Color graphs. PC link port. 3.7 inch color display. Fraction key. Complex number calc. Full-color LCD screen - bursting with over 65,000 brilliant colors with a spacious 3.7" LCD Screen - over 82,000 pixels (384 x 216). Users can create graphs over pictures of real-life scenes to better understand mathematical functions. Color-Link and conditional formatting for graphs, charts and spreadsheet formatting. Casio "Picture Plot" Technology - infusing real images into math. 16MB maximum storage memory capacity and Requires 4 AAA batteries