So Notepad is well worth meeting. Notepad opens with a new blank document ready for your typing. Many applications behave this way. Others offer you the option first of opening an existing document. The cursor is the shape that shows where the text you type will go.
Different programs use somewhat different shapes.
A vertical bar of some type is the most common. You can only undo the last action in Notepad. Start a program from Explorer Right click on the My Computer icon on the Desktop. From the popup menu choose Explore . This will open an Explorer window.