13 computers that changed the world

Codebreaking computer Colossus is 70 this year - we look at the landmark models that followed that British innovation, from the Magnavox Odyssey to the IBM PC and beyond. This year marks the 70th birthday of Colossus, one of the most important machines in the history of IT. As well as being the world’s first “electronic” computer, it also played a pivotal role in helping to end World War II by deciphering coded German military messages. Colossus has achieved something of a cult status among computer nerds and historians alike, but could you name the world’s first laptop, tablet or games console? Or even the world’s first web server or the first computer with a mouse-driven graphical user interface?