The major components of Flutter are:
1. Dart Programming Language: Dart is the programming language used to create Flutter apps. It is an object-oriented language that is easy to learn and use.
2. Widgets: Widgets are the building blocks of Flutter apps. They are used to create user interfaces and handle user input. Examples of widgets include buttons, text fields, and images.
3. Framework: The Flutter framework provides a set of APIs and tools for building apps. It includes a rich set of widgets and tools for creating beautiful, natively compiled apps.
4. Platforms: Flutter apps can be deployed to Android, iOS, Windows, and web platforms. It supports both 32-bit and 64-bit architectures.
5. Development Tools: Flutter comes with a suite of development tools for debugging and testing apps. These include an integrated development environment (IDE), a command-line tool, and a device emulator.