There are days when your connection breaks, not because the internet is down, but because your computer is confused. Wrong IP, no IP, stuck on an old network, or just refusing to pick up a new one.

Windows 1.0 officially released to the public 40 years ago today (November 20), and despite its age, still has some common similarities with what users can expect from the operating system today.

Think you know how Wi-Fi works? These overlooked facts about the networks we rely on every day may change how you see your signal bars.