So, conceptually if you've ever wondered why you get access in all of your functions to global variables that's because they're not down here, they're at the very top of RAM and any function can access that RAM way up there, but for now the interesting player in the story is this thing called the heap.

所以，如果你想知道为什么全局变量能在,所有的函数中使用,那是因为它们不在这下面，而是在内存的顶端,那样任意函数都可以在内存中使用它们，现在，这里面一个有用的角色是,叫做堆的东西。

哈佛公开课 - 计算机科学课程节选

For the money, too, it has an IPS panel and can be configured with up to a Core i7 processor, 8GB of RAM and a Blu-ray player. (Hey, bonus points for even being configurable.) Like many other all-in-ones (including the particular Vizio configuration we tested) it will only be available with integrated Intel HD 4000 graphics.

ENGADGET: Vizio All-in-One review (24-inch): a TV maker tries its hand at desktops

The player supports several types of discs including DVD-Audio, DVD-RAM, DVD-R, CD-R and CD-RW. There's also an SD Memory card slot, so you can look at photos you may have saved from a digital camera.

FORBES: Magazine Article