1. A. Frank File Organization Internal/External Memory Tecnologies

2. 2 A. Frank Memory Hierarchy Technologies

3. 3 A. Frank Memory Clusters InternalExternalElectronic Disks 3 Memory Hierarchies/Clusters

4. 4 A. Frank Internal Memory CoreOthersMOS RAM/ROM Internal Memory Cluster

5. 5 A. Frank Core Memory (1)

6. 6 A. Frank Core Memory (2)

7. 7 A. Frank Core Memory (3)

8. 8 A. Frank Core Memory (4)

9. 9 A. Frank Core Memory (5)

10. 10 A. Frank ROM/RAM Semiconductor Chips

11. 11 A. Frank Electronic Disks EBAMMBMCCD Electronic Disks Cluster

12. 12 A. Frank Charge Coupled Devices (CCD)

13. 13 A. Frank Magnetic Bubble Memory (MBM)

14. 14 A. Frank Magnetic Technologies DrumsDisksTapes External Memory Cluster

15. 15 A. Frank Structure of a Drum

16. 16 A. Frank Fixed-Head Drum Storage

17. 17 A. Frank Tapes Tape ReelsFast TapesCassettes Magnetic Tapes

18. 18 A. Frank Tape Reels

19. 19 A. Frank Tape Drive Layout

20. 20 A. Frank Tape Drives

21. 21 A. Frank Tapes Storage

22. 22 A. Frank Cassettes

23. 23 A. Frank Fast Tapes ExabyteDLTDAT Fast Tapes

24. 24 A. Frank Examples of Fast Tapes

25. 25 A. Frank Disks Diskettes Moving-headFixed-head Magnetic Disks Disk Pack

26. 26 A. Frank Diskettes 8 inch3 ½ inch5 ¼ inch Diskettes

27. 27 A. Frank Diskettes Layout

28. 28 A. Frank Diskette Drives

29. 29 A. Frank Diskette Terms

30. 30 A. Frank Hard Disk Drives Evolution