How good is your computer?
zComputing means moving bits around, so an important question is how many bits can be handled at one time
zWord size: how many bits are handled at a time (8, 16, 32, 64) by memory or the processor
zBus size: how many bits can move around at once
yanalogy: two-lane, four-lane or eight-lane
highway
zBus speed: how fast they move
