Information Systems - Peripherals
CC-BY-SA source: https://en.wikiversity.org/wiki/Information_Systems/Peripherals
Terms in this set (75)
Auxiliary device used for computer input, output, or data storage.
Keyboards, pointing devices, scanners, microphones, and webcams.
Monitors, printers, and speakers.
data storage devices
Hard drives, flash drives, optical drives, Network Attached Storage (NAS), media players, and smart phones.
An electronic device that can read and decode barcodes and send the result to a computer through the device's output port.
A digital optical disc data storage format designed to supersede the DVD format, with a storage capacity of 25 GB per layer, and dual layer discs (50 GB) being the industry standard for high definition (1080p) feature-length video discs.
A wireless technology standard for exchanging data over short distances from fixed and mobile devices, and building personal area networks (PANs).
CD (Compact Disc)
A digital optical disc data storage format originally developed to store and play only sound recordings (CD-DA), but was later adapted for storage of data (CD-ROM), with a storage capacity of 737 MB.
CD-ROM (Compact Disc Read-Only Memory)
A pre-pressed optical compact disc which contains data and is not writable or erasable.
CD-RW (Compact Disc-ReWritable)
A compact disc that can be written, read arbitrarily many times, erased and written again.
CRT (Cathode Ray Tube)
A vacuum tube containing one or more electron guns, and a fluorescent screen used to view images.
A camera that encodes digital images and videos digitally and stores them for later reproduction.
Represent an object, image, sound, document or signal (usually an analog signal) by generating a series of numbers that describe a discrete set of its points or samples.
The number of distinct pixels in each dimensions that can be displayed on a device.
A type of computer printing which uses a print head that moves back and forth, or in an up and down motion, on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like the print mechanism on a typewriter.
A digital optical disc storage format with a storage capacity of 4.7 GB for a single-layered, single-sided disc and 8.5 GB for a dual-layered, single-sided disc.
A computer keyboard designed with ergonomic considerations to minimize muscle strain and related problems.
The practice of designing products, systems or processes to take proper account of the interaction between them and the people who use them.
A data storage device used for storing and retrieving digital information, connected via USB, eSATA, FireWire, or Thunderbolt.
fax (short for facsimile)
The telephonic transmission of scanned printed material.
Enables a computer to transmit and receive documents as faxes on a telephone line.
FireWire (IEEE 1394)
An interface standard for a serial bus for high-speed communications and isochronous real-time data transfer developed by Apple and replaced with Thunderbolt.
A data storage device that includes flash memory, typically with an integrated Universal Serial Bus (USB) interface.
flatscreen display / flat panel display
A light, thin display usually based on LCD technologies, and back-lit to make them easier to read in bright environments.
A computer input device that enables a user to hand-draw images, animations and graphics, with a special pen-like stylus, similar to the way a person draws images with a pencil and paper.
The ability of a computer to receive and interpret intelligible handwritten input from sources such as paper documents, photographs, touch-screens and other devices.
Any transparent display that presents data without requiring users to look away from their usual viewpoints.
The ability to replace computer system components without shutting down the system.
Uses a print head that either hits the surface of the ink ribbon, pressing the ink ribbon against the paper (similar to the action of a typewriter), or hits the back of the paper, pressing the paper against the ink ribbon.
A type of computer printer that recreates a digital image by propelling droplets of ink onto paper, plastic, or other substrates.
An input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.
A typewriter-style device, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches.
An electrostatic digital printing process that passes a laser beam back & forth over an electron-charged, cylindrical drum, to define a differentially-charged image.
A flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals. Liquid crystals do not emit light directly.
An impact printer in which one line of text is printed at a time.
A medium for magnetic recording, made of a thin magnetizable coating on a long, narrow strip of plastic film.
MICR (magnetic ink character recognition)
A character-recognition technology used mainly by the banking industry to ease the processing and clearance of checks and other documents.
An electronic flash memory data storage device used for storing digital information, commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players and video game consoles.
An acoustic-to-electric transducer or sensor that converts sound in air into an electrical signal.
MIDI (Musical Instrument Digital Interface)
A technical standard that describes a protocol, digital interface and connectors and allows a wide variety of electronic musical instruments, computers and other related devices to connect and communicate with one another.
A device that modulates signals to encode digital information and demodulates signals to decode the transmitted information.
An electronic visual display device.
A pointing device that detects two-dimensional motion relative to a surface.
An office machine which incorporates the functionality of multiple devices in one, including printer, scanner, photocopier, fax, and e-mail.
Technology that enables a surface to recognize the presence of more than one or two points of contact with the surface.
The mechanical or electronic conversion of images of typewritten or printed text into machine-encoded text.
A type of computer architecture or software architecture that is designed to make adding, upgrading and swapping components easy.
optical disk drive
A disk drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.
optical mark reader
A device used to capture human-marked data from document forms such as surveys and tests.
A communication interface based on a 25-pin connector, also known as a printer port or Centronics port.
A physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.
A computer printer for printing vector graphics.
POS terminal (Point of Sale terminal)
A device which processes customer payments in exchange for goods or after provision of a service.
A peripheral which makes a persistent human readable representation of graphics or text on paper or similar physical media.
The use of wireless electromagnetic fields to transfer data, for the purposes of identifying and tracking objects.
The ability to access an item of data at any given coordinates in a population of addressable elements.
Injury to the musculoskeletal and nervous systems that may be caused by repetitive tasks, forceful exertions, vibrations, mechanical compression, or sustained or awkward positions.
A brand name used by Apple for screens that have a higher pixel density than their previous models.
A device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.
A device whose purpose is to detect events or changes in its environment, and then provide a corresponding output.
The ability to access a group of data elements in a predetermined, ordered sequence.
A device that uses integrated circuit assemblies as memory to store data persistently.
A communication interface through which information transfers in or out one bit at a time and based on a 9-pin connector.
A device which converts an electrical audio signal into a corresponding sound.
A computer accessory used to assist in navigating or providing more precision when using a touchscreen.
A data storage device that reads and writes data on a magnetic tape.
A digital printing device which produces a printed image by selectively heating coated thermochromic paper.
An input device normally layered on the top of an electronic visual display of an information processing system.
A pointing device featuring a tactile sensor, a specialized surface that can translate the motion and position of a user's fingers to a relative position on the operating system that is outputted to the screen.
A stationary pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes.
TrackPoint (pointing stick)
An isometric joystick used as a pointing device and typically mounted in a computer keyboard.
UPS (Uninterruptable Power Supply)
An electrical apparatus that provides emergency power to a load when the input power source, typically main power, fails.
An industry standard that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices communicating at 12 Mbps, 480 Mbps, or 5 Gbps.
A device that receives a video signal and projects the corresponding image on a projection screen using a lens system.
A video camera that feeds or streams its image in real time to or through a computer to a computer network.
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