Texas Instruments 51X - Manual (Page 14)

1.4.2 Touchpad Pointing Device
All members of the Extensa family feature a built-in touchpad pointing
device located near the center of the keyboard palmrest. With light pressure,
the cursor can quickly be positioned to the desired point; a quick double tap
on the touchpad and you have selected an object. Two select buttons
(switches) are located along the front edge of the notebook
.
1.4.3 Keyboard
The Extensa Series Keyboard is an IBM

enhanced-type keyboard with the
standard character and function keys plus 12 programmable function keys
(F1 through F12).
Using the Special Function (Fn) key which assigns multiple functions to
keys, the keyboard can emulate the IBM 101/102 keyboards.
The keyboard features a special keyboard interface chip that can detect
multiple levels of key input (good simulation of N-key rollover for up to 10
keys).
Some of the major features of the keyboard include:
•
Integrated numeric keypad
T o u c h p a d
Pointing Device
Select Buttons
Figure1-4 Extensa Touchpad
1-6 General Description