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Data body mealplan |
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Here is an example of how the data body is fed by routine day-to-day activities, a data body meal plan:
Breakfast: phone calls, drive GPS (global positioning system) equipped car, emerge from surveillance camera equipped subway, go online, send E-mails, complete online registration forms, receive faxes
Lunch: pay lunch with credit card, use your customer card when shopping, use mobile phone, pass through biometric access controls, use smart card
Afternoon snack: visit doctor, file insurance claim
Dinner: respond to TV commercials, complete income tax form, visit chat rooms, use free web mail. Programme phone wake-up call.
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Backbone Networks
Backbone networks are central networks usually of very high bandwidth, that is, of very high transmitting capacity, connecting regional networks. The first backbone network was the  NSFNet run by the National Science Federation of the United States.
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