What’s a Raspberry Pi ? Is it some kind of food or beverages? Nope! It’s a credit-card sized computer and the most importantly low cost ! Maybe 10 years earlier, we still using a big-sized CPU paired with CRT Monitors taking so much space and also money ofc. Now imagine you can get fully operational mini-sized computer just for about $30-40. Cheap isn’t it? Although it doesn’t come with monitor, keyboard or mouse. You can simply make use of your HDMI-enabled TV as a temporary monitor and use cheap keyboard or monitor. So what’s so amazing about Raspberry Pi compared to conventional computers or laptops?