This is just dumb clickbait. "Needs" in the title is not correct - some guy just took a picture of the bios screen that says that the computer has a Core i5 and 8G ram. Your average IPad has higher specs than that, and for these "fancy" elevator touch screens it seems like the cheapest option would just to use an existing reasonably spec'ed device. An 8G ram stick is still on the order of 50 bucks - does the author really think that's where the elevator company should be optimizing their spend?