KwickClips Computer Systems · 40 sec · free
Why can ROM not hold your files?
Short answer. It cannot be changed to save your files.
What keeps files after power off?
Secondary storage.
RAM is not enough
| Volatile: lost at power off |
| Small: only a few GB |
| Costly per GB |
Remember
| Storage keeps files safely |
Why not store all your files in RAM? RAM has three problems. It is volatile. It is small. It costs a lot per GB. So we use storage too. Remember. Storage keeps files after power off.
This clip is from the full lesson: Secondary Storage: Magnetic, Optical, Solid State and Cloud — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 9 Computer Applications (165), CBSE Class 9 Computer Applications (165), CBSE Class 11 Information Technology (802)
More KwickClips from this lesson
Which is cheapest for large backups?44 sec
What is the cloud, really?41 sec
What is virtual memory?38 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.