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Chapter 6 - Output Presented by: Nick Cristella Megan McGee Dena LoCastro Overview of the Presentation Introduction to Output Display Devices Cathode Ray Tube Monitors Flat Panel Printers Audio Output Devices Other Output Devices Introduction to Output What is Output?

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chapter 6 output

Chapter 6 - Output

Presented by:

Nick Cristella

Megan McGee

Dena LoCastro

overview of the presentation
Overview of the Presentation
  • Introduction to Output
  • Display Devices
    • Cathode Ray Tube Monitors
    • Flat Panel
  • Printers
  • Audio Output Devices
  • Other Output Devices
introduction to output
Introduction to Output
  • What is Output?
    • Output: the result of data being processed into something usable.
  • Categories of Output
    • Text
    • Graphics
    • Audio
    • Video
  • Additional Vocabulary
  • Text: documents are composed primarily of words and numbers.
  • Examples of text documents:
    • Memos
    • Letters
    • Reports
    • Advertisements
    • Newspaper
    • Books
  • Graphics: added to a document to assist in understanding and to enhance the aesthetics.
  • Examples:
    • Clip Art
    • Photographs
    • Charts
    • Animation
  • Audio: sounds or music used to enhance a presentation or another document.
  • Examples:
    • Games
    • Music
    • Research Programs
    • Websites
  • Video: the mixing of sound and moving picture to assist in understanding.
  • Examples
    • Video Games
    • Movies
    • News Clips
    • Websites
additional vocabulary
Additional Vocabulary
  • Output Device: any item that conveys information to one or more persons.
  • Examples:
    • Television
    • Speakers
    • Computer Monitor
display devices
Display Devices
  • Introduction to Display Devices
  • CRT Monitors
    • Quality
    • Video Cards
  • Flat Panel Displays
    • Technology
    • Video Cards
    • Gas Plasma Monitors
      • Television
introduction to display devices
Introduction to Display Devices
  • Display Device: a method of visually presenting text, graphics, and video.
  • Soft Copy: items on the display device that are only there temporarily.
  • Monitor: a plastic or metal casing that protects the display device
    • Monochrome: displays in one color
    • Gray Scaling: displays in black, white, and grays.
crt monitors
CRT Monitors
  • CRT: Cathode Ray Tube
  • Similar to a standard television, mainly because it uses the same CRT technology.
video cards
Video Cards
  • Video Card: (a.k.a: graphics card) changes digital computer output into an analog signal to send it to the CRT monitors.
  • Bit depth: number of bits the card uses to store information concerning each pixel.
flat panel displays
Flat Panel Displays
  • LCD Monitor: a monitor that uses a liquid crystal display instead of the cathode ray tube.
  • It takes up much less desk space then a CRT monitor.
  • Nit: unit of visible light that is equal to one candela per square meter.
    • Candela: standard unit of light intensity.
video cards and lcd monitors
Video Cards and LCD Monitors
  • DVI (Digital Video Interface): Where the LCD monitor plugs into the computer.
  • S-Video Port: where one can connect outside devices such as a TV or DVD player.
gas plasma and hdtv
Gas Plasma and HDTV
  • Gas Plasma: display using gas plasma, which uses a layer of gas for the liquid crystal.
  • HDTV: Uses digital broadcasting signals, using digital sound, and supporting a wide screen.
    • Interactive TV: a two-way communications system where users can interact with the programming.
      • Games
      • Voting
  • Printer: an output device that puts visuals on a physical medium, such as paper.
  • There are two ways to orient a document on a page
    • Portrait: taller than it is wide
    • Landscape: wider than it is tall
  • There are many different types of printers available today:
    • Impact, Dot-Matrix, Line, Non-impact, Ink-Jet, Photo, Laser, Thermal, Mobile, Label, Large-Format, and Wireless.
impact and nonimpact printers
Impact: forms visuals on a document by actually striking a mechanism against the ink ribbon that hits the paper.

Can be very noisy

Produces near letter quality (NLQ) output, which is slightly less than what is acceptable for business letters.

Nonimpact: forms visuals, but never actually touches the paper.

They either spray ink, or use heat and pressure.

Most printers are nonimpact in present day.

Impact and Nonimpact Printers
types of impact printers
Types of Impact Printers
  • Dot-Matrix: produces images by striking tiny wire pins against an ink ribbon.
  • Line: a high speed impact printer that prints one line at a time.
ink jet printers
Ink-Jet Printers
  • Ink-Jet: a nonimpact printer that prints by spraying tiny drops of liquid onto the document.
    • Prints letter quality (LQ)
  • Printer resolution is measured in dpi (dots per square inch.
  • Bubble Jet: Ink-jet printer that sprays the ink through tiny nozzles.
photo printers
Photo Printers
  • Photo Printer: a color printer that produces pictures that are on the same quality level as lab photos.
  • Can print any size and can even be printed on paper that feels like a photograph.
laser printers
Laser Printers
  • Laser Printer: high speed, high quality, nonimpact.
    • Uses software that allows them to interpret page description language (PDL).
    • PDL: tells the printer how to lay out a page.
  • Prints using a laser and a powdered ink, or toner.
thermal printers
Thermal Printers
  • Thermal Printer: creates images by pressing hot pins against heat sensitive paper.
    • Thermal wax-transfer: creates images by melting wax onto heat sensitive paper.
    • Dye Sublimation: uses heat to transfer colored dye to specially coated paper.
mobile and label printers
Mobile and Label Printers
  • Mobile: a small printer that is battery powered and can accompany a laptop computer.
  • Label: small printer that prints on an adhesive paper.
  • Postage: a label printer that has a digital scale to print postage.
plotters and large format printers
Plotters and Large-Format Printers
  • Plotter: printers that are made to print specialty prints, such as blueprints and maps.
  • Large-format: Printers that are large enough to print high quality posters, signs, etc.
speakers and headsets
Audio output device: part of a computer that produces music and other sounds.

Speakers and headsets are most common.

Speakers have two parts to them

Woofer: enhances bass

Tweeter: enhances higher noises

Headsets allow for audio where a speaker is not practical, such as in a lab, or in a crowded space.

Voice Output: when you hear a person’s voice or when the computer verbally communicates to the user.

Speakers and Headsets
fax machines
Fax Machines
  • Fax Machine (short for facsimile machine): an output device that sends and receives data over telephone lines.
    • A fax is the document being transmitted.
  • This requires a fax modem, which allows a computer to send or receive faxes.
    • This can be an internal or external device on the computer.
multifunction peripherals
Multifunction Peripherals
  • Multifunction Peripheral: a single machine that has the capabilities of a printer, scanner, copy machine, and a fax machine.
    • Sometimes referred to as all-in-one devices.
    • These are also used by small offices and home offices, because they take up considerably less space.
data projectors
Data projectors: a device that uses the image from the computer screen and projects it onto a larger screen for an audience.

There are two types.

LCD: uses liquid crystal display technology.

DLP: digital light projector. It uses tiny mirrors to reflect images clearly, even in a well lit room.

Data Projectors
  • Joysticks and wheels use force-feedback technology to do their jobs. They uses the movements of the user to send resistance and simulate real-life experiences.
the end

The End

Chapter 6 – Output


Megan McGee

Dena LoCastro

Nick Cristella