Howstuffworks "How Printable Computers Will Work" - Manufacturing computers is a costly and time-consuming undertaking. A microprocessor fabrication plant costs $2 billion and takes two full weeks to produce one silicon-based microprocessor. Few computer enthusiasts have the resources to make their own computer chips. However, researchers are developing ways to allow anyone to become their own microprocessor fabricator. Users will simply download microchip designs from the Internet and print out a working ink-based, plastic processor on a desktop fabrication machine, similar to an ink jet printer.