Scroll bar

Use the scroll bar to see items that are out of view.  This scroll bar is not available because the list to the left contains no items above or below the list’s borders.

Scroll bar

To scroll a little at a time, press one of the scroll arrows.  To scroll by the windowful, click in the gray bar.  To scroll to another part of the window, drag the scroll box.

Size box

To change the height and width of the window, drag the size box.

This is the largest chunk of memory available to open an application program.  If an application requires more than this amount of memory, you cannot open it.

This is the total amount of RAM (random-access memory) available to this computer. It can include memory on chips installed in the computer, and virtual memory (space on a hard disk used as RAM).

This is the version number of the System file your Macintosh is now using.