March 1, 1973 – Xerox announced the Alto, the first shipping computer system with a mouse-driven graphical interface. Well, “shipping” may be a strong word. Roughly 2,000 of these beauties were produced and, predominantly, used within Xerox and schools. Look at that screenshot. Look familiar? Doesn't look all that different than your current computer, does it? And this was more than 40 years ago. Movable, overlapping windows. Bitmap graphics. WYSIWYG text editing. And, for the software developers out there: Bit Blit. First done, right here.