Wiggle the mouse if the screen is blank. Wait until two windows labeled xterm appear, this may happen quickly or take a while. When this message does appear, you should read it as it usually contains important announcements. The two rectangles labeled xterm are called windows . The row of small rectangles containing pictures in the top left position of the screen is a menubar which contains some icons .
Icons represent windows that are temporarily hidden.
The green with black dots covering most of the screen is called the background . Move the mouse to any area of the background and try clicking the three mouse buttons each at a different time. Each button brings up a different menu of applications. Do not try any of these now , you can try them on your own later. Most windows have title bars across the top of the window.