We will not notice. Security is one of the problems. Croda IT introduced such a system last year for security purposes. It was costly but soon paid for itself because it was no longer necessary to have someone work out their payroll. They had an automatic computer record of who was in and out.
Experiments are underway with similar technology for cash machines.
Computers will pervade our homes, workplaces and social life. Our homes will be able to think for us. Locking the door could set the alarm or we could phone our house and tell it to turn on the oven, says Prof Cockton. And we will see a rise in video conferencing - at work and home. Already the technology is being piloted so that you can control exactly what the person at the other end sees.