For example, the way cashiers entered the price of products into the terminal and logistics systems changed drastically with the invention of bar codes and scanners.
An assortment of specialist scanners, probes and other paraphernalia are carefully laid out, ready for action.
Brain scanners are notoriously expensive for scientists and claustrophobic for participants, with no room for people to do things like eat in them.
The TSA's Web site says the devices "screen passengers for a wide range of threats while maintaining passenger privacy" but some critics say the "naked scanners" go too far.
In the past, the in-store technology focus for retailers included the traditional front-end point of sale (that is, cash register), associated receipt printers, scanners, and displays.
In fact, this suite can interface with scanners or an attached microphone to create the carrier file.
The scanners cannot, however, pick up anything concealed inside the body of a traveler.
Antimatter may sound exotic, but it's already used in everyday technology, such as medical PET (Positron Emission Tomography) scanners.
Some experts argue that the broad use of the scanners raises the same question that pertains to any other routine exposure to small doses of radiation: do the benefits outweigh the risks?
But many brain injured patients cannot be assessed in these scanners because they have metal plates or pins, or they are unable to remain still.
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