Quantity   Component name
1 × ESP8266 Generic ESP8266/NodeMCU is a good choice for making IoT projects. Cheap and powerful
1 × Arduino Ethernet Not have a Wireless connection? You can use Ethernet as well.
1 × Texas Instruments CC3200 This small chip provides a lot of features. Competing with the ESP8266. Also compatible with the Platform.
1 × Intel Edison Stunning chip for making IoT projects.
1 × Adafruit CC3000 A chip changing the IoT rules some years ago.
1 × Arduino Yun A Linux Board bridged to Arduino code. So reliable connections.
1 × Raspberry Pi Something to comment?
1 × C++ Not hardware, but there are thousands of C++ code for building the server and libraries. You can check some at Github.