Arduino Simplicity Gaining Roots Through Arduino Yun
Arduino Yun is actually a microcontroller board based on Atmega 32u4 and AtherosAR9331. Atheros is a processor which could support Linux distribution.
Introduction to Arduino
The above video brings you the brief introduction to Arduino. Have a look at it to explore your knowledge on how an Arduino works. In addition, if you have various doubts like: What is an analog pin? What is a digital pin? What is PWM? Just get cleared by watching this small introduction video of an Arduino. More videos on the lineup, Stay Tuned.