One Computer, Console and Handheld from Each Decade

I have had the privilege of owning at least one console, handheld and computer system from each of the five decades from the 1970s to the 2010s (with one exception).  These are just the current systems I have or had within the past two years or so :

Video Game Consoles :
1970s - 2600
1980s - 5200, NES, Genesis (and SMS by virtue of a Power Base Converter).
1990s - SNES, PSX, N64
2000s - Gamecube, Wii, PS3
2010s - Wii U

Computers :
1970s - Atari 800
1980s - IBM PC 5150, IBM PCjr., Commodore 64, Tandy 1000SX, 1000TX & 1000TL
1990s - Custom Built 486DX2/66
2000s - Custom Built Pentium III 600E (case is from the 21st century)
2010s - Custom Built Intel Core i7-870, Custom Built Core i7-4770K

Handhelds :
1970s - None (I have never owned a Microvision)
1980s - Gameboy
1990s - Gameboy Pocket
2000s - GBA, GBA SP, DSi XL
2010s - 3DS

If I wanted to include every system I have ever owned during my lifetime, the list would expand considerably.  I do not have the space nor the funds to acquire arcade machines.  But if I had to choose one game from each decade, it would be :

1970s - Space Invaders
1980s - Tempest
1990s - Teenage Mutant Ninja Turtles : Turtles in Time
2000s - Class of 1981 / 20 Year Reunion Ms. Pac-Man/Galaga (and Pac-Man, yes this is cheating, but its my list.) :p
2010s - Mario Kart Arcade GP DX