Output Devices आउटपुट डिवाइस Types, Examples & CPCT Notes

Output devices are hardware components that present the processed data or information from a computer to the user.

Output Devices (आउटपुट डिवाइस) कंप्यूटर के वे hardware components हैं जो computer द्वारा process किए गए data या information को उपयोगकर्ता तक पहुँचाते हैं।

Basic Computer Cycle

Input → Processing → Output → Storage

सरल शब्दों में:

Input दिया → Computer ने Process किया → Output प्राप्त हुआ

उदाहरण:

यदि आप calculator में 25 + 15 enter करते हैं:

Input: 25 + 15

Processing: Addition

Output: 40

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1. Monitor – मॉनिटर

A Monitor is a visual output device that displays text, images, graphics and videos.

Monitor एक visual output device है जो text, images, graphics और videos को screen पर प्रदर्शित करता है।

It is also called a Visual Display Unit (VDU).

Common Types

CRT

LCD

LED

OLED

Important CPCT Point

Monitor = Soft Copy Output

The information displayed on a screen is generally called soft copy.

🧠 Trick

Monitor → Screen → Soft Copy

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2. Printer – प्रिंटर

A Printer produces a physical copy of text, images or graphics on paper.

Printer computer के digital data को paper पर print करके physical copy प्रदान करता है।

The printed result is called a Hard Copy.

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Types of Printers

Printers are broadly classified into:

A. Impact Printers

Impact printers produce output by physically striking an inked ribbon against paper.

Impact printers में printing के लिए mechanical impact/striking का उपयोग होता है।

Examples

Dot Matrix Printer

Daisy Wheel Printer

Line Printer

CPCT Trick

Impact = Physical Contact

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B. Non-Impact Printers

Non-impact printers do not require mechanical striking against paper.

Non-impact printers में paper पर printing के लिए mechanical striking नहीं होती।

Examples

Inkjet Printer

Laser Printer

Thermal Printer

🧠 Trick

Non-Impact = No Striking

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3. Dot Matrix Printer – डॉट मैट्रिक्स प्रिंटर

A Dot Matrix Printer is an impact printer that creates characters using a matrix of dots.

Dot Matrix एक Impact Printer है जो dots की सहायता से characters और images print करता है।

Important Features

Impact printer

Uses print head and ribbon

Produces relatively noisy output

Can be used for multipart forms

CPCT Question

Dot Matrix belongs to which category?

Answer: Impact Printer

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4. Inkjet Printer – इंकजेट प्रिंटर

An Inkjet Printer produces output by spraying tiny droplets of ink onto paper.

Inkjet printer paper पर ink की बहुत छोटी droplets spray करके printing करता है।

Features

Non-impact printer

Good for color printing

Suitable for photos and home use

Relatively quiet

CPCT Trick

Inkjet → Ink Droplets

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5. Laser Printer – लेजर प्रिंटर

A Laser Printer uses a laser-based electrophotographic process and toner to produce printed output.

Laser printer laser-based printing process और toner का उपयोग करके output तैयार करता है।

Features

Non-impact printer

High printing speed

Good quality text

Commonly used in offices

CPCT Trick

Laser → Toner → Fast Printing

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6. Thermal Printer – थर्मल प्रिंटर

A Thermal Printer uses heat to create an image on heat-sensitive paper.

Thermal printer heat-sensitive paper पर heat का उपयोग करके print करता है।

Common Uses

ATM receipts

POS billing

Retail receipts

Tickets

CPCT Trick

Thermal = Heat

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7. Plotter – प्लॉटर

A Plotter is an output device designed to produce large, precise drawings and graphics.

Plotter का उपयोग बड़े आकार के precise drawings, maps, engineering designs और CAD drawings के लिए किया जाता है।

Applications

Engineering drawings

Architecture

Maps

CAD

Large-format graphics

CPCT Trick

Plotter = Large Engineering Drawings

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8. Speaker – स्पीकर

Speakers produce audio output from a computer.

Speaker computer से प्राप्त audio या sound को सुनने योग्य बनाता है।

Uses

Music

Movies

Online classes

Video conferencing

Alerts and notifications

CPCT Trick

Speaker = Sound Output

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9. Headphones – हेडफोन

Headphones are audio output devices that allow a user to listen to sound privately.

Headphones audio output को सीधे user तक पहुँचाते हैं और private listening के लिए उपयोग किए जाते हैं।

Examples

Wired Headphones

Wireless Headphones

Earphones/Earbuds

CPCT Trick:

Headphones = Personal Audio Output

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10. Projector – प्रोजेक्टर

A Projector displays computer-generated images or video on a large screen or projection surface.

Projector computer की image या video को बड़े screen या projection surface पर display करता है।

Uses

Classrooms

Presentations

Meetings

Training

Home Theatre

CPCT Trick

Projector = Large Screen Display

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11. Braille Display – ब्रेल डिस्प्ले

A Refreshable Braille Display is an assistive output device that converts digital text into tactile Braille characters.

Refreshable Braille Display digital text को touch-based Braille characters के रूप में प्रस्तुत करता है।

Uses

Accessibility

Reading digital text

Computer access for visually impaired users

CPCT Trick

Braille Display = Tactile Output

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12. Soft Copy vs Hard Copy

This is a very important CPCT concept.

Soft Copy – सॉफ्ट कॉपी

Information displayed electronically on a screen is generally called a soft copy.

Screen पर दिखाई देने वाला digital output सामान्यतः Soft Copy कहलाता है।

Examples

Monitor display

Digital document

PDF viewed on screen

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Hard Copy – हार्ड कॉपी

Information printed on a physical medium such as paper is called a hard copy.

Paper पर printed physical output को Hard Copy कहते हैं।

Examples

Printed document

Printed photograph

Printed report

🧠 Super Trick

Monitor → Soft Copy

Printer → Hard Copy

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📊 Output Devices – Quick Revision

Output Device Main Function Important Point

Monitor Visual output Soft Copy

Printer Printed output Hard Copy

Dot Matrix Dot-based printing Impact

Inkjet Ink droplets Non-Impact

Laser Printer Toner-based printing Fast

Thermal Printer Heat-based printing Receipts

Plotter Large drawings CAD/Maps

Speaker Sound Audio Output

Headphones Personal audio Sound

Projector Large display Presentation

Braille Display Tactile text Accessibility

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🧠 CPCT Memory Tricks

Output Devices by Function

Monitor → Visual

Printer → Paper

Speaker → Sound

Projector → Large Display

Plotter → Engineering Drawing

Braille Display → Tactile

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Printer Trick

Impact Printers

D → D → L

Dot Matrix → Daisy Wheel → Line Printer

Non-Impact Printers

I → L → T

Inkjet → Laser → Thermal

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🔥 Most Important CPCT Differences

Impact vs Non-Impact Printer

Impact Non-Impact

Mechanical striking involved No mechanical striking

Generally noisier Generally quieter

Dot Matrix Inkjet

Daisy Wheel Laser

Line Printer Thermal

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Soft Copy vs Hard Copy

Soft Copy Hard Copy

Digital/Electronic Physical

Viewed on screen Printed on paper

Monitor Printer

Easily edited Physical document

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🎯 Important CPCT Questions

Q1. Which device displays information visually?

Answer: Monitor

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Q2. Which device produces a hard copy?

Answer: Printer

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Q3. Which of the following is an impact printer?

A) Laser

B) Inkjet

C) Dot Matrix

D) Thermal

Answer: C) Dot Matrix

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Q4. Which printer uses toner?

Answer: Laser Printer

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Q5. Which printer uses ink droplets?

Answer: Inkjet Printer

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Q6. Which printer is commonly used for receipts?

Answer: Thermal Printer

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Q7. Which device is used for large engineering drawings?

Answer: Plotter

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Q8. Which device provides audio output?

Answer: Speaker

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Q9. Which device is commonly used to display a presentation to a large audience?

Answer: Projector

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Q10. What is the output displayed on a monitor generally called?

Answer: Soft Copy

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Q11. What is a printed document called?

Answer: Hard Copy

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Q12. Which output device provides tactile Braille information?

Answer: Refreshable Braille Display

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⭐ CPCT One-Minute Revision

Remember:

Monitor → Soft Copy

Printer → Hard Copy

Speaker → Sound

Plotter → Large Drawing

Projector → Large Screen

Braille Display → Tactile

Printer Formula

Impact → Dot Matrix

Non-Impact → Inkjet + Laser + Thermal

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📌 Important Exam Facts

1. Monitor is a visual output device.

2. Printer produces hard copy.

3. Dot Matrix is an impact printer.

4. Inkjet is a non-impact printer.

5. Laser Printer uses toner.

6. Thermal Printer uses heat-sensitive printing technology.

7. Plotter is used for large and precise drawings.

8. Speaker provides audio output.

9. Projector provides large-screen visual output.

10. Braille Display provides tactile output.

11. Monitor output is generally considered soft copy.

12. Printed output is hard copy.

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🎯 Final Memory Formula

M → P → S → P → B

Monitor → Printer → Speaker → Projector → Braille

Visual → Paper → Sound → Large Display → Tactile

And for printers:

D → I → L → T

Dot Matrix → Inkjet → Laser → Thermal

Remember:

> Dot Matrix = Impact

Inkjet, Laser, Thermal = Non-Impact

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Conclusion – निष्कर्ष

Output devices play an important role in presenting the results of computer processing to users. Different output devices are designed for different forms of information such as visual, printed, audio, large-format and tactile output.

Output Devices कंप्यूटर processing के परिणाम को उपयोगकर्ता तक पहुँचाने का महत्वपूर्ण माध्यम हैं। CPCT और अन्य competitive examinations के लिए Monitor, Printer, Dot Matrix, Inkjet, Laser, Thermal Printer, Plotter, Speaker, Projector तथा Braille Display के functions और differences को विशेष रूप से याद रखना चाहिए।

Quick Revision

Monitor = Soft Copy

Printer = Hard Copy

Dot Matrix = Impact

Laser = Toner

Inkjet = Ink Droplets

Thermal = Heat

Plotter = Large Drawing

Speaker = Sound

Projector = Large Display

Braille = Tactile Output

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