Computer Science / Unit 6 CS 0296 short lesson, about 20 seconds
Primary and Secondary Memory
Captions available
The idea
Primary memory is volatile and loses data at power loss; secondary memory is nonvolatile — hard disk drives and solid-state drives — retaining data through failures and providing durability.
In practice
A school's records survive the outage on drives; the open spreadsheets did not.
Where people slip
The two contracts video 0260 promised, now both named.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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