If you look at Arduino’s official website, it says “Arduino is an open-source electronics platform based on easy-to-use hardware and software”.
Don’t be confused . I will explain. Let’s understand each term in above definition.
What is hardware? Hardware is the physical, tangible parts or components of a computer, such as the cabinet, central processing unit, monitor, keyboard, computer data storage, graphics card, sound card, speakers and motherboard etc.
Software is a computer program. Computer hardware can do whatever we tell it to do but we cannot just say it in just plain english language. It won’t understand that. We have to tell it in the language that computer understands. That is called software program.
Open-Source means it is is freely available to use. Arduino is providing the platform so we can use it and build small or big electronic projects. Using Arduino we can make whatever we can imagine. Sky is the limit. We can make a robot that can solve a rubik’s cube. For now, we will start off with a simple circuit to make an LED blink.
To learn more in detail check out Arduino’s official website https://www.arduino.cc/en/Guide/Introduction