Computer Science for IGCSE & O level - Hardware (Section 25 - No. 47)
What is the purpose of the 'refresh' process in DRAM?
To store more data.
To prevent data loss by re-charging the capacitors.
To speed up the access time.
To rewrite the data to a different location.
Explication
DRAM capacitors lose their charge over time; therefore, the refresh process periodically restores the charge.