Android Studio is the integrated development environment (IDE) for Google's Android operating system, built on JetBrains' IntelliJ IDEA software and designed specifically for Android development.
The Apache Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards.
Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
Ethereum is an open-source, blockchain-based public distributed computing platform and operating system they are used to codify, decentralize, secure and trade just about anything
Gmail is a free, advertising-supported email service offered as part of Google's G Suite, with 15GB of storage, color-coded inbox filters and unsend button.