Arduino Programming Worksheet

$1.$ What is an Arduino? What are programs called in the Arduino programming environment? What is the extension for an Arduino program?

$2.$ What is the difference between $$Digital$$ and $$Analog$$ pins. What purpose do they fulfill on an Arduino.

$3.$ Why are you required to import libraries in Arduino IDE?

$4.$ What is the purpose of the push button on the Arduino Uno board?

$5.$ What are comments, and why are they necessary?

$6.$ Give two examples of datatypes that can be used in Arduino programming.

$7.$ What is the difference between a local variable and a global variable?