PCs, do the work of plucking the data out of the ether, rather than relying on a central unit to control the way those data are routed.

ECONOMIST: Ethernet

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.

FORBES: Silicon Confusion

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.

CNN: Machines on a mission