[$] Defining open hardware

Open-source hardware (or open hardware) refers to hardware that isdeveloped in a manner similar to open-source software. There's a widelyaccepted definition of open-source hardware, but it is probably not as wellknown as its open-source-software counterpart. In addition, there is a popularcertification program that hardware makers can use to indicate which oftheir devices meets that criteria. But there are some vendors that areshowing more enthusiasm than others in participating in the process-or inproducing open hardware at all.