Like a college graduate ready to head off into the workforce and start a career, Apple has graduated the iPad from tablet school. As he prepared to lift the curtain on the new 11-inch and 12.9-inch iPad Pro last week, CEO Tim Cook explained that Apple sees the iPad as a personal computer now. Apple says that new designation makes iPad the top-selling line of PCs in the world. It’s a fair comparison. After using a new iPad Pro 12.