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The following screenshot is the initial user interface of RStudio where you will see four major components:

Let's take a look at the following four major components shown in the preceding screenshot:

• In the upper-left section is the R script writing section where you will usually write R code to solve your data analytics, data management, or data visualization problems.
• In the lower-left section is the R console where you will be able to see immediate output and error messages along the line of code that has been run already.
• The upper-right section contains the history of R sessions and the current global environment. The environment section displays all current active R objects, their type, and other information.
• The lower-right corner contains several subcomponents, for example, the Help documentation window, graphical output (the Plots tab), the Files tab showing the list of files and folders in the selected directory, and also the list of R packages (the Packages tab).