Questions: L1 is also called , and is made up of . primary cache, DRAM secondary cache, SRAM primary cache, SRAM secondary cache, DRAM ROMs retain data when the power is off power is on system is down all of them

Question 1: L1 is also called $\qquad$ , and is made up of $\qquad$ .

The answer is the third one: primary cache, SRAM.

Explanation:

• Primary cache, SRAM: L1 cache is known as the primary cache and is typically made up of SRAM (Static Random Access Memory) because it is faster and more expensive than DRAM.
• Secondary cache, SRAM: This refers to L2 cache, not L1.
• Primary cache, DRAM: DRAM is not used for L1 cache due to its slower speed compared to SRAM.
• Secondary cache, DRAM: This is incorrect for L1 cache.

Question 2: ROMs retain data when the $\qquad$

The answer is: power is off.

Explanation:

• Power is off: ROM (Read-Only Memory) is non-volatile, meaning it retains data even when the power is off.
• Power is on: While ROM retains data when the power is on, the key feature is its ability to retain data when the power is off.
• System is down: This is similar to power being off, but the specific term used is "power is off."
• All of them: This is incorrect because the key feature of ROM is retaining data when the power is off, not necessarily in all situations listed.

In summary, L1 cache is the primary cache made up of SRAM, and ROM retains data when the power is off.