computer, simulated to be working interactively. The purpose of the exhibit was to show the anatomy of a computer and to explain how the various parts work and communicate with each other. Before entering the computer's chassis, visitors could roll a giant trackball to play "World Traveller" on the giant screen. Wall-sized graphics by David Macaulay and interactive exhibits explained how all kinds of information, from text, graphics, video, music, as well as computer programs can be represented as 1's and 0's. Inside the giant chassis, visitors walked between a wall-sized graphics card and memory card to the microprocessor, upon which a projected electron microscope imagery of a CPU's circuits in operation appeared. Further on, a RAM set of modules plugged into the motherboard included reveals showing electron microscope imagery of memory circuits, Peering into a mini-van sized hard drive, visitors could see read/write heads position themselves on either side of rotating platters. Richard Fowler was recruited from The Science Museum, London/Bradford, as exhibit designer. The exhibit garnered international publicity and more than doubled visitor traffic to the museum. People and Computers: Milestones of a Revolution (1991) Through a series of nine milestones portrayed with vignettes and interactive exhibits, this permanent exhibit portrayed computing from the punched card machines of the 1930s through the ubiquitous embedded microprocessors of the 1990s. The birth of electronic computer milestone featured a piece of the 1951 Whirlwind I computer with an interactive exhibit explaining core memory. Machines for big business were exemplified by a UNIVAC I installation and an IBM System 360. The emergence of computer programming languages was featured in a milestone showing how for the first time, different computers were programmed to accept a common language - COBOL. A 1970s vignette portrayed a PDP-8 minicomputer being used backstage to control theater lighting, and applications to scientific computer were shown with a CRAY-1 at the European Centre for Medium-Range Weather Forecasts. A student publishing her school newspaper using a Macintosh showed the beginning of personal computing. Tools & Toys: The Amazing Personal Computer (1992) The exhibition demonstrated eight application areas using some 40 computer stations. The first area, "Making Pictures" featured a Virtual Reality Chair among other interactive stations focusing on graphics. The other areas addressed writing, making sound, calculating, playing games, exploring information, and sharing ideas. The Networked Planet (1994) Against a backdrop of the explosive growth of the Internet, this 4,000-square-foot