The upgrade on the machine includes a boost to the system bus--the primary pathway between the central processing chip and the computer's memory, from 100 MHz to 133 MHz.

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Those included stored memory (the ability to hold both a stored program and data), conditional control transfer, which allowed the computer to stop and be resumed, and the central processing unit, which allowed all computer functions to be coordinated through one source.

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The NOR type needs to be ultrafast because it is directly connected to the central processing unit of a computer and stores its basic input-output system (the operating system used by the microchip that lies beneath user-interface operating systems, such as Windows).

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The application is designed to stop using the computer's central processing unit (CPU) when it is left to run in the background.

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The megahertz number so often cited in the marketing materials of computer companies refers to the computer's central processing unit chip as a partial measure of its ability to process data.

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UK-based computer chip designer Imagination Technologies is buying US central processing unit (CPU) architect Mips's business operations and some of its patents.

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