A touchscreen is an input device that allows the user to interact with the computer by touching the display screen. The first attempt at a handheld game console with touchscreen controls was Sega's intended successor to the Game Gear, though the device was ultimately shelved and never released due to the high cost of touchscreen technology in the early 1990s.[9] The first released console to use a touchscreen was the Tiger game.com in 1997. Nintendo popularized it for use in video games with the Nintendo DS and Nintendo 3DS; other systems including the Tapwave Zodiac as well as Smartphones and the vast majority of PDAs have also included this feature.