For those of you who may be confused about the difference between “server-side” and “client-side” — or the importance of that distinction — let me take a moment to explore this issue. While the line between “client” and “server” has blurred over the years, the Internet is still a client/server model. Your computer is the “client”, and somewhere in the nebulous, vast Internet, is a “server”. This server is sending information over the Internet to clients all over the world — one of which is your computer. Both client and servers are computers. Servers are typically intimidating looking boxes in giant racks in giant, air-conditioned warehouses, and clients are…well, desktop computers, laptops, phones — even watches now. The important point is that clients and servers — for all the differences in their physical appearance — are just computers. And one common property of computers is that they run programs.