Question 1.9: Connecting the System You have everything that you need for ......
Connecting the System
You have everything that you need for your Raspberry Pi, and you want to connect it all together.
Unless you are embedding your Raspberry Pi in a project or using it as a media center, you need to attach a keyboard, mouse, monitor, and probably a WiFi dongle. As this adds up to more than three connections, even with a Raspberry Pi model B, you’ll need a USB hub to provide enough USB sockets.
Figure 1-8 shows a typical Raspberry Pi system.
Discussion
If you use a wireless keyboard/mouse combination with a single USB dongle, then the other free USB socket (assuming you have a Raspberry Pi model B) could be used for a WiFi dongle. However, in all likelihood a USB hub is going to be useful when you want to attach an external USB disk or USB flash drive.
The Raspberry Pi is perfectly happy with pretty much any keyboard or mouse, wired or wireless. The exception to this is Bluetooth wireless keyboards and mice, which will not work with the Raspberry Pi.
See Also
The official Raspberry Pi Quick Start Guide
