![Key pad for the SHARP EL-9900 Calculator](/images/new-backgrounds/123574/12357467x1.webp)
Key pad for the SHARP EL-9900 Calculator
Advanced Keyboard
Graphing keys | Cursor movement keys |
Power supply ON/OFF key | Clear/Quit key |
Secondary function specification key | Variable enter key |
Alphabet specification key | Calculation execute key |
Display screen | Communication port for peripheral devices |