In some embodiments, a method comprises detecting a request to display a tag cloud, where the tag cloud includes a plurality of tags and the tags hyperlink to related web content. The setting of the total throughput and the throughput per unit length are largely decoupled to simplify process control. The controller measures the length of time required for the capacitor to charge to a predetermined voltage, and the known relationship between the dark current of the photodiode and the temperature is utilized to determine temperature. Meanwhile, any request from the control chip to the front side bus is inhibited when the CPU is blocked from outputting any request to the front side bus.