The 10 Important URLs That Every Google User Should Know

What does Google know about the places you’ve visited recently? What are your interests as determined by Google? Where does Google keep a list of every word that you’ve ever typed in the search box? Where can you get a list of Google ads that were of interest to you?

The 10 Important Google Links

Google stores everything privately and here are the 10 important links (URLs) that will unlock everything Google knows about you. They are hidden somewhere deep inside your Google Account dashboard and they may reveal interesting details about you that are otherwise only known to Google. Let’s dive in.

1. Google stores a list of usernames and passwords that you have typed in Google Chrome or Android for logging into various websites. They even have a website too where you can view all these passwords in plain text.

passwords.google.com

2. Google creates a profile of yourself based on the sites you visit, guessing your age, gender and interests and then use this data to serve you more relevant ads. Use this URL to know how Google sees you on the web.

www.google.com/settings/ads

3. You can easily export all your data out of the Google ecosystem. You can download your Google Photos, contacts, Gmail messages and even your YouTube videos. Head over the the Takeout page to grab the download links.

www.google.com/takeout

4. If you ever find your content appearing on another website, you can raise a DMCA complaint with Google against that site to get the content removed. Google has a simple wizard to help you claim content and the tool can also be used to remove websites from Google search results that are scraping your content.

support.google.com/legal

5. Your Android phone or the Google Maps app on your iPhone is silently reporting your location and velocity (are you moving and if yes, how fast are you moving) back to Google servers. You can find the entire location history on the Google Maps website and you also have the option to export this data as KML files that can be viewed inside Google Earth or even Google Drive.

google.com/maps/timeline

6. Create a new Google Account using your existing email address. The regular sign-up process uses your @gmail.com address as your Google account username but with this special URL, you can use any other email address as your username.

accounts.google.com/SignUpWithoutGmail

7. Google and YouTube record every search term that you’ve ever typed or spoken into their search boxes. They keep a log of every Google ad that you have clicked on various websites, every YouTube video you’ve watched and, if you are a Google Now user, you can also see a log of all your audio search queries. OK Google.

history.google.com (Google searches)
history.google.com/history/audio (Voice searches)
youtube.com/feed/history (YouTube searches and watched videos)

8. You need to login to your Gmail account at least once every 9 months else Google may terminate your account according to their program policies. This can be an issue if you have multiple Gmail accounts so as a workaround, you can setup your main Gmail account as the trusted contact for your secondary accounts. Thus Google will keep sending you reminders every few months to login to your other accounts.

www.google.com/settings/account/inactive

9. Worried that someone else is using your Google account or it could behacked? Open the activity report to see a log of every device that has recently connected into your Google account. You’ll also get to know the I.P. Addresses and the approximate geographic location. Unfortunately, you can’t remotely log out of a Google session.

myaccount.google.com/security

10. Can’t locate your mobile phone? You can use the Google Device Manager to find your phone provided it is switched on and connected to the Internet. You can ring the device, see the location or even erase the phone content remotely. You can even find the IMEI Number of the lost phone from your Google Account.
google.com/android/devicemanager

How to Embed a YouTube Video with Sound Muted

It is easy to embed YouTube videos in your website. You grab the default IFRAME embed code, paste it anywhere inside your web page and you’re done. YouTube offers basic customization – you can modify the player dimensions or hide the YouTube branding – but if you would like to exercise more control over the  behavior of the embedded player, YouTube Player API is the way to go.

This tutorial explains how you can embed a YouTube video that will automatically play when the web page is loaded but with muted audio.

For instance, a products website may use short screencasts to highlight features and these videos will autoplay when the page is loaded. The volume is however set to 0 and the user can manually click to un-mute the video. Similarly, if you are using YouTube video backgrounds, it makes more sense to embed muted videos that run in a loop.

Embed YouTube Player with Autoplay and Sound Muted

See the demo page to get an idea of what we are trying to do here. The page loads, the video plays but with the audio slide is all the way down.

This is easy. Go the YouTube video page and note down the ID of the video from the URL. For instance, if the YouTube video link is http://youtube.com/watch?v=xyz-123, the video id is xyz-123. Once you have the ID, all you have to do is replace YOUR_VIDEO_ID in the following code with that string.

<div id="muteYouTubeVideoPlayer"></div>
 
<script async src="https://www.youtube.com/iframe_api"></script>
<script>
 function onYouTubeIframeAPIReady() {
  var player;
  player = new YT.Player('muteYouTubeVideoPlayer', {
    videoId: 'YOUR_VIDEO_ID', // YouTube Video ID
    width: 560,               // Player width (in px)
    height: 316,              // Player height (in px)
    playerVars: {
      autoplay: 1,        // Auto-play the video on load
      controls: 1,        // Show pause/play buttons in player
      showinfo: 0,        // Hide the video title
      modestbranding: 1,  // Hide the Youtube Logo
      loop: 1,            // Run the video in a loop
      fs: 0,              // Hide the full screen button
      cc_load_policty: 0, // Hide closed captions
      iv_load_policy: 3,  // Hide the Video Annotations
      autohide: 0         // Hide video controls when playing
    },
    events: {
      onReady: function(e) {
        e.target.mute();
      }
    }
  });
 }
 
 // Written by @Allsoftlearn 
</script>





Next place the edited code in your web page and the embedded video would automatically play but the sound is muted.

You can further customize the player by modifying the various player variables as commented in the code. For instance, if you set loop as 1, the video will play in a loop. Set fs to 1 to show the fullscreen button inside the video player. Internally, the player is embedded using the YouTube IFRAME API. When the page is loaded, the onReady event runs that mutes the video.






                   The embedded YouTube video will autoplay, but muted.

Get Windows 10 for Free After July 29th, with a Little Prep Now

Microsoft has confirmed that Windows 10’s free upgrade offer will expire on July 29, 2016. After that, you’ll have to pay $119 to upgrade on any computer that hasn’t already made the leap. But with a few simple steps, you can “reserve” that free copy now, so you can upgrade after July 29 without paying.

We know not everyone wants to upgrade to Windows 10 right now, and that’s fine. But one day, you’ll probably have to. And you don’t want to have to pay $119 for it. By upgrading a computer now and then rolling back to Windows 7 or 8, you’ll get to keep your original version of Windows, but “reserve” that free Windows 10 license for all your PCs.

How This Works

When you upgrade to Windows 10 from a PC running a genuine and activated Windows 7 or Windows 8.1 operating system, your PC receives a “digital entitlement.” Basically, Microsoft notes on its servers that your particular PC’s hardware is eligible for Windows 10 going forward.

Once your PC is eligible, it’s always eligible–you can reinstall Windows 10 from scratch and it’ll automatically activate, without you even entering a product key. You can even install a different operating system–like Windows 7 or Linux–and reinstall Windows 10 later, fully activated and genuine.

Note that this is tied to your computer’s specific hardware, not your Microsoft account. The free Windows 10 license you receive will only work on that PC–if you upgrade the motherboard or try to install Windows 10 on another PC that doesn’t have the digital entitlement, it won’t work.

So, in order to “reserve” Windows 10, we’re going to walk you through the steps of upgrading to Windows 10 on your machine, then reverting to Windows 7 or 8. You get to keep the version of Windows you love, but your PC will be entitled to Windows 10 at any point in the future, without having to pay $119.

We’ll walk you through two methods: A simple method that involves upgrading and rolling back, and a slightly more complex method that involves cloning your current disk, so everything isexactly how you left it.

The Easy (But Imperfect) Method: Upgrade and Roll Back

The easiest way to do this is use the “roll back” feature to uninstall Windows 10 and get your old Windows 7 or Windows 8.1 system back. However, this may not always work perfectly. Some programs may be removed during the upgrade and you may have to reinstall them afterwards, for example. If you want to be extra sure everything stays exactly as you left it, head to the next section for the slightly more complicated option.

However, if you’d like to live dangerously (and don’t want to waste much time), the upgrade and roll back method is simple. First, download the Windows 10 upgrade tool, run it, and agree to upgrade your PC to Windows 10.

After Windows 10 is installed, click the “Start” button and select “Settings.” Navigate to Update & Security > Activation. Ensure it says “Windows 10 on this device is activated with a digital entitlement.” If it does, your PC is registered with Microsoft and you can install Windows 10 on it whenever you like. You may need to wait a while for Windows to contact the activation servers.

Once your activation looks good, go to the Recovery tab and click the “Get started” button under “Go back to Windows 7” or “Go back to Windows 8.1.”

Windows 10 will automatically uninstall itself and restore your old Windows system to your hard drive. Congratulations! You’re now back to Windows 7 or 8, but are eligible to upgrade to Windows 10 for free, even after the July cutoff date.

The Complicated (But More Exact) Method: Image and Restore Your System Drive

For maximum safety, you’ll want to create an image your Windows 7 or 8.1 system drive before upgrading. Then, after upgrading, you can restore that cloned image to your computer, ensuring you’ll get your system in the exact state it was in before.

You’ll need an extra hard drive to accomplish this, at least as big as the one in your computer. (Alternatively, you can use several discs, but that could take a very long time.)

You’ll also need a third-party tool to image your drive. We recommend Macrium Reflect for this. So download and install the free version on this page and launch it. You’ll be prompted to create rescue media, which you can use to restore your backup image later. If you aren’t, click Other Tasks > Create Rescue Media. Go through the wizard, selecting the default options and then choosing the device you want to use for your boot media. You can either create a bootable USB stick or burn this rescue media to a disc.

Next, in the main Macrium Reflect window, click the “Create an image of the partition(s) required to backup and restore Windows” option in the sidebar. On the Disk Image window that pops up, make sure the entire disk is checked under “Source”–you don’t want to miss any of those partitions. Under Destination, choose your spare hard drive as the “Folder”.

Click “Next” to go through the wizard, ignoring all the advanced settings about templates and scheduling. Click “Finish” at the end of the wizard and then wait for Macrium Reflect to image your drive.

When Macrium Reflect is done cloning your drive, download and run the Windows 10 upgrade tool. Allow it to upgrade your PC to Windows 10. This may take a while, so give it time.

Once the upgrade finishes, your computer should, in theory, be permanently eligible for Windows 10.

To make sure, click the “Start” button in Windows 10 and select “Settings.” Navigate to Update & Security > Activation. Ensure it says “Windows 10 on this device is activated with a digital entitlement.” If it does, your PC is registered with Microsoft and you can install Windows 10 on it whenever you like. You may need to wait a while for Windows to contact the activation servers.

All good? Good. Now it’s time to roll back to your old setup.

Boot your computer from that Macrium Reflect recovery drive we created during the initial setup. You can do this by entering the boot menu when your computer starts, or changing your computer’s boot drive order.

Once in the recovery tool, connect the external drive you backed up to. Select the “Restore” tab and use the “Browse for an image file” option to select the image you created earlier. Click “Restore Image” to restore the cloned image back to your computer.

Now, carefully select the system drive you imaged earlier–the original one you had Windows installed on. If your computer has multiple disks, be sure you’re restoring the image back to the same drive you originally cloned. If you don’t, you could lose data!

Use the “Copy selected partitions” option to copy the partitions from your image back to the disk. Finally, click “Next” and finish going through the wizard. Macrium Reflect will restore your image, overwriting Windows 10 with your original Windows installation.

The Clean Slate Option: Upgrade to Windows 10, then Reinstall 7 or 8

If you don’t mind reinstalling Windows fresh and losing everything on your computer, you can always upgrade to Windows 10, then do a fresh install of Windows 7 or 8 afterward. Be sure you have backups of your important files before doing this!

Just download and run the Windows 10 upgrade tool and let it upgrade your PC. After you’re done, download Windows 7 or 8.1 installation media from Microsoft’s website, place it on a USB flash drive or DVD, and boot from it. Go through the normal process of reinstalling Windows and wipe your hard drive, replacing Windows 10 with the older version of Windows.

You’ll need a valid Windows product key for this. The Windows product key that came with your computer should usually work, but Microsoft doesn’t guarantee that “OEM” or “Original Equipment Manufacturer” keys can always be used to reinstall Windows. (If you run into errors, try activating it with Microsoft over the phone–that often works.)

How to Uninstall Windows 10 and Downgrade to Windows 7 or 8.1

Don’t like Windows 10? As long as you’ve upgraded within the last month, you can uninstall Windows 10 and downgrade your PC back to its original Windows 7 or Windows 8.1 operating system. You can always upgrade to Windows 10 again later.

Even if it’s been more than a month, you should be able to reinstall the version of Windows that came with your PC using fresh installation media and its product key.

Go Back to Windows 7 or 8.1

If you’ve upgraded a PC to Windows 10 — not performed a clean install, but an upgrade — you’ll have an easy option that lets you revert to the last version of Windows. To access this, open the Start menu and select Settings. Click the “Update & security” icon and select “Recovery.”

You should see a “Go back to Windows 7” or “Go back to Windows 8.1” option. Click the Get started button to get rid of your Windows 10 install and restore your previous Windows install. Microsoft will ask you why you want to go back.

If it’s been over a month — or if you’ve run the DIsk cleanup tool and removed the “Previous Windows installations” files or deleted the C:\Windows.old folder by hand — you’ll no longer see this option. Windows 10 appears to automatically remove the old Windows installation files after a month to free up space.

This Uses the Windows.old Folder

This works because Windows 10 stores your old Windows installation in the folder named “C:\Windows.old” on your computer. You can see this folder in File Explorer, though you shouldn’t attempt to delete it from here. You can also browse the Windows.old folder and restore files from it.

Obviously, storing every single file from your old Windows installation takes a lot of space. If you open the Disk Cleanup application, you’ll see just how much space it uses. Click the Start button, type “Disk cleanup” to search for it, launch it, and click the “Clean up system files” button.

Find ‘Previous Windows installation(s)” in the list, and you’ll see just how much space it’s consuming on your hard drive. If you’re sure you don’t want to go back to your previous version of Windows, use Disk Cleanup tool to remove those files and immediately free up space.

How to Downgrade if Windows 10 Doesn’t Give You The Option

Assuming you have an old computer you upgraded to Windows 10, that computer previously had Windows 7 or 8.1 on it. That means that computer came with a product key that allows you to use Windows 7 or 8.1 on it. To get back to an older version of Windows, you’ll have to perform a clean install of Windows — something PC geeks often do on new computers, anyway.

Thankfully, Microsoft now offers easy downloads for Windows 7 and 8.1 ISO files. Download the Windows installation media and burn the ISO file to a disc or copy it to a USB drive using Microsoft’s Windows USB/DVD download tool. You can then boot from it and reinstall Windows 7 or 8.1 fresh, telling it to overwrite the Windows 10 system already on your hard drive. Be sure you have backup copies of all your important files from your Windows 10 PC first.

You’ll have to find your PC’s product key if you do this. On a Windows 7 PC, examine your PC for a “certificate of authenticity” sticker with a key on it. They sticker may be on the underside of your laptop, in the battery compartment under a removable battery, or even on a laptop’s power brick. On a Windows 8 PC, you may not have to do this at all — the key may be embedded in your computer’s firmware and Windows 8.1 will automatically detect it and allow you to reinstall Windows 8.1 without even asking you to enter a key.

If you bought a new PC that came with Windows 10 and you want to go back to a previous version of Windows, that’s tougher. To do this legitimately, you’ll need to purchase a Windows 7 or 8.1 license and install it from scratch, entering the product key you purchased during the install process.

If an important program or hardware device you use doesn’t work on Windows 10, you’ll want to downgrade. If Windows 10 just seems unstable, you’ll want to go back to your previous version of Windows and wait a while longer before attempting an upgrade. Or, if you’d just rather hang onto Windows 7 for a while longer, you can downgrade.

Windows 10 will remain a free upgrade for the first year, after all.

How to Find Your Lost Windows or Office Product Keys

If you’re planning on doing a reinstall of Windows but can’t find your product key, you’re in luck because it’s stored in the Windows Registry… it’s just not easy to find, and it’s impossible to read without some help. Luckily, we’re here to help.

As you can see in the screenshot above, the product ID is stored in the registry but is in a binary format that can’t be read by humans unless you are some sort of Cylon. You aren’t, are you?

We’re not really sure why Microsoft went to great lengths to make it difficult to see the product keys for their software, especially since they are stored right in there in the registry and can be read by software, if not by humans. We can only assume that they don’t want anybody to re-use a key from an old computer.

The great thing is that you can even recover a key from a computer that won’t boot anymore. All you need is access to the disk drive from a working computer. Keep reading for more.

Note: the NirSoft keyfinder won’t always work for OEM computers, depending on how they decided to activate the licenses they might have used a single license for all computers. It also doesn’t work for Office 2013.

Three Places You Might Find the Key

The key you need will be in one of three places:

• Stored in software on your PC: When you (or your PC manufacturer) installs Windows, Windows stores its product key in the registry. You can extract this product key, and — often — enter it when reinstalling Windows on your PC. Crucially, you’ll need to grab it from your operating system before you begin reinstalling Windows or it could be deleted if you format your hard drive.
• Printed on a sticker: Some PCs use a technology called “System Locked Pre-installation,” or SLP. If your PC uses this, the product key on your PC — the one stored in the registry, and the one key-viewer applications display — will be different from the actual key your PC needs. The actual key is on a certificate of authenticity (COA) sticker on your PC or its power supply. The one in the registry and key-viewer application is a red herring. This system was common for Windows 7 PCs.
• Embedded in your PC’s UEFI firmware: Many newer PCs that come with Windows 8 use a new method. The key for the version of Windows the PC comes with is stored in the computer’s UEFI firmware or BIOS. You don’t even need to know it — assuming you’re installing the same edition of Windows the PC came with, it should automatically activate and work without you needing to enter a key. It’ll all happen automatically.

Be sure to use the same version and edition of Windows the computer came with. In other words, if it came with Windows 7 Home Premium, you can’t install Windows 7 Professional.

Finding the Windows Key Without Any Software (Advanced Users Only)

Assuming you can boot your computer without any problems, you can easily create a simple VBscript that will read the value out of the registry and then translate it into the format that you need for reinstalling. I'm not sure where this script came from, but i found it on a forum a long time ago, so i'm sharing it here for you.

Copy and paste the following into a Notepad window:

Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))

Function ConvertToKey(Key)
Const KeyOffset = 52
i = 28
Chars = "BCDFGHJKMPQRTVWXY2346789"
Do
Cur = 0
x = 14
Do
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur \ 24) And 255
Cur = Cur Mod 24
x = x -1
Loop While x >= 0
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i <> -1) Then
i = i -1
KeyOutput = "-" & KeyOutput
End If
Loop While i >= 0
ConvertToKey = KeyOutput
End Function

You’ll need to use File -> Save As, change the “Save as type” to “All Files” and then name it productkey.vbs or something similar ending with the vbs extension. We’d recommend saving to the desktop for easy access.

Once you’ve saved it, you can just double-click and the popup window will show you your product key.

Protip: If you use CTRL + C when the popup window is active, it will copy the contents of the window to the clipboard, and then you can paste it into Notepad or somewhere else.

Use NirSoft’s ProduKey to Recover Product Keys (Even if You Can’t Boot the PC)

The easiest way to get access to your product key is with a third-party utility, and there’s nobody better at those than NirSoft. Their utilities are always crapware-free, and are always really useful. The only issue with this particular utility is that some antivirus will detect it as a false positive, because some malware might try to steal your product key.

Note: if your OEM installed your computer and used a single key for all their PCs, this key might not actually work to reinstall your computer. Keep reading for more information.

All you have to do is download ProduKey, unzip it, and then run it to immediately see all of your product keys. It’s as simple as that.

If you want to recover a key from a dead computer, you can hook up the hard drive to a working PC, and then run ProduKey and use File -> Select Source to point to the external Windows directory. You can then grab the keys from that computer easily.

You can also use a Linux live CD to pull the Windows directory off the other computer and onto a thumb drive, or just grab the registry files if you prefer.

Read the Key From the COA Sticker

So, is that product key usable for reinstalling Windows on your PC? If you have a Windows 7-era PC, there’s a good chance the PC’s key is a single key the manufacturer uses for all their PCs. Thanks to “System Locked Pre-installation,” you’re not allowed to use that key to install Windows. If you try, you’ll get error messages about the key being invalid.

To check, you’ll need to look for a certificate of authenticity sticker on your computer. The COA sticker verifies that the computer came with an authentic copy of Windows, and that sticker has a product key printed on it. You’ll need that product key to reinstall Windows — and, if the manufacturer used System Locked Pre-installation, that key is different from the one your PC came with in software.

Examine your computer to find the key. On a laptop, it may be on the bottom of the laptop. If your laptop has a removable battery, it may be under the battery. If there’s some sort of compartment you can open, it might be in there. It may even be stuck to the laptop’s charger brick. If it’s a desktop, look on the side of the desktop’s case. If it’s not there, check the top, back, bottom, and anywhere else it might be.

If the key has rubbed off of the sticker, there’s not much you can do. You can try contacting your computer’s manufacturer and explaining what happened, but we can’t guarantee they’ll help. Microsoft would always be happy to sell you another key, though!

Computer - Output Devices

Following are few of the important output devices which are used in a computer.

• Monitors
• Graphic Plotter
• Printer

Monitors

Monitors, commonly called as Visual Display Unit (VDU), are the main output device of a computer. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon the number of pixels.

There are two kinds of viewing screen used for monitors.

• Cathode-Ray Tube (CRT)
• Flat- Panel Display

Cathode-Ray Tube (CRT) Monitor

The CRT display is made up of small picture elements called pixels. The smaller the pixels, the better the image clarity, or resolution. It takes more than one illuminated pixel to form whole character, such as the letter ‘e’ in the word help.

A finite number of characters can be displayed on a screen at once. The screen can be divided into a series of character boxes - fixed location on the screen where a standard character can be placed. Most screens are capable of displaying 80 characters of data horizontally and 25 lines vertically. There are some disadvantages of CRT:

• Large in Size
• High power consumption

Flat-Panel Display Monitor

The flat-panel display refers to a class of video devices that have reduced volume, weight and power requirement in comparison to the CRT. You can hang them on walls or wear them on your wrists. Current uses of flat-panel displays include calculators, video games, monitors, laptop computer, graphics display.

The flat-panel display is divided into two categories:

• Emissive Displays - The emissive displays are devices that convert electrical energy into light. Example are plasma panel and LED(Light-Emitting Diodes).
• Non-Emissive Displays - The Non-emissive displays use optical effects to convert sunlight or light from some other source into graphics patterns. Example is LCD(Liquid-Crystal Device)

Printers

Printer is an output device, which is used to print information on paper.

There are two types of printers:

• Impact Printers
• Non-Impact Printers

Impact Printers

The impact printers print the characters by striking them on the ribbon which is then pressed on the paper.

Characteristics of Impact Printers are the following:

• Very low consumable costs
• Very noisy
• Useful for bulk printing due to low cost
• There is physical contact with the paper to produce an image

These printers are of two types

• Character printers
• Line printers

Character Printers

Character printers are the printers which print one character at a time.

These are further divided into two types:

• Dot Matrix Printer(DMP)
• Daisy Wheel

DOT MATRIX PRINTER

In the market one of the most popular printers is Dot Matrix Printer. These printers are popular because of their ease of printing and economical price. Each character printed is in form of pattern of dots and head consists of a Matrix of Pins of size (5*7, 7*9, 9*7 or 9*9) which come out to form a character that is why it is called Dot Matrix Printer.

Advantages

• Inexpensive
• Widely Used
• Other language characters can be printed

Disadvantages

• Slow Speed
• Poor Quality

DAISY WHEEL

Head is lying on a wheel and pins corresponding to characters are like petals of Daisy (flower name) that is why it is called Daisy Wheel Printer. These printers are generally used for word-processing in offices which require a few letters to be sent here and there with very nice quality.

Advantages

• More reliable than DMP
• Better quality
• The fonts of character can be easily changed

Disadvantages

• Slower than DMP
• Noisy
• More expensive than DMP

Line Printers

Line printers are the printers which print one line at a time.

These are of further two types

• Drum Printer
• Chain Printer

DRUM PRINTER

This printer is like a drum in shape so it is called drum printer. The surface of drum is divided into number of tracks. Total tracks are equal to size of paper i.e. for a paper width of 132 characters, drum will have 132 tracks. A character set is embossed on track. The different character sets available in the market are 48 character set, 64 and 96 characters set. One rotation of drum prints one line. Drum printers are fast in speed and can print 300 to 2000 lines per minute.

Advantages

• Very high speed

Disadvantages

• Very expensive
• Characters fonts cannot be changed

CHAIN PRINTER

In this printer, chain of character sets are used so it is called Chain Printer. A standard character set may have 48, 64, or 96 characters.

Advantages

• Character fonts can easily be changed.
• Different languages can be used with the same printer.

Disadvantages

• Noisy

Non-impact Printers

Non-impact printers print the characters without using ribbon. These printers print a complete page at a time so they are also called as Page Printers.

These printers are of two types

• Laser Printers
• Inkjet Printers

Characteristics of Non-impact Printers

• Faster than impact printers.
• They are not noisy.
• High quality.
• Support many fonts and different character size.

Laser Printers

These are non-impact page printers. They use laser lights to produce the dots needed to form the characters to be printed on a page.

ADVANTAGES

• Very high speed
• Very high quality output
• Give good graphics quality
• Support many fonts and different character size

DISADVANTAGES

• Expensive.
• Cannot be used to produce multiple copies of a document in a single printing.

Inkjet Printers

Inkjet printers are non-impact character printers based on a relatively new technology. They print characters by spraying small drops of ink onto paper. Inkjet printers produce high quality output with presentable features.

They make less noise because no hammering is done and these have many styles of printing modes available. Colour printing is also possible. Some models of Inkjet printers can produce multiple copies of printing also.

ADVANTAGES

• High quality printing
• More reliable

DISADVANTAGES

• Expensive as cost per page is high
• Slow as compared to laser printer