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  2. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver , and a transmitter .

  3. Card reader - Wikipedia

    en.wikipedia.org/wiki/Card_reader

    A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...

  4. Computer graphics (computer science) - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics...

    A modern rendering of the Utah teapot, an iconic model in 3D computer graphics created by Martin Newell in 1975. Computer graphics is a sub-field of computer science which studies methods for digitally synthesizing and manipulating visual content. Although the term often refers to the study of three-dimensional computer graphics, it also ...

  5. Computer graphics - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics

    Computer graphics deals with generating images and art with the aid of computers. Computer graphics is a core technology in digital photography, film, video games ...

  6. Near-field communication - Wikipedia

    en.wikipedia.org/wiki/Near-field_communication

    RFID compatible ISO/IEC 18000-3: Active Standardisation body ISO/IEC Bluetooth SIG Network standard: ISO/IEC 13157 etc. was IEEE 802.15.1; now by SIG specs Topology Point-to-point Wireless personal area network (WPAN) Cryptography Not with RFID Available Range < 20 cm (7 + 7 ⁄ 8 in) ≈100 m (class 1) ≈50 m Frequency 13.56 MHz 2.4–2.5 GHz ...

  7. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    HCI—Human—Computer Interaction; HD—High Density; HDD—Hard Disk Drive; HCL—Hardware Compatibility List; HD DVD—High Definition DVD; HDL—Hardware Description Language; HDMI—High-Definition Multimedia Interface; HECI—Host Embedded Controller Interface; HF—High Frequency; HFS—Hierarchical File System; HHD—Hybrid Hard Drive

  8. Real-time computer graphics - Wikipedia

    en.wikipedia.org/wiki/Real-time_computer_graphics

    The goal of computer graphics is to generate computer-generated images, or frames, using certain desired metrics. One such metric is the number of frames generated in a given second. Real-time computer graphics systems differ from traditional (i.e., non-real-time) rendering systems in that non-real-time graphics typically rely on ray tracing.

  9. 2D computer graphics - Wikipedia

    en.wikipedia.org/wiki/2D_computer_graphics

    2D computer graphics is the computer-based generation of digital images—mostly from two-dimensional models (such as 2D geometric models, text, and digital images) ...