RStudio is tailor made for R. At the top of the Rstudio window we have the toolbar with various buttons for creating new files, configuring settings, and adjusting Rstudio for your purposes.
Beyond the toolbar, Rstudio has by default 4 panes that we will work in:
While these panes can be adjusted for your particular workflow, this setup is the most standard way of using Rstudio and is how we will use it throughout this course.
You may also notice that my Rstudio has a different color scheme than yours. That can be changed by going to Tools> Global Options> Appearance and changing the editor theme. I use Idle fingers.