...

1. 3DO
2. Apple Pippin
3. Atari 2600
4. Atari 5200
5. Atari 7800
6. Atari Jaguar
7. Casio PV-1000
8. Cassette Vision
9. CD-i
10. ColecoVision
11. Dreamcast
12. Fairchild Channel F
13. GameCube

14. Interton VC4000

15. Intellivision
16. Magnavox Odyssey
17. Master System
18. Mega CD
19. Mega Drive
20. Neo Geo AES
21. Neo Geo CD
22. Nintendo 64
23. Nintendo Entertainment System
24. PC-FX
25. Phillips Videopac (Odyssey²)
26. Playstation 1
27. Playstation 2
28. Playstation 3
29. SG-1000
30. Sega 32X
31. Sega Pico
32. Sega Saturn 
33. Super A' can
34. Super Cassette Vision
35. Super Grafx
36. Super Nintendo Entertainment System
37. Turbografx-16 (PC Engine)
38. Vectrex
39. Virtual Boy
40. Wii
41. Wii U
42. Xbox
43. Xbox 360

...

1. Android
2. Bada
3. IOS
4. Palm
5. Symbian
   
   1. S60 1st
   2. S60 2nd
   3. S60 3rd
   4. S60 5th
   5. Symbian^3
   6. Symbian Anna
   7. Nokia Belle
   8. S80
   9. S90
   10. UIQ 2x
   11. UIQ 3x
6. Windows Mobile
7. Z88

Layer 1.6: Tablets like iPad

...

Layer 1.7: Operating Systems like DOS / Windows / Linux

1. Dos (IBM?)
2. Linux
3. Windows
   
   1. Windows 3.1
   2. Windows 95
   3. Windows 98
   4. Windows 98
   5. Windows NT
   6. Windows 2000
   7. Windows ME
   8. Windows XP
   9. Windows Vista
   10. Windows 7
   11. Windows 8

...