Whether Joe Smith is doing rounds, shopping, or jogging, it's difficult to tell where the PC ends and he begins. Here are some personal computing devices currently under development.
Text will either be displayed on eyeglass lenses or projected directly onto the retina. Dr. Smith's PDA, for example, will constantly check his schedule, then use advanced display technologies to tell him where he needs to go next.
A combination telephone, voice-text pager, GPS device, and scheduler, the watch keeps track of where Dr. Smith is at all times. If necessary, the hospital can instantly locate and contact him. A beeping alert will tell him where to go and provide a map.
The skin might be a good alternative to more traditional wiring for conducting the low-grade electricity needed to power the computing devices on Dr. Smith.
A computer in the sole
of Dr. Smith's sneakers senses the speed of his gait in the emergency room. When he is running, the shoe automatically increases support; when he slows to a walk, it lessens the support to increase the cushion.
Electrodes and conductive bands monitor heart rate, breathing, and lung performance. In the future, implantable sensors might distribute a stream of real-time information directly from internal organs to the shirt. All of this data can be broadcast directly to Dr. Smith's home computer and to his office.
The size of a credit card, it will store reams of personal information-calendar, financial records, details about friends and family members, likes and dislikes. It might also automatically tally the price of items Dr. Smith picks up at the supermarket, letting him bypass the checkout line.