The Five Basic Parts
1.1 The System Unit
1.1.1 The Front of the System Unit
The front of the system unit has a green indicator light (LED). When you turn
on your workstation, the light flickers for a while as the system performs its
self-tests and then glows steadily once the system is up and running.
Figure 1–2 The Front of the System Unit
Power-up
indicator light
WSMXS005
.
1–4 The Five Basic Parts
