The Square Stand converts an iPad into a full-featured cash register and credit card scanner. The cash register business started dying in the eighties, and I've been to the site of the National Cash Register company in Dayton, Ohio. The massive complex that built cash registers for most of the twentieth century is mostly gone. Where huge warehouses and assembly lines stood, the University of Dayton marching band (the Pride of Dayton) now rehearses their half time routines. And the last NCR building is now a classroom complex for the University of Dayton.
We so often hear about the jobs lost through "automation" and "computers," but the news media usually fails to point out all the new businesses being created. Apple is now a major supplier of "cash registers," along with companies like Square. NCR failed to adapt, and the free market rewarded the companies that did change and adjust to new technology with growth and new jobs. The "record" business, including CDs, is nearly dead, but the "iPod" business has spawned thousands of new businesses and hundreds of thousands of new jobs.