Vertices
Besides that, you have two important information about the scene. One
is the current memory used by Blender to edit the project. You can keep
an eye on this value in systems that have limited memory available.
Another option that can make a difference later during rendering is the
VRAM amount. If you have a dedicated graphics card in your computer,
it has a total amount of memory. To render a scene with GPU
acceleration, Blender needs to load the scene to that memory.
The scene must fit inside the memory for processing, and the VRAM
information helps you keep track of that limit. If it doesn't fit, you must
render the scene with CPU only, which is slower in most cases.
You only see the VRAM value in Blender if you have a dedicated
graphics card and a driver that gives access to that information.
What is next?
Now that you have a solid understanding of the basic aspects of
Blender, it is time practice. Use the default starting scene and try to
move around in the 3D Viewport. By triggering keyboard shortcuts or
navigation icons, you start memorizing those options.
With practice and a few minutes of work, it will soon become something
you do without thinking about it. For instance, if you have to set the 3D
Viewport to the top orthographic view, your hand will go to the Numpad 7
and Numpad 5 keys.