In order for our devices to communicate with one another, we need to set up the networking hardware and cable connections. We will also need to connect the necessary peripherals in order to interact with the Raspberry Pi's boot loading software.
Provided is a list of recommended and optional items you will need and following this we will discuss each of them in detail:
Two Raspberry Pi Model B's, preferred with 512 MB RAM
HDMI-capable or VGA/DVI monitor with appropriate adapter or adapter cable
USB keyboard
USB mouse
Two 1A at 5 V Micro-USB power units
A desk-mounted power strip with both USB and mains outlets (optional)
Three Ethernet/RJ45 network cables
A small network switch
An existing Internet connection
Two SD cards that are compatible with the Raspberry Pi
Housing units for the Raspberry Pi boards (optional)
Lego (optional)