How does the computer know it’s really you? Why when it uses biometric technology, of course! Just put your hands up and look HAL right in the eye. The majority of biometric identification systems use fingerprint or retina scans as authentication. Others may use iris scans, voice patterns, hand geometry, or facial characteristics as the basis of identification. It should be no surprise that in today’s ultra-paranoid world, business at the biometric companies is booming.

The International Association for Biometrics defines biometric as a “measurable, physical characteristic or personal behavioral trait used to recognize the identity, or verify the claimed identity, of an enrollee.”

Biometric technology is increasingly being built into computers, access points, and other security conscious places. Companies are taking the biometric route for situations where simple password and card access just don’t cut the mustard. With biometric safeguards, accuracy and convenience go hand-in-hand (cough). There’s no need to worry about remembering your password or whether you have your keycard.

Gateway sells a notebook computer with an integrated biometric fingerprint reader. The Gateway 450’s “pre-boot authentication using TouchChip Bios Extension (TBX) prevents the notebook from booting, which severely limits the notebook’s value to an unauthorized user.” Or in other words, the fingerprint reader allows you to safeguard your passwords and logins with just a touch.

High-security locations are using fingerprint door locks, requiring biometric identification for entry into sensitive areas. While iris and retina scans may sound cool, most of today’s biometric ID entry systems are based on fingerprint scanning technology.

You can even protect your valuables with just one finger (or up to fifty). Corporate Safe Specialists sells a line of biometric safes, starting at only $350. Now you needn’t fear forgetting the combo …