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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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slide1

Chapter 3

Output and Storage

presentation overview
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
output4
Types of Output

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

Output
output5
Types of Output

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

Audio – any sound, including speech and music

Output
output6
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
output8
Output Devices and Media

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

monitors, printers, plotters

Output
output9
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
display devices
Monitor

most common soft-copy output device

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

Display Devices
display devices11
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
display devices12
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
display devices13
Monitor Ergonomics

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

Display Devices
display devices14
Display Devices

Other display devices

display devices15
Display Devices

Other display devices

  • Wearable computers – devices such as headsets, eyeglasses, watches, etc., free workers from working in front of a computer
display devices16
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
display devices17
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
printers19
What types of printers are available?

Impact printers

• dot-matrix and line printers

Printers
printers20
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
printers21
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
printers22
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
printers23
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
printers24
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
printers25
An ink jet printer produces output by spraying tiny ink droplets onto the paper or other medium to form text and images.Printers
printers28
Other printers

Thermal printers – use heat to transfer an impression onto paper

Printers
printers29
Other printers

Thermal printers – use heat to transfer an impression onto paper

Plotters – produce large-sized high-quality documents

Printers
printers30
Other printers

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
printers31
Other printers

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
printers32
Printers

Other printers

printers33
Printers

Other printers

  • Postage printers – weigh items, print postage, and meter postage account
printers34
Printers

Other printers

  • Postage printers – weigh items, print postage, and meter postage account
  • Portable printers – battery powered, small, light-weight
printers35
Printers

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
audio output
Audio Output
  • Built-in speakers produce warning sounds.
audio output37
Audio Output
  • Built-in speakers produce warning sounds.
  • Sound cards produce high-quality sound through external speakers for many applications using music, voice, etc.
audio output38
Audio Output
  • 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.
audio output39
Audio Output
  • 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.
storage devices and media
Storage Devices and Media

Examples of commonly used file extensions

storage devices and media41
Storage Devices and Media

More examples of commonly used file extensions

storage devices and media42
Storage Devices and Media
  • A storage device is hardware that houses a storage medium on which data is recorded.
storage devices and media43
Storage Devices and Media
  • 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

storage devices and media44
Storage Devices and Media
  • 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

magnetic storage devices and media
Floppy Disk

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
magnetic storage devices and media47
The process of 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
magnetic storage devices and media48
A hard drive contains one or more 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
magnetic storage devices and media49
USB Flash Drive

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
magnetic storage devices and media50
Tape Cartridges and Tape Drives

magnetically coated tape in a small plastic housing

used mainly for backing up the contents of a hard drive

Magnetic Storage Devices and Media
optical storage devices
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
optical storage devices52
Optical Storage Devices

How do optical devices store data?

optical storage devices53
How do optical devices store data?

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

Optical Storage Devices
optical storage devices54
How do optical devices store data?

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

Flat, unburned areas on disc are called lands.

Optical Storage Devices
optical storage devices55
How do optical devices store data?

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
optical storage devices57
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
optical storage devices59
(CD-R) Compact Disc, Recordable

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
optical storage devices61
(CD-RW) Compact Disc, Rewritable

can be erased and rewritten multiple times

Optical Storage Devices
optical storage devices62
(CD-RW) Compact Disc, Rewritable

can be erased and rewritten multiple times

CD-RW drive and special software required

Optical Storage Devices
optical storage devices63
(CD-RW) Compact Disc, Rewritable

can be erased and rewritten multiple times

CD-RW drive and special software required

can hold 650-700 MB of information

Optical Storage Devices
optical storage devices66
DVD-R Discs (Digital Versatile Disc, Recordable)

can be recorded on only one time

can be read by most commercial DVD-ROM players

Optical Storage Devices
optical storage devices67
DVD-R Discs (Digital Versatile Disc, Recordable)

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
optical storage devices68
DVD-R Discs (Digital Versatile Disc, Recordable)

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
optical storage devices70
DVD-RW Discs (Digital Versatile Disc, Rewritable)

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

Optical Storage Devices
optical storage devices71
DVD-RW Discs (Digital Versatile Disc, Rewritable)

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
optical storage devices72
DVD-RW Discs (Digital Versatile Disc, Rewritable)

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
large computer system storage devices
Magnetic Disk Storage

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
large computer system storage devices76
Magnetic Tape 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
large computer system storage devices79
WORM (write once, read many) disk

used for very high capacity storage

mainly found in mainframe applications

Large Computer System Storage Devices
large computer system storage devices80
WORM (write once, read many) disk

used for very high capacity storage

mainly found in mainframe applications

ideal for storing archival-type material

Large Computer System Storage Devices
large computer system storage devices81
WORM (write once, read many) disk

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
on the horizon
On the Horizon

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

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