SlideShare a Scribd company logo

Output Devices

M
MiXvideos

Output Devices

1 of 38
Download to read offline
L E C T U R E 6
D e c e m b e r , 2 0 1 8
IT in Business - I
Output Devices
Monitors
CRT & LCD
Printers
Impact Printers
Non-impact Printers
Plotters
Other Output Devices
Monitors
 A monitor is a peripheral device which displays computer
output on a screen.
 Screen output is referred to as soft copy.
 Types of monitors:
 Cathode-ray tube (CRT)
 Liquid Crystal Display (LCD or flat-panel)
 Light-emitting Diode (LED)
3
CRT
LCD
Monitors - CRT Monitors
• In CRT monitors, electrons are fired at phosphor
dots on the screen.
• The dots are grouped into pixels, which glow when
struck by electrons.
• In color CRTs, each pixel contains a red, green, and
blue dot.
• These glow at varying intensities to produce color
images.
Output Devices
Monitors - Flat-Panel Monitors
• Most flat-panel monitors use Liquid Crystal Display
(LCD) technology.
• Passive matrix LCD uses a transistor for each row and
column of pixels. The color displayed by a pixel is
determined by the electricity coming from the transistor.
• Active matrix LCD uses a transistor for each pixel on the
screen.
• Thin-film transistor (TFT) displays use multiple
transistors for each pixel.
• TV sets are CRTs and many desktop monitors use this
technology
• LCD is primarily used for laptops and other portable devices
Ad

Recommended

More Related Content

What's hot

Output devices of Computer
Output devices of ComputerOutput devices of Computer
Output devices of ComputerImtiAz Karim
 
Chapter 11: Printers and Scanners
Chapter 11: Printers and ScannersChapter 11: Printers and Scanners
Chapter 11: Printers and Scannersaskme
 
Computer presentation : Output Devices
Computer presentation : Output DevicesComputer presentation : Output Devices
Computer presentation : Output DevicesIBA, sukkur
 
Introduction to Printers
Introduction to PrintersIntroduction to Printers
Introduction to PrintersAnshuman Mishra
 
Display devices and printers
Display devices and printersDisplay devices and printers
Display devices and printersSajith Neyomal
 
scanners and plotters
scanners and plottersscanners and plotters
scanners and plottersHeenM
 
Flatbed scanner
Flatbed scannerFlatbed scanner
Flatbed scannerabinarkt
 
ZutA Robotic printer
ZutA Robotic printerZutA Robotic printer
ZutA Robotic printerDavid Jaison
 
Presentation printer
Presentation printerPresentation printer
Presentation printerDhruv Vyas
 
Surbhi fcpit ppt. copy
Surbhi fcpit ppt.   copySurbhi fcpit ppt.   copy
Surbhi fcpit ppt. copySurbhi_21
 
Ink jet and thermal printers
Ink jet and thermal printersInk jet and thermal printers
Ink jet and thermal printersHarshita Ved
 

What's hot (20)

output devices
output devicesoutput devices
output devices
 
Output devices of Computer
Output devices of ComputerOutput devices of Computer
Output devices of Computer
 
Chapter 11: Printers and Scanners
Chapter 11: Printers and ScannersChapter 11: Printers and Scanners
Chapter 11: Printers and Scanners
 
Computer presentation : Output Devices
Computer presentation : Output DevicesComputer presentation : Output Devices
Computer presentation : Output Devices
 
Introduction to Printers
Introduction to PrintersIntroduction to Printers
Introduction to Printers
 
Introduction to Printers
Introduction to PrintersIntroduction to Printers
Introduction to Printers
 
Printer
PrinterPrinter
Printer
 
Display devices and printers
Display devices and printersDisplay devices and printers
Display devices and printers
 
Printers
PrintersPrinters
Printers
 
Output devices
Output devicesOutput devices
Output devices
 
Printers
PrintersPrinters
Printers
 
Printer
Printer Printer
Printer
 
scanners and plotters
scanners and plottersscanners and plotters
scanners and plotters
 
Flatbed scanner
Flatbed scannerFlatbed scanner
Flatbed scanner
 
Types of printer
Types of printerTypes of printer
Types of printer
 
ZutA Robotic printer
ZutA Robotic printerZutA Robotic printer
ZutA Robotic printer
 
Presentation printer
Presentation printerPresentation printer
Presentation printer
 
Surbhi fcpit ppt. copy
Surbhi fcpit ppt.   copySurbhi fcpit ppt.   copy
Surbhi fcpit ppt. copy
 
Printer
PrinterPrinter
Printer
 
Ink jet and thermal printers
Ink jet and thermal printersInk jet and thermal printers
Ink jet and thermal printers
 

Similar to Output Devices

Devices that output Hardcopy
Devices that output HardcopyDevices that output Hardcopy
Devices that output HardcopyMaryam Fida
 
Output devices-of-computer-system
Output devices-of-computer-systemOutput devices-of-computer-system
Output devices-of-computer-systemparag dhok
 
output devices
output devicesoutput devices
output devicesraksharao
 
Printers,types ,working and use.
Printers,types ,working and use.Printers,types ,working and use.
Printers,types ,working and use.RosaDemalo
 
Printer & scanner by sanyam s.saini (me regular)
Printer & scanner by sanyam s.saini (me regular)Printer & scanner by sanyam s.saini (me regular)
Printer & scanner by sanyam s.saini (me regular)Sanyam Singh
 
Output devices and types of printers.pptx
Output devices and types of printers.pptxOutput devices and types of printers.pptx
Output devices and types of printers.pptxvarshachhajera
 
Input and Output devices.pptx
Input and Output devices.pptxInput and Output devices.pptx
Input and Output devices.pptxTanishaSingla5
 
Surbhi fcpit ppt.
Surbhi fcpit ppt.Surbhi fcpit ppt.
Surbhi fcpit ppt.Surbhi_21
 
2. Components of Computer (CSI-321)
2. Components of Computer (CSI-321) 2. Components of Computer (CSI-321)
2. Components of Computer (CSI-321) ghayour abbas
 
Core Hardware: Lecture 8
Core Hardware: Lecture 8Core Hardware: Lecture 8
Core Hardware: Lecture 8Awinash Goswami
 
Output Devices.pptx
Output Devices.pptxOutput Devices.pptx
Output Devices.pptxSanthiNivas
 

Similar to Output Devices (20)

Devices that output Hardcopy
Devices that output HardcopyDevices that output Hardcopy
Devices that output Hardcopy
 
Output devices-of-computer-system
Output devices-of-computer-systemOutput devices-of-computer-system
Output devices-of-computer-system
 
About printer
About printerAbout printer
About printer
 
Computer organisation
Computer organisationComputer organisation
Computer organisation
 
output devices
output devicesoutput devices
output devices
 
Printers,types ,working and use.
Printers,types ,working and use.Printers,types ,working and use.
Printers,types ,working and use.
 
Printer & scanner by sanyam s.saini (me regular)
Printer & scanner by sanyam s.saini (me regular)Printer & scanner by sanyam s.saini (me regular)
Printer & scanner by sanyam s.saini (me regular)
 
printer
printerprinter
printer
 
Printers
PrintersPrinters
Printers
 
Output devices and types of printers.pptx
Output devices and types of printers.pptxOutput devices and types of printers.pptx
Output devices and types of printers.pptx
 
Output hardware
Output hardwareOutput hardware
Output hardware
 
Input and Output devices.pptx
Input and Output devices.pptxInput and Output devices.pptx
Input and Output devices.pptx
 
Input Output devices
Input Output devicesInput Output devices
Input Output devices
 
Surbhi fcpit ppt.
Surbhi fcpit ppt.Surbhi fcpit ppt.
Surbhi fcpit ppt.
 
Assignment on Printer
Assignment on PrinterAssignment on Printer
Assignment on Printer
 
2. Components of Computer (CSI-321)
2. Components of Computer (CSI-321) 2. Components of Computer (CSI-321)
2. Components of Computer (CSI-321)
 
Core Hardware: Lecture 8
Core Hardware: Lecture 8Core Hardware: Lecture 8
Core Hardware: Lecture 8
 
Lecture 4
Lecture 4Lecture 4
Lecture 4
 
Output Devices.pptx
Output Devices.pptxOutput Devices.pptx
Output Devices.pptx
 
Output
OutputOutput
Output
 

More from MiXvideos

The hyperinflation of 1923 in Germany
The hyperinflation of 1923 in Germany The hyperinflation of 1923 in Germany
The hyperinflation of 1923 in Germany MiXvideos
 
Business communication
 Business communication Business communication
Business communicationMiXvideos
 
The Environment: Business Organizations and Channels
The Environment: Business Organizations  and ChannelsThe Environment: Business Organizations  and Channels
The Environment: Business Organizations and ChannelsMiXvideos
 
The Communicator: Objectives and Credibility
The Communicator: Objectives and CredibilityThe Communicator: Objectives and Credibility
The Communicator: Objectives and CredibilityMiXvideos
 
The audience
The audienceThe audience
The audienceMiXvideos
 
Data base management
Data base management Data base management
Data base management MiXvideos
 
Data base management
Data base management Data base management
Data base management MiXvideos
 
Information technology
Information technology Information technology
Information technology MiXvideos
 
Machine cycles
Machine cycles Machine cycles
Machine cycles MiXvideos
 
IT and Computing
   IT and Computing   IT and Computing
IT and ComputingMiXvideos
 
Microprocessor
MicroprocessorMicroprocessor
MicroprocessorMiXvideos
 
input devices
input devicesinput devices
input devicesMiXvideos
 
Digital Storage
Digital StorageDigital Storage
Digital StorageMiXvideos
 
Data Communication & Networks
Data Communication & NetworksData Communication & Networks
Data Communication & NetworksMiXvideos
 
computer networks
computer networks computer networks
computer networks MiXvideos
 
DATABASE MANAGEMENT
DATABASE MANAGEMENTDATABASE MANAGEMENT
DATABASE MANAGEMENTMiXvideos
 

More from MiXvideos (20)

The hyperinflation of 1923 in Germany
The hyperinflation of 1923 in Germany The hyperinflation of 1923 in Germany
The hyperinflation of 1923 in Germany
 
Business communication
 Business communication Business communication
Business communication
 
The Environment: Business Organizations and Channels
The Environment: Business Organizations  and ChannelsThe Environment: Business Organizations  and Channels
The Environment: Business Organizations and Channels
 
The Communicator: Objectives and Credibility
The Communicator: Objectives and CredibilityThe Communicator: Objectives and Credibility
The Communicator: Objectives and Credibility
 
The audience
The audienceThe audience
The audience
 
Data base management
Data base management Data base management
Data base management
 
Data base management
Data base management Data base management
Data base management
 
pizza hut
pizza hut pizza hut
pizza hut
 
pizza hut
pizza hut pizza hut
pizza hut
 
The message
The messageThe message
The message
 
Information technology
Information technology Information technology
Information technology
 
Machine cycles
Machine cycles Machine cycles
Machine cycles
 
IT and Computing
   IT and Computing   IT and Computing
IT and Computing
 
Microprocessor
MicroprocessorMicroprocessor
Microprocessor
 
input devices
input devicesinput devices
input devices
 
Digital Storage
Digital StorageDigital Storage
Digital Storage
 
Data Communication & Networks
Data Communication & NetworksData Communication & Networks
Data Communication & Networks
 
computer networks
computer networks computer networks
computer networks
 
DATABASE MANAGEMENT
DATABASE MANAGEMENTDATABASE MANAGEMENT
DATABASE MANAGEMENT
 
Sports
SportsSports
Sports
 

Recently uploaded

BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...
BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...
BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...Nguyen Thanh Tu Collection
 
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS method.pptx
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS  method.pptxADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS  method.pptx
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS method.pptxAKSHAYMAGAR17
 
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAY
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAYSOCIAL JUSTICE LESSON ON CATCH UP FRIDAY
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAYGloriaRamos83
 
Routes of Drug Administrations PPT..pptx
Routes of Drug Administrations PPT..pptxRoutes of Drug Administrations PPT..pptx
Routes of Drug Administrations PPT..pptxRenuka N Sunagad
 
Plant Genetic Resources, Germplasm, gene pool - Copy.pptx
Plant Genetic Resources, Germplasm, gene pool - Copy.pptxPlant Genetic Resources, Germplasm, gene pool - Copy.pptx
Plant Genetic Resources, Germplasm, gene pool - Copy.pptxAKSHAYMAGAR17
 
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdfAynouraHamidova
 
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...MohonDas
 
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...Nguyen Thanh Tu Collection
 
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024avesmalik2
 
2.22.24 Black Nationalism and the Nation of Islam.pptx
2.22.24 Black Nationalism and the Nation of Islam.pptx2.22.24 Black Nationalism and the Nation of Islam.pptx
2.22.24 Black Nationalism and the Nation of Islam.pptxMaryPotorti1
 
Nzinga Kika - The story of the queen
Nzinga Kika    -  The story of the queenNzinga Kika    -  The story of the queen
Nzinga Kika - The story of the queenDeanAmory1
 
DISCOURSE: TEXT AS CONNECTED DISCOURSE
DISCOURSE:   TEXT AS CONNECTED DISCOURSEDISCOURSE:   TEXT AS CONNECTED DISCOURSE
DISCOURSE: TEXT AS CONNECTED DISCOURSEMYDA ANGELICA SUAN
 
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...EduSkills OECD
 
2.20.24 Asian Americans and the Myth of the Model Minority.pptx
2.20.24 Asian Americans and the Myth of the Model Minority.pptx2.20.24 Asian Americans and the Myth of the Model Minority.pptx
2.20.24 Asian Americans and the Myth of the Model Minority.pptxMaryPotorti1
 
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptx
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptxPractical Research 1: Qualitative Research and Its Importance in Daily Life.pptx
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptxKatherine Villaluna
 
ACTIVIDAD DE CLASE No 1 sopa de letras.docx
ACTIVIDAD DE CLASE No 1 sopa de letras.docxACTIVIDAD DE CLASE No 1 sopa de letras.docx
ACTIVIDAD DE CLASE No 1 sopa de letras.docxMaria Lucia Céspedes
 
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdf
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdfA LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdf
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdfDr.M.Geethavani
 
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...Katherine Villaluna
 
ICSE English Literature Class X Handwritten Notes
ICSE English Literature Class X Handwritten NotesICSE English Literature Class X Handwritten Notes
ICSE English Literature Class X Handwritten NotesGauri S
 
BTKi in Treatment Of Chronic Lymphocytic Leukemia
BTKi in Treatment Of Chronic Lymphocytic LeukemiaBTKi in Treatment Of Chronic Lymphocytic Leukemia
BTKi in Treatment Of Chronic Lymphocytic LeukemiaFaheema Hasan
 

Recently uploaded (20)

BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...
BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...
BÀI TẬP BỔ TRỢ 4 KĨ NĂNG TIẾNG ANH LỚP 8 - HK2 - GLOBAL SUCCESS - NĂM HỌC 202...
 
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS method.pptx
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS  method.pptxADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS  method.pptx
ADAPTABILITY, Types of Adaptability AND STABILITY ANALYSIS method.pptx
 
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAY
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAYSOCIAL JUSTICE LESSON ON CATCH UP FRIDAY
SOCIAL JUSTICE LESSON ON CATCH UP FRIDAY
 
Routes of Drug Administrations PPT..pptx
Routes of Drug Administrations PPT..pptxRoutes of Drug Administrations PPT..pptx
Routes of Drug Administrations PPT..pptx
 
Plant Genetic Resources, Germplasm, gene pool - Copy.pptx
Plant Genetic Resources, Germplasm, gene pool - Copy.pptxPlant Genetic Resources, Germplasm, gene pool - Copy.pptx
Plant Genetic Resources, Germplasm, gene pool - Copy.pptx
 
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf
11 CI SINIF SINAQLARI - 1-2023-Aynura-Hamidova.pdf
 
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...
BEZA or Bangladesh Economic Zone Authority recruitment exam question solution...
 
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...
GIÁO ÁN TIẾNG ANH GLOBAL SUCCESS LỚP 11 (CẢ NĂM) THEO CÔNG VĂN 5512 (2 CỘT) N...
 
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024
VPEC BROUCHER FOR ALL COURSES UPDATED FEB 2024
 
2.22.24 Black Nationalism and the Nation of Islam.pptx
2.22.24 Black Nationalism and the Nation of Islam.pptx2.22.24 Black Nationalism and the Nation of Islam.pptx
2.22.24 Black Nationalism and the Nation of Islam.pptx
 
Nzinga Kika - The story of the queen
Nzinga Kika    -  The story of the queenNzinga Kika    -  The story of the queen
Nzinga Kika - The story of the queen
 
DISCOURSE: TEXT AS CONNECTED DISCOURSE
DISCOURSE:   TEXT AS CONNECTED DISCOURSEDISCOURSE:   TEXT AS CONNECTED DISCOURSE
DISCOURSE: TEXT AS CONNECTED DISCOURSE
 
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...
Andreas Schleicher - 20 Feb 2024 - How pop music, podcasts, and Tik Tok are i...
 
2.20.24 Asian Americans and the Myth of the Model Minority.pptx
2.20.24 Asian Americans and the Myth of the Model Minority.pptx2.20.24 Asian Americans and the Myth of the Model Minority.pptx
2.20.24 Asian Americans and the Myth of the Model Minority.pptx
 
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptx
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptxPractical Research 1: Qualitative Research and Its Importance in Daily Life.pptx
Practical Research 1: Qualitative Research and Its Importance in Daily Life.pptx
 
ACTIVIDAD DE CLASE No 1 sopa de letras.docx
ACTIVIDAD DE CLASE No 1 sopa de letras.docxACTIVIDAD DE CLASE No 1 sopa de letras.docx
ACTIVIDAD DE CLASE No 1 sopa de letras.docx
 
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdf
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdfA LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdf
A LABORATORY MANUAL FOR ORGANIC CHEMISTRY.pdf
 
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...
Practical Research 1, Lesson 5: DESIGNING A RESEARCH PROJECT RELATED TO DAILY...
 
ICSE English Literature Class X Handwritten Notes
ICSE English Literature Class X Handwritten NotesICSE English Literature Class X Handwritten Notes
ICSE English Literature Class X Handwritten Notes
 
BTKi in Treatment Of Chronic Lymphocytic Leukemia
BTKi in Treatment Of Chronic Lymphocytic LeukemiaBTKi in Treatment Of Chronic Lymphocytic Leukemia
BTKi in Treatment Of Chronic Lymphocytic Leukemia
 

Output Devices

  • 1. L E C T U R E 6 D e c e m b e r , 2 0 1 8 IT in Business - I
  • 2. Output Devices Monitors CRT & LCD Printers Impact Printers Non-impact Printers Plotters Other Output Devices
  • 3. Monitors  A monitor is a peripheral device which displays computer output on a screen.  Screen output is referred to as soft copy.  Types of monitors:  Cathode-ray tube (CRT)  Liquid Crystal Display (LCD or flat-panel)  Light-emitting Diode (LED) 3 CRT LCD
  • 4. Monitors - CRT Monitors • In CRT monitors, electrons are fired at phosphor dots on the screen. • The dots are grouped into pixels, which glow when struck by electrons. • In color CRTs, each pixel contains a red, green, and blue dot. • These glow at varying intensities to produce color images.
  • 6. Monitors - Flat-Panel Monitors • Most flat-panel monitors use Liquid Crystal Display (LCD) technology. • Passive matrix LCD uses a transistor for each row and column of pixels. The color displayed by a pixel is determined by the electricity coming from the transistor. • Active matrix LCD uses a transistor for each pixel on the screen. • Thin-film transistor (TFT) displays use multiple transistors for each pixel. • TV sets are CRTs and many desktop monitors use this technology • LCD is primarily used for laptops and other portable devices
  • 7. Flat-panel monitors take up less desk space.
  • 8. Monitors - Light-emitting Diode (LED)  Less space  Lighter  Very expensive  Provide higher contrast and better viewing angles than LCD monitor
  • 9. Monitors - Comparing Monitors When comparing monitors, consider four features: • Size • Resolution • Refresh rate • Dot pitch
  • 10. Comparing Monitors - Size  Screen size – The diagonal measurement of the screen surface in inches (15, 17, 19, 21) The diagonal size (often 15”)
  • 11. Comparing Monitors - Resolution • Resolution is the number of pixels on the screen, expressed as a matrix (such as 600x800). • It is the image sharpness of a display screen. • It is expressed as a matrix. • A resolution of 640x480 means there are 640 horizontal pixels and 480 vertical pixels. • Most monitors provide the resolution 640x480, 800x600 and 1024x768
  • 12. Resolution (image sharpness) is important. (Especially for graphics, page layout, and CAD)
  • 13. Comparing Monitors - Refresh Rate • Refresh rate – The speed at which the screen is redrawn (refreshed). • Refresh rate is the number of times each second that the electron guns scan the screen's pixels. • Refresh rate is important because phosphor dots fade quickly after the electron gun charges them with electrons. • Refresh rate is measured in Hertz (Hz), or cycles per second.
  • 14. Fast scanning = Quick refresh (less flicker)
  • 15. Comparing Monitors - Dot Pitch • The distance between the phosphorus dots create a single pixel is called dot pitch. • Dot pitch is the distance between the like-colored phosphor dots of adjacent pixels. • In other words, if you measure the distance between the red dots of two adjacent pixels, you are measuring the monitor’s dot pitch. • In color monitors, three dots (red, green, and blue) comprise each pixel. • Look for a dot pitch no greater than .28 millimeter.
  • 16. R + BB + G R + G R + B + G Phosphor Dot Color Mixing
  • 18. Printers  A printer is a peripheral device that produces a physical copy or hard copy of the computer’s output. 18
  • 19. Overview of Printers Categorizing Printers  Printers fall into two categories: 1. Impact Printers 2. Non Impact Printers  Impact printers creates an image by using pins or hammers to press an inked ribbon against the paper.  A simple example of impact printer is a type-writer, which uses small hammers to strike the ribbon.  Each hammer is embossed with the shape of a letter, number or symbol; that shape is transferred through the inked ribbon onto the paper, creating a printed character.  The most common type of impact printer is the “dot matrix printer”.  Another example of impact printer is line printers
  • 20. Overview of Printers - Categorizing Printers  Printers fall into two categories:  Non-impact printer prints character and graphics on a piece of paper without striking the paper.  Non-impact printers use different methods to place ink (or another substance) on the page.  Ink jet printers, for example, use tiny nozzles to spray droplets of ink onto the page.  Laser printers work like photocopiers, using heat to bond microscopic particles of dry toner to specific parts of the page.
  • 21. Overview of Printers - Evaluating Printers  When evaluating printers, consider four criteria:  Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 600 dpi.  Speed – Measured in pages per minute (ppm) or  characters per second (cps).  Initial cost – Consumer printers cost $250 or less, but  professional printers can cost thousands of dollars.  Cost of operation – This refers to the cost of supplies used by the printer.
  • 22. Dot Matrix Printers - How Do Dot Matrix Printers Work?  A dot matrix printer is the example of impact printer  A dot matrix creates an image by using a mechanism called a “print head”, which contains a cluster (or matrix) of short pins arranged in one or more columns.  On receiving instructions from PC, the printer can push any of the pins out in any combination.  The protruding pins’ end strike a ribbon, which is held between the print head and paper.  When the pins strike the ribbon, they press ink from the ribbon onto the paper.
  • 24. Dot Matrix Printers - Performance  Lower-resolution dot matrix printers use nine pins. Higher-resolution models have 24 pins.  Speed is measured in characters per second (cps). Some dot matrix printers print 500 cps.
  • 25. Ink Jet Printers – How Do Ink Jet Printers Work?  Ink jet printers are an example of non-impact printers.  The printer sprays tiny droplets of ink onto the paper.  Ink jet printers are available for color and black-and-white printing.  Color ink jet printers have four ink nozzles: cyan (blue), magenta (red), yellow and black. (CMYK printers)  Printed color is the result of light bouncing off the paper, not color transmitted directly from a light source. • A stepper motor moves the print head assembly (print head and ink cartridges) back and forth across the paper.
  • 27. Ink Jet Printers - Performance  Ink jet printers offer speeds of (2 – 4 pages per minute ppm) and resolution (300 – 600 dots per inch dpi), comparable to low-end laser printers.  Ink jet printers are inexpensive and have low operating costs.
  • 28. Laser Printers – How Do Laser Printers Work?  Laser printers are non-impact printers with a laser at the heart of these printers. • Just as the electron gun in a monitor can target any pixel, the laser in a laser printer can aim at any point on a drum,creating an electrical charge.  A CPU and memory are built into the printer to interpret the data that it received from the computer and to control the laser.  They use heat and pressure to bond particles of toner to paper.  Laser printers are available for color and black-and-white printing.
  • 30. Laser Printers - Performance  Laser printers provide resolutions from 300 – 1200 dpi and higher.  Black-and-white laser printers usually produce 4 – 16 ppm.  Laser printers produce higher-quality print than ink jet printers, but are more expensive.
  • 31. Other Types of Printers Photo Printers • Photo printers are specialized, small-format printers that print digital photographs. • Photo printers are fairly slow, and can be more expensive to operate • Many photo printers use ink jet technology. • One advantage of the newest photo printers is that they don’t need a computer. These printers feature slots for memory cards used by many digital cameras. Photo printers are popular among digital camera users
  • 32. Other Types of Printers  A multifunction peripheral (MFP) is a single device that prints, scans, copies, and in some cases, faxes  Sometimes called an all-in-one device
  • 33. Other Types of Printers  A thermal printer generates images by pushing electrically heated pins against the heat-sensitive paper 33 Thermal wax-transfer printer Dye-sublimation printer
  • 34. Plotters  A plotter is specialized output device. It is designed to produce image-quality graphic in a variety of colors and size.  Plotters are used to create maps, architectural drawings and 3-D illustration.  A plotter works by drawing lines on paper using pens held in mechanical arm
  • 35. Drum Plotter Flat-bed Plotter Ink jet Plotter cutting Plotter
  • 36. Other Output Devices  Headphones are speakers that cover your head or are placed outside of the ear  Earbuds (also called earphones) rest inside the ear canal 36
  • 37. Other Output Devices  A data projector or PC projector is a device that takes the text and images displaying on a computer screen and projects them on a larger screen  Many PC projectors provide the same resolutions and color levels as high-quality monitors.  Digital light processing (DLP) projectors use a microchip containing tiny mirrors to produce very sharp, bright images.