Installing a Belkin N150 wireless network adapter on Ubuntu 14.04 LTS

I'm a longtime Windows user who also has some experience with Linux. This week, I'm taking the plunge and configuring a desktop system with Ubuntu that I plan to use daily for software development and management tasks. My first challenge was getting connected to the network. I purchased a Belkin N150 wireless network adapter. It came with a driver installation CD for Windows, but my computer has neither Windows nor a CD drive! Luckily, I found some good instructions thanks to theharrylucas. I'll just add a couple of points here:

• The instructions are from 2011, so -- like most of the other info I found on this topic -- they pertain to older versions of Ubuntu. However, they worked fine for 14.04.
• The instructions refer to the device ID 050d:935a. My device ID is slightly different, 050d:945a. Nonetheless, the instructions worked as is.