What is Photoshop scratch disk?

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Tags

1. #default
2. #perform
3. #disks
4. #which
5. #system
6. #partition
7. #operating
8. #primary
9. #drive
10. #about
11. #enough
12. #operation
13. #memory
14. #photoshop
15. #elements
16. #scratch
17. #installed