Presidents' Day is still a week away, but Amazon already has lots of savings on top tech. Here's our favorites so far.

An unopened first-gen iPhone from 2007 recently sold for over $190,000 at auction, highlighting the growing value of vintage Apple products.

The key idea is to grow both the generator and discriminator progressively: starting from a low resolution, we add new layers that model increasingly fine details as training progresses ... Finally, ...