hard disk. Cache is faster than RAM. CPU Registers are the fastest storage locations available. Thus \[ HD < RAM < Cache < CPU\ Register \]
Step 2: Arrange according to increasing access speed.
Increasing speed means moving from slowest to fastest. Therefore, \[ HD \rightarrow RAM \rightarrow Cache \rightarrow CPU\ Register \]
Step 3: Match with the options.
This corresponds exactly to Option (D). Hence \[ \boxed{\text{Answer (D)}} \]
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