Implicit costs can also be thought of as intangible costs that are not easily accounted for. For example, the time and effort that an owner puts into the maintenance of the company, rather than working on expansion, can be viewed as an implicit cost of running the business.
Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets.
Ten years ago, a new open source company or project was news. Not anymore. Open source dominates mobile, with Android displacing the seemingly unbeatable iOS in both smartphones and tablets. Open source also dominates cloud, with every significant cloud platform except Azure built using open source. And even Azure treats open source technologies as first-class citizens on its platform. And open source dominates Big Data, with Hadoop and NoSQL technologies the major forces used for managing the world's data explosion.