Based on the analysis of the stationary non-time-varying state probability model, this paper shows the relationship between power efficiency and latency of mobile information processing under a semi-batch power management method. According to the semi-batch information processing model, the mobile terminal can work at the waiting state with low power consumption and in the mean time accumulate information in the terminal information queue. When the amount of accumulated information reaches a preset level, then the machine can switch to busy state and process the accumulated information. In an ideal situation, we have a potential to save sound 70 power consumption, if we can tolerate around three times the latency of a real-time palmtop multimedia terminal. As well, a mobile user would prefer to see an entire piece of information instead of seeing the fragments of a picture sporadically. For these reasons, the semi-batch power management model for a palmtop multimedia terminal can be useful.
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