Such a device requires far less effort on the part of respondents.

And most consumers demand that a device require no new skills.

The device requires him to wear a microphone on the side of his head.

Current devices require more than 10,000 electrons to represent one bit of information.

A device that plays video would most likely require a hard drive for storage.

Such a device however requires an enormous amount of power and cooling.

The device has no bearings and does not require a motor.

A general device requires that one can change where the fluid goes and what processes happen to it.

The device, which costs $199, does not require cellular phone service or additional fees.

"The device requires an extraordinary level of cooperation, and in fact, it is very active."