e-book chapter 5
Quiz yourself by thinking what should be in
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on it to display the answer.
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| What are the types of pointing devices? | mouse; trackball; touchpad; touch screen; pen input; light pen;digitizer; digital pen
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| What does an input device do? | Translates data into a form the computer can process
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| What does an output device do? | Translates information processed by the computer into a form humans can understand
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| What are the types of keyboards? | wired and wireless
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| Which type of keyboard is connected to a CPU via a serial or USB port? | wired
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| What are the two ways to digitize audio? | sound board and MIDI board
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| What is the function of a keyboard? | To convert letters, numbers, and characters into electrical signals
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| How are wired keyboards connected to a CPU? | By a serial or USB port
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| What types of technology are required for a wireless keyboard to function properly? | IR (infrared) technology or Radio Frequency (RF) technology
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| What are the two processes a "dumb terminal" can do? | input and output
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| True or false: dumb terminals process data. | False
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| What type of terminal has a screen, processor, keyboard, and memory? | intelligent
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| What is the main pointing device? | mouse
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| What type of mouse uses laser beams and special chips to encode data for the computer? | optical
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| What type of mouse has a ball inside that touches the desktop surface and rolls? | mechanical
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| What does a mouse control on the screen (monitor)? | mouse pointer
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| When a mouse pointer changes to this, text can be entered. | I-beam
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| What type of pointing device is mounted on top of a stationary device? | trackball
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| What type of pointing device allows users to slide one's finger over a small flat surface? | touchpad
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| Which pointing device is often used in ATMs, information, kiosks, reservation kiosks, voting machines, cellphones, and e-books? | touch screen
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| Which pointing device uses handwriting recognition to translate cursive writing into data? | pen input
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| Which pointing device uses a wired connection to a computer terminal and may require covered hands? | light pen
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| Which pointing device converts drawings and photos to digital data? | digitizer
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| Which pointing device has a tiny camera in its tip to capture writing? | digital pen
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| dpi is an acronymn that stands for what? | dots per inch
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| The term "resolution" refers to an image's what? | sharpness
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| What does a flatbed scanner work like? | photocopier
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| Bar code readers translate symbols into what? | digital code
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| How many types of bar codes are there? | three
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| True or false: 1D bar codes are regular horizontal stripes. | False
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| True or false: 2D bar codes are different sized squares. | False
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| What is the acronym for magnetic-ink character recognition? | MICR
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| OMRs use special scanners to read bubble/pencil marks - true or false? | True
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| OCR – optical character recognition converts editable text format to pictures - true or false? | False
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| What is the name of the peripheral device that is a stand-alone unit that only sends and receives faxed documents? | dedicated fax machine
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| What is the circuit board installed in a computer that sends and receives faxes? | fax modem
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| Two ways to digitize audio are via sound board and MIDI board - true or false? | True
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| What is the name of the device that is a video camera attached to a computer to record live moving images? | webcam
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| What is the name of the device that captures and digitizes one frame at a time? | frame grabber video card
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| What is the name of the device that converts analog to digital signals at rates up to 30 frames per second, resulting in what looks like a motion picture? | full motion video card
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| Most digital cameras can be connected to a PC by USB or via firewall - true or false? | False
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| What type of system converts a person’s speech into digital signals? | speech recognition
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| What type of input device is used to detect speed, movement, weight, pressure, temperature, humidity, wind, current, fog, gas, smoke, light, shapes, images, etc.? | sensor
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| What is the acronym for the tags that have a microchip containing specific code numbers? | RFID
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| What is the science of measuring individual body characteristics? | biometrics
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| What type of data exists electronically is intangible and impermanent? | softcopy
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| What type of data is relatively permanent? | hardcopy
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| A display screen is also known as a what? | monitor
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| What is dp an acronym for? | dot pitch
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| What is the term that refers to the number of bits stored in a dot (pixel)? | color depth
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| What is the term that refers to the number of times per second the pixels are recharged? | refresh rate
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| Flat-panel displays are made of four plates of glass separated by a layer of liquid crystals - true or false? | false
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| What is the acronym for memory in graphics cards? | VRAM
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| A dot-matrix printer is also known as what type of printer? | impact
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| A laser printers and inkjet printer is also known as what type of printer? | nonimpact
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| A low to medium resolution nonimpact printer, that uses coated paper that darkens when heat is applied, is called what type of printer? | thermal
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| What is the name of the specialized output device designed to produce large high-quality, 3-D graphics, often used by architects, engineers, and map-makers? | plotter
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| What type of output produces digitized sounds, including “3-D” sound? | sound
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| What type of output converts digital data into speechlike sounds? | voice
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| What type of output allows photographic images to be played quickly enough to appear as full-motion? | video
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| What is the medical term for the condition caused by pressure on the median nerve in the wrist, due to short repetitive movements? | carpal tunnel
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| What is the medical term for the condition caused by improper use of computer display screens, with symptoms such as eyestrain, headaches, and double vision? | computer vision
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| What type of fields are waves of electrical energy and magnetic energy, often linked to cancer? | electromagnetic
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| What is the term that describes the methodology of designing a workplace with working conditions and equipment that are safer and more efficient? | ergonomics
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