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2. Fingerprint scanner - Wikipedia

   en.wikipedia.org/wiki/Fingerprint_scanner

   There are four types of fingerprint scanners: [7] optical scanners, capacitance scanners, ultrasonic scanners, and thermal scanners. The basic function of every type of scanner is to obtain an image of a person's fingerprint and find a match for it in its database. The measure of the fingerprint image quality is in dots per inch (DPI). [8]

3. Touch ID - Wikipedia

   en.wikipedia.org/wiki/Touch_ID

   Logo used by Apple Touch ID module of an iPhone 6s. Touch ID is an electronic fingerprint recognition feature designed and released by Apple Inc. that allows users to unlock devices, make purchases in the various Apple digital media stores (App Store, iTunes Store, and Apple Books Store), and authenticate Apple Pay online or in apps.

4. Fingerprint - Wikipedia

   en.wikipedia.org/wiki/Fingerprint

   Some fingerprint reagents are specific, for example ninhydrin or diazafluorenone reacting with amino acids. Others such as ethyl cyanoacrylate polymerisation, work apparently by water-based catalysis and polymer growth. Vacuum metal deposition using gold and zinc has been shown to be non-specific, but can detect fat layers as thin as one molecule.

5. Biometric device - Wikipedia

   en.wikipedia.org/wiki/Biometric_device

   Fingerprint sensors can be found on mobile devices. The fingerprint sensor is used to unlock the device and authorize actions, like money and file transfers, for example. It can be used to prevent a device from being used by an unauthorized person. It is also used in attendance in number of colleges and universities.

6. Why Apple's In-Screen Fingerprint Reader Could Do More ... - AOL

   www.aol.com/news/why-apple-apos-screen...

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7. Use Face, Fingerprint or PIN to sign in to AOL

   help.aol.com/articles/use-face-fingerprint-or...

   Entering a password to sign in to your AOL account can sometimes feel like a hassle, especially if you forget it. If your smart device is enabled with biometric authenticators like a fingerprint sensor or facial recognition technology, you can sign in with ease. Enable biometric sign in

8. Integrated Automated Fingerprint Identification System

   en.wikipedia.org/wiki/Integrated_Automated...

   Scanning forms ("fingerprint cards") with a forensic AFIS complies with standards established by the FBI and National Institute of Standards and Technology (NIST). To match a print, a fingerprint technician scans in the print in question, and computer algorithms are utilized to mark all minutia points, cores, and deltas detected on the print ...

9. Is it safe to use facial recognition and fingerprint scanning?

   www.aol.com/lifestyle/safe-facial-recognition...

   Both facial recognition and fingerprint ID make it harder for other people to access your phone. "I am a big fan of additional identity authentication by smartphone users and Touch ID and Face ID ...