What is an output device

11.11.202321.08.2022 admin 0 Comments

What is an output device

Output device

An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. For example, the image shows an inkjet printer, an output device that make a hard copy of anything shown on the monitor. Monitors and printers are two of the most commonly used output devices used with a computer.

Types of output devices

The following list contains many different examples of output devices. For further information about the output device, select any of the listings with blue text.

What are the output devices of my computer?

Every computer has a monitor, an audio adapter, and a GPU (either onboard or discrete). Each of these is an output device. A printer is also very commonly used with computers. Depending on the type of computer and how the computer is used, other output devices may be used with a computer. The best method of determining all of the output devices your computer has is to go through the list above.

Why do computers need output devices?

A computer can still work without an output device. However, you’d have no way of determining what the computer is doing. Using an output device, you can view and get the results of input from a computer.

How does an output device work?

An output device works by receiving a signal from the computer and using that signal to perform a task to display the output. For example, below is a basic list of the steps of how an output device works.

If no output device was connected to the computer and it was functional, you could still type «H» on the keyboard, and it would still be processed. However, you’d be unable to see what happened or confirm the input with no output device.

An output device does not send anything back to the computer. So, in the case of the monitor, a computer sends a signal without knowing if it was received. If an output device sends information back to the computer, it’s considered an input/output device.

What are Different Output Devices?

Any peripheral that accepts data from a computer and prints, projects, or reproduces it is known as an output device. The output may be audio, video, hard copy – printed paper, etc. Output devices convert the computer data to human understandable form.
We give input to the computer using input devices and the computer performs operations on the data and displays the output to the user using the output device.

Output Devices

The various output devices are:

1. Monitor

A computer’s principal output device is a monitor, often known as a Visual Display Unit (VDU). It displays the processed data like text, images, videos, audios, etc. It makes images by arranging microscopic dots in a rectangular pattern, known as pixels. The sharpness of an image is determined by the number of pixels. There are two types of monitor viewing screens:

(1) Cathode-Ray Tube (CRT): This type of monitor is based on a cathode ray tube. In which the cathode ray tube generates a beam of electrons with the help of electron guns they strike on the inner surface of phosphorescent of the screen to generate images. The CRT monitor holds millions of phosphorus dotes in three different colors, i.e., red, blue, and green. These dots glow when the beam struck on them and create an image. The main parts of the CRT monitor are the electron gun, fluorescent screen, glass envelope, deflection plate assembly, and base.

Characteristics of Monitor:

(2) Display on a Flat Panel Monitor with a Cathode-Ray Tube (CRT): A flat-panel display is a type of video display with less volume, weight, and power consumption than a CRT. They can be put on the wrist or hang on the wall. Calculators, video games, monitors, laptop computers, and graphical displays all use flat-panel displays.

(3) Plasma Monitor: It is also a flat panel display but it is based on plasma display technology. In a plasma monitor, a small cell is present in between two glass surfaces and these cells contain a solution of noble gases and mercury. So when the electricity supply on the gas present in the cell converts into plasma and produces UV light that creates an image. It is much better than an LCD monitor. The resolution of this monitor is also high up to 1920 x 1920. It has a good contrast ratio, high refresh rate, etc.

2. Printer

Printers are information output devices that allow you to print data on paper. Or in other words, it is an output device that creates a hard copy of the processed data or information. Printers are divided into two categories:

(1) Impact Printer: In impact printers, characters are printed on the ribbon, which is then smashed on the paper. Or we can say that such type of printer uses a print head or hammer to print the data on the paper. Here to print the paper the hammer or print head strikes an ink ribbon against the paper and the character starts printing. Some of the types of impact printers are:

Impact printers have the following characteristics:

(2) Non-Impact Printers: Non-impact printers print characters without the use of a ribbon. These printers are often known as Page Printers because they print a full page at a time. Some of the types of non-impact printers are:

Non-impact printers have the following characteristics:

3. Plotter

A plotter is a device that prints high-quality graphics in a variety of color formats. It works in a similar way to a printer, although it has more advanced features. It is used to print large maps, architectural drawings, large-format printing, and create pictures, 3D postcards, advertising signs, charts, and various designs of the internal structure of building machines, as well as create pictures, 3D postcards, advertising signs, charts, and various designs of the internal structure of building machines.

Characteristics of Plotter:

4. Projector

A projector is a device that allows users to project their output onto a large area, such as a screen or a wall. It can be used to project the output of a computer and other devices onto a screen. It magnifies texts, photos, and movies using light and lenses. As a result, it’s an excellent output device for giving presentations or teaching big groups of people.

Characteristics of Projector:

5. Speakers

Speakers are connected to computers to allow sound to be output. For the working of speakers, sound cards are required. From simple two-speaker output devices to surround-sound multi-channel sets, speakers come in a variety of shapes and sizes. They take audio input from the computer’s sound card and output sound waves as audio output.

Characteristics of Speakers:

6. Headphones

To hear the sound, use earbuds with your PC, laptop, or smartphone. It enables you to hear the sound without causing any inconvenience to others. To translate electronic signals into sounds without causing inconvenience to others. They can be wired or wireless and can be connected to computers, laptops, mobile phones, etc. They are connected with the devices via Bluetooth.

Characteristics of Headphones:

7. Sound Card

Sound cards are computer output devices that are inserted into the computer. A sound card, either external or internal, is required to produce sound on any computer (built-in). An external sound card enables for better overall sound generation and is required for wide and clear sound recording, as well as sound without noise and interference.

Characteristics of Sound Card:

8. Video Card

An extension card via which a computer can transfer graphical data to a video display device like a TV, projector, or monitor. It processes photos and video, as well as other functions that the CPU generally does. As they have a good processing capability and video RAM, Gamers utilize video cards.

Characteristics of Video Card:

9. Speech synthesizer

A speech synthesizer is a computerized device that takes in data, interprets it, and generates audible words. It might be a computer card, a box connected by a cable, or software that works with the computer’s sound card.

Characteristics of speech synthesizer:

10. GPS

The Global Positioning System (GPS) is a radio-based satellite navigation system that uses radio signals to pinpoint a specific position. The sender sends a radio signal to satellites, which collect data such as time, location, speed, and other variables and deliver it to the reception computer for analysis. Because this processed data can be evaluated to obtain information, it is considered as an output device.

Characteristics of GPS:

Sample Questions

Question 1. Make a list of the disadvantages of using a CRT monitor.

Solution:

The following are some of the downsides of CRT:

Question 2. ________ is a device that gives us the hard copy as output.

Solution:

Question 3. Define hard & soft copy.

Solution:

The term “hard copy” refers to something that is printed on paper, or any printing material. The unprinted e-copy of the data that is saved in digital form in the system is known as soft copy.

Question 4. ____________ is a type of video display with less volume, weight, and power consumption than a CRT.

Solution:

Question 5. Name a device that allows users to project their output onto a large area, such as a screen or a wall.

Output Devices

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Output devices

Computer output devices receive information from the computer and carry data that has been processed by the computer to the user. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. The devices are usually used for display, projection, or for physical reproduction. Monitors and printers are two of the most commonly-known output devices used with a computer.

Computer output devices are all peripheral hardware and are connected to a computer by cables, or by wireless networking.

Reasons for Having an Output Device

A computer can still function without an output device. However, without an output device, there’s no way to determine what the computer is doing. There is no indicator of errors, nor of the need for additional input. For example, if you detach your monitor from your computer, the computer will still function, but it’s not going to be very helpful.

Examples of Output Devices

Monitor – This is the most common computer output device. It creates a visual display by the use of which users can view processed data. Monitors come in various sizes and resolutions.

Common Types of Monitors

All monitors depend on a video card, which is positioned either on the computer motherboard or in a special expansion slot. The video card sorts out the computer data into image details that the monitors can then show.

Printer – this device generates a hard copy version of processed data, like documents and photographs. The computer transmits the image data to the printer, which then physically recreates the image, typically on paper.

Types of Printers

Speakers – speakers are attached to computers to facilitate the output of sound; sound cards are required in the computer for speakers to function. The different kinds of speakers range from simple, two-speaker output devices right the way up to surround-sound multi-channel units.

Headset – this is a combination of speakers and a microphone. It is mostly used by gamers and is also a great tool for communicating with family and friends over the internet using some VOIP program or other.

Projector – this is a display device that projects a computer-created image onto another surface: usually some sort of whiteboard or wall. The computer transmits the image data to its video card, which then sends the video image to the projector. It is most often used for presentations, or for viewing videos.

Plotter – this generates a hard copy of a digitally depicted design. The design is sent to the plotter through a graphics card, and the design is formed by using a pen. It is generally used with engineering applications and essentially draws a given image using a series of straight lines.

Input/Output Devices

Input/Output devices don’t only produce output, but can also be used as storage and input devices. The computer transmits data to the drive, where it is saved and can be later accessed.

Examples of I/O devices are CD drives, DVD drives, USB drives, hard disk drives (HDDs), and floppy disk drives.

CDs and DVDs are two kinds of optical disc that save data in a digital format. Data is written onto the disc using a laser writer that embeds the data directly into the disc’s coating.

A floppy disk is a magnetic storage device. A layer of a magnetised material is placed within a proactive plastic casing. The computer then embeds the data into the magnetized material, by using a writing head.

What are the Output Devices of Computer and 10 Examples

The knowledge of computer output devices examples has become very important because everywhere output devices being used, whether it is a railway station, bank, shopping malls many. Here you will know the answer to “ What are 10 output devices examples“.

In short, a computer is a collection of the Input Devices, Processing Devices, and Output Devices of computer which can perform any type of calculation. We have explained the input devices and their examples in a previous post.

In today’s article, you will know the meaning and examples of output devices of computer.

Meaning and Examples of Output Devices

Output devices are the electronic parts of the computer. A computer’s output devices are those part of computer hardware equipment equipment that converts the information into readable form. It can be text, graphics, audio, or video.

Output devices examples can be defined as “when the computer receives various types of data and instructions through input devices like a keyboard (by typing) and mouse (by cursor and clicking), etc. and processes it and gives results through the output devices like Monitor and printer, etc”.

Output devices show the results of data processed in a computer. Monitor and printer are two mainly used output devices examples. These outputs take the device into machine signals and convert them into human language. Let’s see other output devices.