Q.Distinguish between primary memory and secondary storage.

Both hold data, but one is the fast working memory the CPU uses right now, while the other is the large, permanent store used to keep data for the future. …

Primary memory and secondary storage both hold data but serve different purposes and differ across several points.

Purpose: Primary memory holds the data and instructions the CPU is currently working on; secondary storage keeps data and programs permanently for future use.

Access speed: Primary memory is very fast and directly accessible by the CPU; secondary storage is slower to access.

Volatility: The main type of primary memory, RAM, is volatile (its contents are lost when power is off); secondary storage is non-volatile (its contents remain without power).

Capacity and cost: Primary memory is of relatively limited capacity and is more costly per unit; secondary storage offers much larger capacity at a lower cost per unit. …

Students sometimes treat 'memory' and 'storage' as identical — the key differences are speed, volatility, and capacity: primary memory is fast working memory use …