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Chapter 3. Output and Storage. Presentation Overview. Output Display Devices Printers Audio Output Storage Devices and Media Magnetic Storage Devices and Media Optical Storage Devices Large Computer System Storage Devices. Types of Output. Output. Types of Output

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Chapter 3

Output and Storage


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Presentation Overview

  • Output

  • Display Devices

  • Printers

  • Audio Output

  • Storage Devices and Media

  • Magnetic Storage Devices and Media

  • Optical Storage Devices

  • Large Computer System Storage Devices



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Types of Output

Text– characters and numbers used to create words, sentences, and paragraphs

Output


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Types of Output

Text – characters and numbers used to create words, sentences, and paragraphs

Audio – any sound, including speech and music

Output


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Types of Output

Text – characters and numbers used to create words, sentences, and paragraphs

Audio – any sound, including speech and music

Video – motion images, similar to those seen on a television or movie screen

Output



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Output Devices and Media

Output device–any hardware device that makes information available to a user

monitors, printers, plotters

Output


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Output Devices and Media

Output device –any hardware device that makes information available to a user

monitors, printers, plotters

Output medium–any medium on which information is recorded

paper, plastic film, magnetic tape

Output


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Monitor

most common soft-copy output device

consists of a viewing screen and electronic parts that show information on a screen

Display Devices


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Monitor Resolution

Number of pixels determines quality.

Apixelis a single dot of anything displayed on a screen.

More pixels cause higher resolution and more detailed images.

Display Devices


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Monitor Performance

Determined by

Video card – more VRAM means truer color and faster speed

Resolution – more pixels mean sharper graphics

Refresh rate – faster rate means less screen flicker

Display Devices


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Monitor Ergonomics

Correct positioning when using a monitor can reduce physical fatigue and discomfort.

Display Devices


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Display Devices

Other display devices


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Display Devices

Other display devices

  • Wearable computers – devices such as headsets, eyeglasses, watches, etc., free workers from working in front of a computer


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Display Devices

Other display devices

  • Wearable computers – devices such as headsets, eyeglasses, watches, etc., free workers from working in front of a computer

  • Television displays – HDTV provides a wider screen and higher resolution


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Display Devices

Other display devices

  • Wearable computers – devices such as headsets, eyeglasses, watches, etc., free workers from working in front of a computer

  • Television displays – HDTV provides a wider screen and higher resolution

  • Screen projector – projects images on a screen to large audiences



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What types of printers are available?

Impact printers

• dot-matrix and line printers

Printers


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What types of printers are available?

Impact printers

• dot-matrix and line printers

Nonimpact printers

• ink-jet printers, laser printers, thermal printers, and plotters

Printers


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What types of printers are available?

Impact printers

• dot-matrix and line printers

Nonimpact printers

• ink-jet printers, laser printers, thermal printers, and plotters

Special-purpose nonimpact printers

• postage printers, laser printers, and photo printers

Printers


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What types of printers are available?

Impact printers

• dot-matrix and line printers

Nonimpact printers

• ink-jet printers, laser printers, thermal printers, and plotters

Special-purpose nonimpact printers

• postage printers, laser printers, and photo printers

Multifunction device

• facsimile machine

Printers


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Portrait format’s (at left) name comes from the fact that traditional portraits are taller than they are wide. To illustrate a landscape (above), wider images are usually more useful.

Printers


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Before striking the ribbon, the dot matrix printer extends the correct combination of pins to form a specific character.

As with the display of pixels on a monitor, the more pins the printer uses, the sharper the printed letters.

Printers


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An ink jet printer produces output by spraying tiny ink droplets onto the paper or other medium to form text and images.

Printers



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Other printers of a copy machine.

Printers


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Other printers of a copy machine.

Thermal printers – use heat to transfer an impression onto paper

Printers


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Other printers of a copy machine.

Thermal printers – use heat to transfer an impression onto paper

Plotters – produce large-sized high-quality documents

Printers


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Other printers of a copy machine.

Thermal printers – use heat to transfer an impression onto paper

Plotters – produce large-sized high-quality documents

Photo printers – high-quality ink-jet printers print photos

Printers


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Other printers of a copy machine.

Thermal printers – use heat to transfer an impression onto paper

Plotters – produce large-sized high-quality documents

Photo printers – high-quality ink-jet printers print photos

Label printers – use heat to print on adhesive material

Printers


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Printers of a copy machine.

Other printers


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Printers of a copy machine.

Other printers

  • Postage printers – weigh items, print postage, and meter postage account


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Printers of a copy machine.

Other printers

  • Postage printers – weigh items, print postage, and meter postage account

  • Portable printers – battery powered, small, light-weight


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Printers of a copy machine.

Other printers

  • Postage printers – weigh items, print postage, and meter postage account

  • Portable printers – battery powered, small, light-weight

  • Facsimile machines – can send and receive copies of documents through telephone lines


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Audio Output of a copy machine.

  • Built-in speakers produce warning sounds.


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Audio Output of a copy machine.

  • Built-in speakers produce warning sounds.

  • Sound cards produce high-quality sound through external speakers for many applications using music, voice, etc.


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Audio Output of a copy machine.

  • Built-in speakers produce warning sounds.

  • Sound cards produce high-quality sound through external speakers for many applications using music, voice, etc.

  • Speaker headsets position miniature speakers over the ears to minimize sound distraction.


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Audio Output of a copy machine.

  • Built-in speakers produce warning sounds.

  • Sound cards produce high-quality sound through external speakers for many applications using music, voice, etc.

  • Speaker headsets position miniature speakers over the ears to minimize sound distraction.

  • Voice outputproduces synthesized human speech.


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Storage Devices and Media of a copy machine.

Examples of commonly used file extensions


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Storage Devices and Media of a copy machine.

More examples of commonly used file extensions


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Storage Devices and Media of a copy machine.

  • A storage device is hardware that houses a storage medium on which data is recorded.


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Storage Devices and Media of a copy machine.

  • A storage device is hardware that houses a storage medium on which data is recorded.

  • Magnetic devices

    – floppy disk

    – hard disk

    – tape cartridge

    – USB flash drive


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Storage Devices and Media of a copy machine.

  • A storage device is hardware that houses a storage medium on which data is recorded.

  • Magnetic devices • Optical devices

    – floppy disk – compact disc (CD)

    – hard disk – digital versatile

    – tape cartridge disc (DVD)

    – USB flash drive


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Floppy Disk of a copy machine.

a thin, circular Mylar® wafer sandwiched between two sheets of special cleaning tissue inside a plastic case

stores data along the tracks and sectors on the floppy disk

Magnetic Storage Devices and Media


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Floppy disk handling and storage guidelines of a copy machine.

Magnetic Storage Devices and Media


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The process of of a copy machine.formatting a floppy disk results in the disk being arranged into tracks and sectors. Data is stored in sectors along the tracks.

Magnetic Storage Devices and Media


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A hard drive contains one or more of a copy machine.hard disks on which data is stored. When activated, read/write heads move in and out between the disks to record and/or read data.

Magnetic Storage Devices and Media


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USB Flash Drive of a copy machine.

a magnetic storage device that plugs into a USB port of a computer

about the size of a car key, can store up to several gigabytes of data

Magnetic Storage Devices and Media


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Tape Cartridges and Tape Drives of a copy machine.

magnetically coated tape in a small plastic housing

used mainly for backing up the contents of a hard drive

Magnetic Storage Devices and Media


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The CD is loaded printed side up, and the holes in the tray allow the laser to read the bottom surface of the disc once the tray is closed.

Optical Storage Devices


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Optical Storage Devices allow the laser to read the bottom surface of the disc once the tray is closed.

How do optical devices store data?


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How do optical devices store data? allow the laser to read the bottom surface of the disc once the tray is closed.

High-intensity laser records data by burning indentions (pits) onto disc surface.

Optical Storage Devices


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How do optical devices store data? allow the laser to read the bottom surface of the disc once the tray is closed.

High-intensity laser records data by burning indentions (pits) onto disc surface.

Flat, unburned areas on disc are called lands.

Optical Storage Devices


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How do optical devices store data? allow the laser to read the bottom surface of the disc once the tray is closed.

High-intensity laser records data by burning indentions (pits) onto disc surface.

Flat, unburned areas on disc are called lands.

Two low-intensity lasers read and write each bit as a digit 0 and each land as a digit 1.

Optical Storage Devices



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Information is stored on a series of sectors along a single track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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Types and storage capacities of optical discs track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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(CD-R) Compact Disc, Recordable track that spirals outward from the center to the outer edge of the optical disc.

allows PC to record (burn) information on a CD-R disc

writes once to disc, and resulting CD can be read in a standard CD-ROM drive

can hold 650-700 MB of information

Optical Storage Devices


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(CD-RW) Compact Disc, Rewritable track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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(CD-RW) Compact Disc, Rewritable track that spirals outward from the center to the outer edge of the optical disc.

can be erased and rewritten multiple times

Optical Storage Devices


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(CD-RW) Compact Disc, Rewritable track that spirals outward from the center to the outer edge of the optical disc.

can be erased and rewritten multiple times

CD-RW drive and special software required

Optical Storage Devices


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(CD-RW) Compact Disc, Rewritable track that spirals outward from the center to the outer edge of the optical disc.

can be erased and rewritten multiple times

CD-RW drive and special software required

can hold 650-700 MB of information

Optical Storage Devices


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DVD-R Discs (Digital Versatile Disc, Recordable) track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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DVD-R Discs (Digital Versatile Disc, Recordable) track that spirals outward from the center to the outer edge of the optical disc.

can be recorded on only one time

Optical Storage Devices


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DVD-R Discs (Digital Versatile Disc, Recordable) track that spirals outward from the center to the outer edge of the optical disc.

can be recorded on only one time

can be read by most commercial DVD-ROM players

Optical Storage Devices


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DVD-R Discs (Digital Versatile Disc, Recordable) track that spirals outward from the center to the outer edge of the optical disc.

can be recorded on only one time

can be read by most commercial DVD-ROM players

can hold up to 4.7 GB of data

Optical Storage Devices


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DVD-R Discs (Digital Versatile Disc, Recordable) track that spirals outward from the center to the outer edge of the optical disc.

can be recorded on only one time

can be read by most commercial DVD-ROM players

can hold up to 4.7 GB of data

new format called Blu-ray can store 27 GB of data

Optical Storage Devices


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DVD-RW Discs (Digital Versatile Disc, Rewritable) track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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DVD-RW Discs (Digital Versatile Disc, Rewritable) track that spirals outward from the center to the outer edge of the optical disc.

allows data to be erased and recorded over many times without damaging disc

Optical Storage Devices


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DVD-RW Discs (Digital Versatile Disc, Rewritable) track that spirals outward from the center to the outer edge of the optical disc.

allows data to be erased and recorded over many times without damaging disc

can store up to 4.7 GB of data

Optical Storage Devices


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DVD-RW Discs (Digital Versatile Disc, Rewritable) track that spirals outward from the center to the outer edge of the optical disc.

allows data to be erased and recorded over many times without damaging disc

can store up to 4.7 GB of data

can be read by most commercial CD-ROM players

Optical Storage Devices


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Care instructions for optical discs track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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Steps for cleaning an optical disc track that spirals outward from the center to the outer edge of the optical disc.

Optical Storage Devices


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Magnetic Disk Storage track that spirals outward from the center to the outer edge of the optical disc.

Disk drive houses many hard disks in a plastic container.

Read/write heads record information and store data by moving among disks.

Large Computer System Storage Devices


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Magnetic Tape track that spirals outward from the center to the outer edge of the optical disc.Storage

removable reels of magnetic tape

data is stored and accessed sequentially along full length of tape

used primarily for backup and storage of data

Large Computer System Storage Devices


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WORM (write once, read many) disk track that spirals outward from the center to the outer edge of the optical disc.

Large Computer System Storage Devices


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WORM (write once, read many) disk track that spirals outward from the center to the outer edge of the optical disc.

used for very high capacity storage

Large Computer System Storage Devices


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WORM (write once, read many) disk track that spirals outward from the center to the outer edge of the optical disc.

used for very high capacity storage

mainly found in mainframe applications

Large Computer System Storage Devices


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WORM (write once, read many) disk track that spirals outward from the center to the outer edge of the optical disc.

used for very high capacity storage

mainly found in mainframe applications

ideal for storing archival-type material

Large Computer System Storage Devices


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WORM (write once, read many) disk track that spirals outward from the center to the outer edge of the optical disc.

used for very high capacity storage

mainly found in mainframe applications

ideal for storing archival-type material

usually readable only on drive on which data were written

Large Computer System Storage Devices


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On the Horizon track that spirals outward from the center to the outer edge of the optical disc.

Based on the information presented in this chapter and your own experience, what do you think is on the horizon?


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