lesson
Working memory and saved files differ
1 · Learn
A processor executes instructions. Main memory holds instructions and data currently in use, while secondary storage retains files for longer-term use. In a typical system, volatile RAM loses its contents when power is removed.
Saving a document writes a stored version; seeing it on screen does not prove the latest edits are saved. A backup is a separate recoverable copy, not merely a second shortcut to the same file.
2 · Worked example
I edit a document, save it and reopen the saved file to verify the change. A screenshot of the unsaved editor would not prove the file contains it.
3 · Your turn
Does increasing RAM automatically mean a document is backed up?
Check your answer
No. Working memory capacity and a separate recoverable saved copy are different things.
4 · Apply your learning
Use a sample file to compare an unsaved edit, a saved version and an approved separate copy without touching important files.
Adult guidance and safety
Use an approved private programming or authoring environment and fictional data. Do not install unknown software or enter personal credentials for these exercises. Trace first, then run and test where a suitable tool is available; these text examples do not themselves provide an executable assessment environment.
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