Compaq Presario 1600-XL145 Notebook
(250-0334/8200)            Touchpad                    Faxback Doc. # 59311

The Presario 1600 XL145 computer incorporates a built-in, TouchPad pointing 
device, with pick buttons located just below the spacebar. The TouchPad is 
a PS2 device that is fully compatible with the optional Microsoft PS2 
mouse. If an external pointing device is connected, the integrated pointing 
device is automatically disabled and the external pointing devices is 
activated. 

The TouchPad, a pointing device for personal computers, detects the 
position of a finger over a touch-sensitive area. To move the cursor, the 
user lightly slides a finger over the smooth sensor area. To . click. , the 
user gently taps on the surface.

The TouchPad is a capacitive sensor-- the finger is detected by measuring 
its effect on an array of capacitive lines integrated into the PC board. 
The pad senses both the finger. s position and its contact area (X, Y, and 
Z). The area of contact is a measure of applied pressure. 

The TouchPad communicates with the host via a standard PS/2 mouse or 
trackball interface. 

This TouchPad is fully compatible with the standard Microsoft mouse driver.

(RDS 04/10/2000)