ROS IN WORDS

Contents of this part posed as questions

1. What is ROS? Explain at a high-level.

2. Why use ROS (for robotics)? Explain why the features of ROS are considered useful for developing a robot.

3. Explain each of The key elements of ROS, i.e., explain each of the following:

   • Nodes

   • Topics

   • Messages

   • Publishing and Subscribing

   • Advertising versus publishing

   • Services

   • Namespaces

   • Parameters and the Parameter Server

   • ROS Master

   • Additionally, Put it all together, explain how these elements are used together, drawing an example to support your explanation.