Ada is a structured, statically typed, imperative, and object-oriented high-level computer programming language, originally designed by Jean Ichbiah of CII Honeywell Bull under contract to the United States Department of Defense. Ada was named after Ada Lovelace, who is often credited as the first computer programmer.

1. Strong Typing: Ada enforces strong typing, which helps in catching errors at compile time rather than at runtime.
2. Modularity: Ada supports modular programming through packages, which helps in organizing code and promoting reusability.
3. Concurrency: Ada has built-in support for concurrent programming, making it suitable for real-time and embedded systems.
4. Exception Handling: Ada provides robust exception handling mechanisms to manage runtime errors effectively.
5. Readability and Maintainability: Ada's syntax is designed to be readable and maintainable, which is crucial for long-term software projects.

• 1979: The U.S. Department of Defense initiated the development of Ada to address the need for a standardized, high-level programming language for embedded and real-time systems.
• 1983: The first version of Ada, known as Ada 83, was standardized by ANSI and ISO.
• 1995: Ada 95 introduced object-oriented programming features and other enhancements.
• 2005: Ada 2005 added more features, including support for real-time systems and improved interfacing with other languages.
• 2012: Ada 2012 introduced contract-based programming and other modern features.

1. Reliability: Ada's strong typing and compile-time checks lead to more reliable and error-free code.
2. Safety: Ada is widely used in safety-critical systems, such as aviation, medical devices, and military applications.
3. Concurrency: Ada's built-in support for concurrency makes it ideal for real-time and parallel processing applications.
4. Career Opportunities: Knowledge of Ada can open up career opportunities in industries that require high-reliability and safety-critical software.

An Ada program typically consists of the following components:

1. With Clause: Used to include external packages.
2. Procedure Declaration: The main entry point of the program.
3. Begin-End Block: The main executable part of the program.

• with Ada.Text_IO;: This line includes the Ada.Text_IO package, which provides input/output functionalities.
• procedure Hello_World is: This line declares a procedure named Hello_World.
• begin ... end Hello_World;: This block contains the executable statements of the procedure. In this case, it prints "Hello, World!" to the console using Ada.Text_IO.Put_Line.

Write an Ada program that prints your name to the console.

• The with Ada.Text_IO; clause includes the necessary package for input/output operations.
• The procedure Print_Name is line declares a new procedure named Print_Name.
• The begin ... end Print_Name; block contains the executable statement that prints your name to the console.

In this introduction, we covered the basics of Ada, including its key features, history, and why it is worth learning. We also looked at the basic structure of an Ada program and provided a simple example to get you started. In the next section, we will set up the Ada environment to begin writing and running Ada programs.