Week 7: Clear Understanding of the OS

I use the computer for work and generally understand the basic functions needed to create, store, zip and retrieve data. I didn't understand the order the operating system followed or how RAM and flash memory worked. I always believed you needed more RAM to operate bigger programs and had installed additional RAM in my desktop computer. Now I understand a little more of why that was important.
I was surprised CONTROL F was not mentioned when discussing swapping names in a document. I use that function all the time and its great. I was also surprised that WinRAR was not mentioned when discussing zipping folders. I had always thought WinRAR was able to handle more file extensions and be cheaper. I know WinZip became much more popular because of their relationship with Microsoft, but I would have thought WinRAR deserved at least a passing mention.