brand:	Nintendo
model:	Donkey Kong
year:	unknown
specs:	dual-screen handheld game 2 levels of difficulty time & alarm
extra:	My first computer ever! I played and played for hours, untill the batteries were drained. Then I wacked a solar-powered pocket calculator (one of those that you get for free), and used the solar-cell for power. Since you needed light anyway to play the game, this solution was perfect. This must have been the first solar-power handheld game ever.