Chapter 5 Exercise 3

3. Find at least two biometric login devices and their prices.

Devices and prices vary, but fingerprint readers are easy, they are built into laptops for about $30. Iris recognition systems seem to be disappearing, costs appear to have been too high ($1700-$4000-more). Some laptops with Web cams have built-in facial recognition software for basically no added cost. Not sure if it works or not.