KwickClips Computer Systems · 40 sec · free
What does delete really do?
Short answer. It hides the file and frees the space.
When is the data truly gone?
When new data overwrites it.
Deleting a file
| Entry removed from index |
| Space marked as free |
| Data stays till overwritten |
Remember
| Delete hides, it does not erase |
You emptied the Recycle Bin. Is the file gone? Not really. Only its entry is removed. The space is marked free. The data stays until overwritten. Remember. Delete hides the file. It does not erase it.
This clip is from the full lesson: Units of Memory, Data Deletion and Recovery — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083), CBSE Class 11 Informatics Practices (065), GSEB Std 9 Computer Studies
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