$5 computer (Raspberry Pi Zero)

In case you guys want to get a cheap raspberry pi I found a website that sells the raspberry pi zero for $5,https://www.adafruit.com/product/2885
Also, another great little piece of technology is theESP8266 NodeMCU (here's an Amazon link for it. )
I personally use it as WIFI-De-Autherbut it has many different uses. (link on to how to make it into a de-auther and what exactly that is.)

Hope this information is ofsome use to you.