Like a typewriter, a keyboard has number, letter, and punctuation keys. Some keys, like the Ctrl key, are used only in conjunction with other keys. To use Ctrl, hold it down and then press the other key.
Most tasks are easier to do using the mouse than the keyboard.
To move the mouse, just slide it along any hard surface, such as your desktop. You will see the p ointer move around the screen. When the pointer is positioned on the item you want to select, press one of the mouse buttons. To drag the mouse, hold down one of the mouse buttons while you move it along a hard surface. Each lesson has a similar set of summaries.