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  2. Photodetector - Wikipedia

    en.wikipedia.org/wiki/Photodetector

    Usually made in a complementary metal–oxide–semiconductor (CMOS) process, and also known as CMOS image sensors, APSs are commonly used in cell phone cameras, web cameras, and some DSLRs. Cadmium zinc telluride radiation detectors can operate in direct-conversion (or photoconductive) mode at room temperature, unlike some other materials ...

  3. 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]

  4. Telecommunications in Pakistan - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_in_Pakistan

    The impact of these two measures has been the expansion of mobile telephony from 0.3 million mobile phones in 2001 to 160 million mobile phones in 2018. [6] Pakistan's telecommunications infrastructure includes microwave radio relay, coaxial cable, fiber-optic cable, cellular, and satellite networks.

  5. Optical character recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_character_recognition

    Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

  6. Comparison of smartphones - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_smartphones

    Fingerprint scanner; ... Optical Nothing Phone 2a: MediaTek Dimensity 7200 Pro Octa-Core, ... Magnetic, 18 W 7.10", 3120x1440, 90 Hz AMOLED

  7. Optical reader - Wikipedia

    en.wikipedia.org/wiki/Optical_reader

    An optical reader is a device that observes visual information and translates it into digital information, [1] as found within most image and barcode and matrix-code scanners. An example of optical readers are marksense systems for elections where voters mark their choice by filling a rectangle, circle, or oval, or by completing an arrow.