PAN, WAN, MAN, LAN, CAN - what is up with all these rhyming words? As much as I would love to have a walk down memory lane and make a right at Kindergarten Avenue, these are actual names - well, acronyms, - for the types of networks that exist today. These networks are like nesting dolls. PANs can be found in LANs, LANs make up our WANs, and there is more in between. Let's take a closer look at these networking nesting dolls. Personal Area Networks (PANs) Have you ever grown frustrated at how your Bluetooth headphones seem to take forever to pair to your phone? Do you use a wired mouse or a wireless mouse with your desktop? Do you use your smartphone for payment by "tapping" it? These are examples of personal area networks. A personal area network connects devices close in range, from a few centimeters to a few meters in range. These types of networks can be wired or wireless. A wired PAN may be a computer connected to a printer by a USB cable or Ethernet cable. A wire...