Texas Instruments 3000 - Manual (Page 26)

Connectors and Ports
Caution: Turn off the computer before connecting any external devices to the
computer's connectors.
Right Side Panel
The right side panel of the computer contains the numeric keypad connector to connect
the optional Numeric Keypad to your computer.
A dust cap is provided for the numeric keypad connector. Remove and store this cap in a
safe place while the connector is in use.
Left Side Panel
On the left side panel of the computer are the five connectors shown in the figure on the
inside front cover.
2-6 Learning About Your Computer