While we live in the modern era, where information is easily accessible through gadgets and networks, many people still do not have access to clean, safe drinking water. This may change with Watly, the world’s largest solar-powered computer. This 15-tonne, 130-foot long computer created by an Italian and Spanish company of the same name can purify water and deliver 5,000 litres of safe drinking water every day. What else? The machine will generate green electricity, provide wireless internet access and charge other devices too.