Section: Core

6) Every 16 milliseconds DRAM must be?

1. Cooled
   
2. Reloaded
   
3. Cached
   
4. Refreshed
   

DRAM, or Dynamic Random Access Memory, was manufactured with capacitors that stored electrical power, but also would fade over time. They had to be constantly "refreshed", and as a result would take longer to process data. Remember, DRAM needs to be refreshed constantly or data will disappear.

Exam Objective: 1.3 Compare and contrast RAM types and features.