| A | B |
| input device | allows you to communicate with your computer |
| bar code reader | a wand or screen that uses a light source to read characters |
| light pen | used with the computer screen to make selections |
| scanner | used to place pictures or documentsinto the computer |
| touch screen | use your fingers to make selections |
| pointing stick | used on portable computers |
| microphone | used to record sounds |
| touch pad | used in place of a mouse (pressure/motion sensitive) |
| trackball | upside down mouse |
| keyboard | allows you to type |
| mouse | hand-held rolling device that allows you to point, click, and drag |