FIGURE 3.1 The GNOME Shell desktop.
From the desktop, you can do the following:
Click Activities at the upper left to search the computer for installed
programs.
Select a program from the Dash, which is the vertical tool bar on the left,
starting just below the Activities link (see Figure 3.2). To add or remove
an item from the Dash, right-click while hovering over an icon and select
Add or Remove from the pop-up menu.
Click the Show Applications icon at the bottom left (which looks like a
square made of dots) to reveal an icon-rich array of installed programs
(see Figure 3.3). Click any icon in this list to open the program.
Click the power icon at the upper right to reveal a list of networking,
settings, screen lock, and shutdown options (see Figure 3.4).At the top center of the desktop you see a day and time that you can click to
reveal a calendar. Any notifications you have from Ubuntu are also displayed
and available here.