COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It uses mathematical pattern-recognition techniques on video images of one or both of the irises of an individual’s eyes,
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It is used to identify a person’s fingerprint for security purposes.
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It authenticates by recognizing people’s faces.
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It identifies users by the shape of their hands.
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It used to compare signatures in bank offices and other branch capture.
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Detailed explanation-1: -Biometric modality based on identifying a person by the shape of his or her hand.
Detailed explanation-2: -The devices use a simple concept of measuring and recording the length, width, thickness, and surface area of an individual’s hand while guided on a plate (Figure 1). Hand geometry systems use a camera to capture a silhouette image of the hand (Figure 2).
Detailed explanation-3: -Biometric identity Authentication System Using Hand Geometry Measurements.
Detailed explanation-4: -Shape of hand can also change with change in weight and aging. Hand geometry readers can be more expensive than many other biometric recognition options, for example fingerprint attendance system can start as low as $50 while price of an entry level hand geometry reader may start with $1000.
Detailed explanation-5: -Biometric modality: Hand geometry – what is it? Hand geometry biometric systems incorporate the salient features of finger geometry, but also include the surfaces of the hand itself and its side profile. Images are taken while the hand is kept palm down on a support plate and kept in position by the use of guide pegs.