Complex sentence: As such, the system does not need to be permanently installed to a hard drive, as most modern operating systems would; instead, the computer can be rebooted with the GeeXboX CD when media playback is desired.
Split into simpler sentences: As such, the system does not need to be permanently installed to a hard drive, as most modern operating systems would. Instead, the computer can be booted with the GeeXboX CD when media playback is desired.