A single processor (CPU) that can work sequentially on a single task at a time(noun)
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Use "uniprocessor" in a sentence
"There is also a Xeon L3406 series aimed at the uniprocessor micro server segment that has a TDP of 30 watts, suitable for high-density form factors and power-sensitive environments."
"Otellini said that sales of uniprocessor Xeon chips used in entry servers aimed at SMBs helped pick up some of the slack."
"These processors are aimed specifically at entry-level uniprocessor server platforms and use the new LGA 1156 socket."