5. CHAPTER. Input and Output. Objectives:. To understand that input and output devices are essentially translators . To understand that input devices translate symbols that people understand, into symbols that computers can process.
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Input and Output
Trackball (roller ball) – control the pointer by rotating a ball with your thumb
Touch surfaces – control the pointer by moving and tapping your finger on the surface of a pad
Point stick - controls the pointer by directing the stick with your finger. Located in the middle of the keyboard.
INPUT PROCESSING INFORMATION