Friday , December 6 2019
Home / DCA / About output devices of computer

About output devices of computer

About output devices of computer

The devices which are responsible for display or print the processed data on screen or paper i.e. called output devices. Output device is any device used to send data from a computer to another device or user.

Most computer data output that is meant for humans is in the form of audio or video. Thus, most output devices used by humans are in these categories. Output devices allow computers to communicate with users and with other devices. This can include peripherals, which may be used for input/output (I/O) purposes, like network interface cards (NICs), modems, IR ports, RFID systems and wireless networking devices, as well as mechanical output devices, like solenoids, motors and other electromagnetically devices. output device is any piece of computer hardware equipment which converts the electronically generated information into human-readable

Read:- Memory Management in Operating System

About output devices of computer

These are as follows:-

Monitor:-

It is VDU (Visual Display Unit) or SDU (Standard Display Unit) commonly called as monitor and used as main output device of a computer system. It consists of a Cathode Ray Tube (CRT), which displays characters as an output. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon screen resolution means the number of pixels.

Classification Of Monitors:-

On the basis of Colour Mode:-

Monochrome that means black and white (B/W) Colour

On the basis of Shape & Size:-

  • LCD (Liquid Crystal Display)
  • Plasma
  • CRT

Liquid Crystal Display (LCD):-

It is basically consist of a layer of liquid crystal, sandwiched between two polarizing plates. The image pointing operation in LCD panels is different forms that of the CRT through both are of raster scans display type. The modern technology has gifted us with LCD panel, Plasma Display panel, LED panel and thin CRT. These display devices are smaller, lighter and specifically thinner than the conventional CRT and thus as termed as Flat Panel Display (FPD).

Plasma Panel:-

In plasma panel used neon gas as sandwiched between two flat plasma glasses. Research is so on to eliminate the color display limitation of such device at low production cost.

Note:- Monitor is the only a way that display the data after processing into soft mode.

The most common types of CRT display technology:

Raster Scan Display:-

In raster scan display method, the electron beam sweeps the entire screen in the same way you would write full page of text in a note book (i.e. in word pad, notepad, etc.) word-by-word or character-by-character from left to right or top to bottom.

About output devices of computer[Fig: Shows Schematic Diagram of Raster Scan CRT Monitor.]

The different kinds of monitors depending upon the number of pixels that means the resolution. It can be classified as follows:-

About output devices of computer

Printers:-

The printer is an most important accessories of any computer system, specially for graphics system. It is a portable device that used to convert a soft copy into hard copy that means the documents of computer is a soft copy and we made changes into it easily and its paper mode is called hard copy, so we cannot made changes easily.

The printers are divided into two major categories as follows:-

Impact Printer:-

These printers have a mechanism whereby formed characters faces are pressed against an inked ribbon onto the paper in order to create an image. Example:- Dot Matrix, Daisy Wheel and Line Printer.

Dot Matrix Printer:-

It is made of separate pin hammers that strike the ribbon against the paper, in computer determined the patterns of dots. This type of printer is usually faster than solid font type, but image quality is not as good.

Dot matrix printers are also called serial printers. The head of dot matrix printer usually has 9 or 24 pins and print 50 to 400 characters per second. Example:- EPSON EX-1000, EPSON LQ-1050, etc.

Non-Impact Printer:-

These printers do not touch the paper against ink ribbon and it is use laser techniques, ink spray, xerographic processes and electro static methods to produce images on paper. Example:- Inkjet, Laser, Plotter, etc.

Inkjet Printer:-

An inkjet printer is a non-impact printer that places extremely small droplets of ink spray onto the paper to create an image. These printers are popular because they less costly but generate attractive graphic output. It spray ink through as many as 64 tiny nozzles and it provides a print quality of around 300 dpi (Dot Per Inch).

Laser Printer:-

It is stand for “Light Amplification by Simulated Emission of Radiation”. It is also non-impact printer that uses technology similar to that of a photocopy machine. A laser beam focused on a positively charged selenium-coated rotating drum. The laser gun removes the positive charge from the drum except for the area to be printed.

In this way, the laser draws the letters and images to be printed. The negatively charged black toner powder 1st adheres to this positive charge on the drum; it is transferred to the rolling white paper. The laser printer is a mainly believable printer. In case of colour laser printer, these processes repeated up to three-times.

Plotters:-

A plotter is a specialized output device that designed to produce high quality graphics in a variety of colours. It produces pictorial output of data, which could range from simple statically histograms, pie charts, advertising banners, etc. and detailed isometric drawings could be generated using plotters.

Although other printers can be used for simple charts, yet plotters produce high quality output that is unmatched. There are two basic types of plotters those that use pens and those that do not. Drum and Flatbed potters use pens, but Electrostatic plotters do not use this.

Sound or Speaker:-

It is also an output device, which is used to listen sound that can be stored on our computer and hard drives (like CD, DVD, Pen Drive, etc). When we want to listen sound that stored on it, at first check the installation of sound driver (i.e. compatible software of sound) and speaker are connected. In order to have high quality audio output, a good quality sound card and good quality speakers are needed.

I hope that you understand my post. if you like this post then share my post, and comment on my post if you have any suggestion or Queries related to About output devices of computer. Thank you!

Check Also

Download And Activate Microsoft Office for lifetime

Download And Activate Microsoft Office for lifetime Microsoft Office is a family of client software, …

54 comments

  1. Woh I like your articles, bookmarked! .

  2. Thanks , I’ve recently been searching for information about this topic for ages and yours is the best I’ve discovered till now. But, what about the conclusion? Are you sure about the source?

  3. Hi! Someone in my Facebook group shared this website with us so I came to give it a look.
    I’m definitely loving the information. I’m book-marking
    and will be tweeting this to my followers! Terrific blog and brilliant design and
    style.

  4. My coder is trying to convince me to move to .net from PHP.
    I have always disliked the idea because of the expenses.
    But he’s tryiong none the less. I’ve been using WordPress on various websites for about a year and am worried about switching to
    another platform. I have heard very good things about blogengine.net.

    Is there a way I can transfer all my wordpress posts
    into it? Any kind of help would be really appreciated!

  5. You actually make it seem really easy with your presentation however I in finding
    this matter to be really one thing that I feel I’d never
    understand. It seems too complex and extremely wide for me.
    I am taking a look ahead on your next post, I’ll try to get the hang of it!

  6. It’s really a great and useful piece of info. I am happy
    that you shared this helpful information with us. Please keep us up to date like this.
    Thank you for sharing.

  7. Magnificent goods from you, man. I’ve be aware your stuff prior to and you are simply
    too excellent. I actually like what you have bought right here, certainly like what you’re
    stating and the way in which by which you are saying it.

    You are making it entertaining and you continue to
    care for to keep it smart. I cant wait to read far more from you.
    This is actually a terrific web site.

  8. Currently it sounds like Expression Engine is the best blogging platform available right now.
    (from what I’ve read) Is that what you’re using on your blog?

  9. Hi there! I just wanted to ask if you ever have any issues with hackers? My last blog (wordpress) was hacked and I ended up losing many months of hard work due to no data backup. Do you have any solutions to stop hackers?|

  10. I’m amazed, I must say. Rarely do I come across a
    blog that’s both equally educative and interesting, and without a doubt, you’ve hit the nail on the
    head. The problem is something not enough men and women are speaking intelligently about.
    I am very happy that I found this during my search for something relating to this.

  11. My coder is trying to convince me to move to .net from PHP.
    I have always disliked the idea because of the expenses.
    But he’s tryiong none the less. I’ve been using Movable-type on various websites
    for about a year and am nervous about switching to another platform.
    I have heard excellent things about blogengine.net.
    Is there a way I can transfer all my wordpress content into it?
    Any help would be really appreciated!

  12. Hi, I do think your website may be having web browser compatibility problems.
    Whenever I look at your blog in Safari, it looks fine
    however when opening in Internet Explorer, it has some overlapping
    issues. I simply wanted to provide you with a quick heads up!
    Aside from that, fantastic blog!

  13. Link exchange is nothing else however it is just placing the
    other person’s web site link on your page at appropriate place and other person will also do same in support
    of you.

  14. Hey There. I discovered your weblog using msn. This is a really well written article.
    I will make sure to bookmark it and come back to learn extra of
    your helpful information. Thanks for the post. I will certainly comeback.

  15. What’s Happening i am new to this, I stumbled upon this I have discovered It absolutely useful and it has helped me out loads. I’m hoping to contribute & help different customers like its helped me. Good job.

  16. This article provides clear idea in support of the new visitors of blogging, that really
    how to do running a blog.

  17. Very good information. Lucky me I recently found
    your website by chance (stumbleupon). I’ve saved as a favorite for
    later!

  18. Good day very nice site!! Man .. Beautiful .. Wonderful ..
    I’ll bookmark your blog and take the feeds also? I’m happy to find numerous useful info right here within the publish, we need develop extra
    strategies on this regard, thank you for sharing.
    . . . . .

  19. I know this site offers quality depending articles and extra stuff,
    is there any other site which presents these kinds of things in quality?

  20. Hi everyone, it’s my first pay a quick visit at this web site,
    and paragraph is truly fruitful in favor of me, keep
    up posting these types of articles or reviews.

  21. What i do not understood is actually how you’re not really a lot more neatly-favored
    than you might be now. You’re very intelligent. You realize therefore significantly in terms of this topic, made me personally believe it from a lot
    of varied angles. Its like men and women aren’t involved unless it is one
    thing to accomplish with Girl gaga! Your personal stuffs
    excellent. Always maintain it up!

  22. I learn from it, how to operate a output device by a user.

  23. I do accept as true with all of the ideas you’ve introduced for your
    post. They are very convincing and will certainly work.
    Still, the posts are too quick for newbies. May just you please lengthen them
    a little from subsequent time? Thank you for the post.

  24. There is definately a lot to learn about this topic. I like all of the points you made.

  25. Woah! I’m really digging the template/theme of this blog. It’s simple, yet effective.
    A lot of times it’s challenging to get that “perfect balance”
    between usability and visual appeal. I must say you’ve done a very good job with
    this. In addition, the blog loads extremely fast for me on Chrome.

    Exceptional Blog!

  26. Nice answer back in return of this matter
    with real arguments and explaining all concerning that.

  27. Howdy, I do believe your website could be having browser compatibility problems.
    When I take a look at your website in Safari, it looks
    fine however, if opening in I.E., it’s got some overlapping issues.
    I merely wanted to give you a quick heads up! Aside from
    that, fantastic website!

  28. Right away I am ready to do my breakfast, later than having my
    breakfast coming again to read additional
    news.

  29. Hello, I enjoy reading all of your article.
    I wanted to write a little comment to support you.

  30. What’s up, the whole thing is going perfectly here and ofcourse every one is sharing
    data, that’s truly fine, keep up writing.

  31. I am no longer certain where you are getting your info, however good topic.

    I needs to spend a while studying much more or figuring out more.

    Thanks for excellent info I was on the lookout for this info for my mission.

  32. Great goods from you, man. I have understand your stuff previous to and you are just too excellent.
    I actually like what you’ve acquired here, really
    like what you are saying and the way in which you say it.
    You make it enjoyable and you still care for to keep it smart.
    I can not wait to read much more from you. This is
    actually a great site.

  33. My partner and I stumbled over here by a different website and thought I may as well check things out.
    I like what I see so now i’m following you. Look forward to checking out your web page for a second time.

  34. Hello! I’ve been reading your site for a while now and finally got the courage to go ahead and give you a shout out from Houston Tx!
    Just wanted to mention keep up the great job!

  35. Today, while I was at work, my sister stole my iPad and tested to
    see if it can survive a 40 foot drop, just so she can be a
    youtube sensation. My apple ipad is now destroyed
    and she has 83 views. I know this is totally off topic but I had to share it with someone!

  36. Hi there, just became alert to your blog through Google, and
    found that it is really informative. I’m gonna watch out for
    brussels. I will be grateful if you continue this in future.

    Numerous people will be benefited from your writing.

    Cheers!

  37. Excellent way of telling, and pleasant paragraph to
    get information on the topic of my presentation subject,
    which i am going to present in institution of higher education.

  38. I like the valuable information you provide in your articles.

    I’ll bookmark your weblog and check again here regularly.
    I am quite certain I will learn a lot of new stuff right here!

    Good luck for the next!

  39. Excellent beat ! I wish to apprentice while you amend your web site, how can i subscribe for a blog site?
    The account aided me a acceptable deal. I had been a little bit acquainted of
    this your broadcast offered bright clear concept

  40. Valuable info. Lucky me I found your site by accident,
    and I’m surprised why this accident didn’t took place in advance!
    I bookmarked it.

  41. This is a topic that’s close to my heart… Cheers!
    Exactly where are your contact details though?

  42. Hi are using WordPress for your site platform? I’m new to the blog
    world but I’m trying to get started and set up my own. Do you need any coding expertise to make your own blog?
    Any help would be greatly appreciated!

  43. My spouse and I absolutely love your blog and find
    almost all of your post’s to be just what I’m looking for.
    Would you offer guest writers to write content
    available for you? I wouldn’t mind creating a post or elaborating on some of the subjects you write concerning
    here. Again, awesome weblog!

  44. I visit everyday some blogs and information sites
    to read articles or reviews, but this web site offers quality based content.

  45. Peculiar article, exactly what I was looking for.

  46. What’s up Dear, are you genuinely visiting this web page regularly, if so afterward you will definitely obtain nice know-how.

  47. You need to be a part of a contest for one of
    the most useful blogs on the internet. I’m going to highly
    recommend this website!

  48. Love this all new LCD Screens !

  49. Pretty nice post. I just stumbled upon your weblog and wished to say that
    I’ve really enjoyed browsing your blog posts. After all I’ll be subscribing for your rss feed and I am hoping you
    write once more soon!

  50. I have fun with, result in I found just what I used to be looking for.

    You’ve ended my four day long hunt! God Bless you man. Have a nice day.
    Bye

  51. Fastidious respond in return of this matter with firm arguments and telling the whole thing regarding that.

  52. Hi there! This is my first comment here so I just wanted to give a quick
    shout out and tell you I truly enjoy reading your blog posts.
    Can you recommend any other blogs/websites/forums that cover the same subjects?
    Thank you!

  53. Howdy just wanted to give you a brief heads up and let
    you know a few of the images aren’t loading properly.

    I’m not sure why but I think its a linking issue.

    I’ve tried it in two different browsers and both show the same results.

  54. I am truly delighted to read this web site posts which includes tons of valuable information, thanks
    for providing such statistics.

Leave a Reply

Your email address will not be published. Required fields are marked *