Imd103(Output Presentation)

8/6/2019 Imd103(Output Presentation)

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Nizarman

Zulkifli

Ahmad Faris

Amin Fikri Nik Faris

Hafizi

Khairul Izwan

Shah Izwan Hanafi

Azrol

adam


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What is output?

Next

Data that has been processed into a useful form,

Output device is any hardware component that can convey

information to user


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What is an LCD monitor?

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Uses liquid crystal display

Have a small footprint

Mobile devices that contain

LCD displays include Notebook computer, Tablet

PC, PDA, and Smart Phone


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What about using multiple LCD monitors?

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Some users position

two or more monitors

side by side or stacked

Allows users to runmultiple applications

simultaneously


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What are some mobile devices that have LCD screens?

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PDA

smart phone

Tablet PC

notebookcomputer


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How does LCD work?

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Step 1. Panel

of fluorescenttubes emits

light waves

through

polarizing glass filter,

which guides light

toward layer of liquid

crystal cells.

Step 2. As light passes through liquid crystal, electricalcharge causes some of the cells to twist, making light waves

bend as they pass through color filter.

Step 3. When light reaches

second polarizing glass filter, lightis allowed to pass through any

cells that line up at the first

polarizing glass filter. Absence and

presence of colored light cause

image to display on the screen.

Liquid crystal cells

Color filter

Transparent electrodes

Alignment layer

Polarizing glass filter

Fluorescent tube panel

Uses liquid compound to present information on a

display


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What is resolution?

Sharpness and clarity of image

Higher resolution makes imagesharper, displays more text on

screen, makes some elements

smaller

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Number of horizontal and

vertical pixels in a display device


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How do you use an LCD monitor with a videocard?

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Plug monitor into Digital Video Interface (DVI) port

on computer

standard monitorport S-video port

DVI port


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What is a plasma monitor?

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Displays image by applying voltage to layer of gas

Larger screen size and higher display quality than LCD, but

are more expensive


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Great for game playing, watching movies, and browsing the Internet

HDTVHDTV

(high(high--definition television)definition television)

is the most advanced form

of digital TV

What is digital television (DTV) and high-definition television (HDTV)?

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Uses digital signals to produce

crisper, higher-quality output

on LCD and plasma televisions

Many programs can be

broadcast on a single

digital channel

All broadcast stations

transmit digital signalsHigh resolution


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What is a CRT monitor?

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Contains cathode-ray

tube (CRT)

Screen coated with tiny

dots of phosphor material Each dot consists of a red,

blue, and green phosphor

Common sizes are 15, 17,

19, 21, and 22 inches

Viewable size is diagonal

measurement of actual

viewing area


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What is the ENERGY STAR program?

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Encourages manufacturers to create energy-efficient

devices that require little power when not in use

Monitors and devices meeting guidelines display

ENERGY

STAR label


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What determines the quality of a CRT monitor? Screen resolution

efres r te is s ee t ic onitor re r s

i es on screen

Text cre te it s ller ot itc is e sier

to re

Next


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How does video travel from the processor to a CRT monitor?

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Step 1. Theprocessor sends

digital video data

to the video card.

Step 2. The video cardsdigital-to-analog converter

(DAC) converts the digital

video data to an analog signal.

Step 3. Theanalog signal is

sent through a

cable to the CRT

monitor.

Step 4. TheCRT monitor

separates the

analog signal

into red, green,

and blue signals.

Step 5. Electron gunsfire the three color signals

to the front of the CRT.

Step 6. An image isdisplayed on the screen when

the electrons hit phosphor

dots on the back of the screen.

Video card (also called a graphics card) converts digital

output from computer into analog video signal


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What is a printer?

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Output device that

produces text and

graphics on a physical

medium Result is hard copy, or

printout

Two orientations: portrait

and landscape

portrait

landscape


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What are the various ways to printdocuments and pictures?

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various

ways to

print

printer

cable

docking

station

media

card

cable

wireless

printers


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What is a nonimpact printer?

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Forms characters and graphics without striking paper

Ink-jet printer sprays tiny drops of liquid ink

onto paper

Prints in black-and-white or color on a varietyof paper types


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What is the resolution of a printer?

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Sharpness and clarity

Measured by number of dots per inch (dpi) printer

can output

300 dpi300 dpi 600 dpi600 dpi 1200 dpi1200 dpi


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How does an ink-jet printer work?

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Step 1. A smallresistor heats the

ink, causing the

ink to boil and

form a vapor

bubble.

Step 2. Thevapor bubble

forces the ink

through the

nozzle.

Step 3. Inkdrops onto the

paper.

Step 4. As the vapor bubblecollapses, fresh ink is drawn into

the firing chamber.

print cartridge

print head

firing

chamber

nozzlebubble resistor ink

ink dot


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What is a laser printer?

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High-speed, high-quality

nonimpact printer

Prints text and graphics in very

high-quality resolution,ranging from 1,200 to 2,400 dpi

Typically costs more than

ink-jet printer, but is much

faster


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How does a laser printer work?

Next


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What is a thermal printer?

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Generates images by pushing electrically heated pins

against heat-sensitive paper

Dye-sublimation printer (also called a digital photo printer)

uses heat to transfer dye to specially coated paper


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What is a mobile printer?

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Small, lightweight, battery-powered printer that allows

mobile user to print from notebook computer, Tablet

PC, or PDA while traveling


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What are label printers and postage printers?

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Small printer that prints on adhesive-type material

Postage printer has built-in digital scale and prints

postage stamps

Most also print bar codes


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What is a plotter?

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Sophisticated printer used to produce high-quality

drawings

Large-format printer creates photo-realistic-quality

color prints


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What is a dot-matrix printer?

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Impact printer that produces printed images

when tiny wire pins strike ribbon

Impact printer forms

characters by strikingmechanism against inked

ribbon that contacts paper


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What is a line printer?

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High-speed impact printerthat prints entire lineat a time

Speed measured in lines

per minute (lpm) Band printer prints fully

formed characters using ahammer mechanism

Shuttle-matrix printer ishigh-speed printer thatworks like dot-matrix

printer


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What is an audio output device?

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Computer component that produces music, speech, or

other sounds

Speakers and headsets are common devices


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What is voice output?

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Computer talks to you through speakers on computer

Internet telephony allows you to have conversation

over eb


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What is a facsimile (fax) machine?

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Device that transmits and receives documents over

telephone lines


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What is a fax modem?

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Modem that allows you to send and receive electronic

documents as faxesexternal fax

modem

internal fax card

in system unit

fax machine


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What is a multifunction peripheral?

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Provides functionality

of printer, scanner,

copy machine, and

fax machine


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What is a dataprojector?

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Device that takes image

from computer screen

and projects it onto

larger screen


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What is force feedback?

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Sends resistance to joystick or wheel in response to

actions of user


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What is the Magnifier command?

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indowsMagnifier command

enlarges text

and other items

on screen


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What other output options are available for visuallyimpaired users?

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Change indow settings,

such as increasing size or

changing color of text to

make words easier to read

Blind users can work with

voice output

Braille printer outputs

information in Brailleonto paper


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Imd103(Output Presentation)

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