tutorials

Thursday, 25 June 2015

How to create an insane multiple monitor setup with three, four, or more displays

By http://ad-tutorials.blogspot.com/   Posted at  4:32 pm   with three No comments

How to create an insane multiple monitor setup with three, four, or more displays

Article by :  Sarah Jacobsson Purewal

Studies have shown that dual monitors can increase productivity, but the jury’s still out on whether adding even more monitors means even more productivity. That aside, having multiple monitors (and I’m talking three, four, five, or even six) is just…awesome, and something you totally need in your life.
Right now, my main PC has a triple-monitor setup: my main 27-inch central monitor and my two 24-inch side monitors. I use my extra monitors for a number of things, such as comparing spreadsheets side-by-side, writing articles while also doing research, keeping tabs on my social media feeds, and, of course, watching Netflix.
A vertically-oriented monitor can save you a lot of scrolling trouble in long documents. If you’re a gamer, well, I don’t need to sell you on three-plus monitors can be for games that support multi-monitor setups. You just need to plan ahead. Here’s our full guide on setting up multiple multiple monitors—and all the factors you’ll need to take into account before you do so.

Check your graphics card(s)

Before you run out and buy a bunch of extra monitors, check to see whether your computer is physically capable of handling all that graphics prowess. The easiest way to do this is to look at the back of your PC: How many graphics ports (DVI, HDMI, DisplayPort, and VGA) do you see?
If you do not have a discrete graphics card, you may only see video two ports—most motherboards come with integrated graphics that can only run dual-monitor setups. If you do have a discrete graphics card, you'll probably see at least three ports, not including the ports on your motherboard.
Tip: While it is possible to set up multiple monitors using ports on both your motherboard and your discrete graphics card, you’ll see a performance drop and some lag when you move windows between monitors. If you want to do this, you will also need to enter your PC’s BIOS and go toConfiguration > Video > Integrated graphics device and set it to “Always enable.”
Just because you see three or more ports on your discrete graphics card, however, doesn’t necessarily mean you can use all of them at the same time. For example, many older Nvidia cards are unable to run more than two monitors on a single card, even if they have more than two ports. The best way to find out whether your graphics card supports multiple monitors is to find the name of your card (Control Panel > Device Manager > Display Adapters) and Google it with the monitor setup you’re looking to run (e.g. “Nvidia GTX 770 four monitors”).
geforce gtx 650 ti ports
The Nvidia GeForce GTX 650 Ti, which can drive four displays, packs dual DVI ports as well as solitary DisplayPort and HDMI connections.
If your graphics card supports—and has enough ports for—the number of monitors you want to set up, excellent. If not, you may need to purchase an additional graphics card to get the multi-monitor support you’re looking for.
Alternatively, newer monitors with DisplayPort multi-streaming support can be daisy-chained together from a single DisplayPort 1.2 connection on your graphics card, using additional DisplayPort cables to connect the additional monitors to one another. The various displays don’t even need to be the same size or resolution.
Before you buy extra graphics cards, you’ll need to make sure that you have enough space in your tower (and open PCIe slots), as well as a power supply unit that can handle the extra strain.
If you buy a graphics card solely for the purpose of having multiple monitors, it’s best to get one that’s the same as (or, at least in the same product family as) your current graphics card, so you can connect them using SLI (Nvidia) or CrossFire (AMD). SLI and CrossFire setups will help your graphics cards run smoothly, and they’ll also boost your PC’s overall graphics performance so you can do fun things like play games in multi-monitor mode without framerates plummeting. You’ll get much better performance with multiple connected graphics cards than you will with multiple non-connected graphics cards. And, while you technically can run Nvidia and AMD cards side-by-side…it’s more trouble than it’s worth and I don’t recommend it.
ROBERT CA

Monitors, ports, and cables

Once you figure out your graphics card situation, it’s time for the fun part: obtaining extra monitors. Extra monitors can be had for fairly cheap these days. Assuming you can’t finagle a hand-me-down, a 24-inch monitor will run you around $170, while a decent 27-inch goes for about $250.
Of course, the perfect monitor for you depends on multiple factors, including the monitors you already have, the size of your desk, and what you’re planning on using your extra monitor for.
In my case, I already had two 24-inch monitors, and I wanted a larger monitor as the centerpiece of my setup, so I picked up a 27-inch monitor and placed it between my two 24-inch displays. I’m not using my multi-monitor setup to play multi-monitor games, so the difference in sizes (and the difference in heights—my 27-inch monitor’s stand holds my 27-incher about one inch higher than my 24-inchers) isn’t an issue for me. However, if you’re planning on doing a lot of gaming or watching videos that span multiple monitors, this height difference will make for a not-so-seamless experience.
A DisplayPort connector (left) and an HDMI cable (right).
Before you buy your monitors, you’ll also want to make sure they have input ports that correspond with your PC’s output ports. While you could use conversion cables, such as DVI-to-HDMI or DisplayPort-to-DVI, they can be a hassle. If you have a VGA port on your PC or your monitor, I suggest staying away from it: VGA is an analog connector, which means your picture will be noticeably fuzzier and colors will be less vivid.

Set up your PC

Set up your monitors, plug them in, and turn on your PC. Voila! A perfectly-formed multi-monitor setup! Well, it’s pretty easy, just not that easy.
The first thing you’ll want to do is configure Windows to play nicely with your multiple monitors. If you’re running Windows 7, right-click on the desktop and click Screen resolution. This will take you to the Screen resolution menu, where you’ll be able to configure what limited options you have for multiple monitors in Windows 7.
multiple monitors windows screen resolution
Here, you can see your setup, identify your monitors (click this and you’ll see large numbers appear on your screens, so you can identify which screen is which), and choose your main display. You can also choose whether to duplicate your desktop or extend your desktop between the screens. In most multi-monitor setups, you’ll want to extend your desktop across all three (or four, or whatever) of your displays.
If you’re running Windows 8, you have more options for your multi-monitor setup: You can extend the taskbar across displays and assign different wallpapers to each screen without using third-party software. Windows 7 users will need to use third-party software such as DisplayFusion or MultiWall to accomplish this. In Windows 8, you’ll also notice more intuitive mouse movement across your monitors, and all corners and edges will be active so you can access your Charms bar and other apps from any screen.
nvidia sarah multiple displays
In addition to Windows’ multi-monitor configurations, there’s also Nvidia’s and AMD’s control panels (depending on which type of graphics card you have). To access Nvidia’s control panel, right-click the Nvidia icon in your System Tray and click Nvidia Control Panel. Under Display, click Set up multiple displays. Here, you’ll be able to fiddle around with your monitor setup as well as set up Nvidia Surround.
To access AMD’s control panel, open the Catalyst Control Center in your System Tray and go to Graphics > Desktops & Displays to configure your multi-monitor setup. Here, you can create an Eyefinity group, which lets you set up a desktop to span multiple displays in any configuration.

Gaming

It’s one thing to use multiple monitors to do work and watch Netflix. It’s another thing entirely to use multiple monitors to play video games. If you want to use your snazzy new multi-monitor setup to do some three- or four-panel gaming, there are a few extra things you’ll have to take into consideration.
Gaming on several displays at once requires far more graphical firepower than gaming on a single screen alone, because the GPU has so many more pixels to push—so if you’re not running multiple graphics cards in a SLI or Crossfire setup, you’ll almost certainly see lag and artifacting in your multi-monitor games. Quite simply, a single graphics card usually doesn’t have the power to run multiple high-resolution, high-intensity displays at once (although some do—check out our graphics card showdown).
multiple monitor bioshock game
GLORIOUS.
Before you can start playing your games across multiple panels, you’ll need to set up your graphics card and your game. Nvidia users will need to set up Nvidia Surround, while AMD users will need to create an Eyefinity group for their monitors.
You’ll also need to go into your game—not all games are multi-monitor compatible—and configure the video or display settings to the correct resolution so that the game spans across all of your monitors instead of staying squished on just one. You’ll also want to play around with other settings as the game allows, including field of view (too low, and there will be too much going on around you; too high and everything on your left and right screens will be hugely distorted).
For gaming, it’s easier if you have multiple identical displays, because otherwise you’ll run into issues with resolution, distortion (if your displays aren’t at the same height), and color calibration, all of which can be difficult to work with if you’re trying to play in a “seamless” environment.

Curtsy by : pcworld



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Wednesday, 24 June 2015

Wicd (Wireless Interface Connection Deamon

By http://ad-tutorials.blogspot.com/   Posted at  12:30 pm   Wireless No comments

 

Wicd is a flexible alternative to NetworkManager, complete with interfaces for GTK, KDE, curses and the command line. Use it to get your wireless network up and running

On most Linux systems, network management – both wired and wireless – is handled by a utility called NetworkManager. It is so ubiquitous that you may not even think about it. But, in Linux, there is always another choice. You can always do network management by manually configuring the appropriate configuration files. A better option is to use the utility wicd. Wicd provides interfaces using either GTK or KDE. This means you can use the one appropriate for the graphic libraries for your desktop. There is also a text-based interface, which uses the curses library. You can even use wicd within your scripts or on the command line with the CLI interface. This tutorial will walk you through most of the interfaces, and how to use them to configure your machine’s networking. This will include some issues, like using unusual setups of WPA security and adding functionality in the guise of network templates.




Part of the properties you can set is the type of encryption being used, along with any special values that are needed, like passphrases
Part of the properties you can set is the type of encryption being used, along with any special values that are needed, like passphrases

Resources

Step-by-step

Step 01 Get wicd
Wicd is hosted at both SourceForge and Launchpad – the URLs are provided on the previous page. On both websites you can find information on how to use wicd, as well as source code for the latest version.
Step 02 Installation
Most distributions include a series of packages to install wicd. For example, on Ubuntu each interface is available as a separate package. This means you can install only the portions that you need for your system. As always, you can install from source if you need the latest options.
Step 03 The GTK interface
On most systems, you will likely want
to use the GTK interface. To start it up, you can just type wicd-gtk. If your desktop has a tray, wicd will start up minimised to the tray. You can then click on it to open the main window. You can bypassthetraybyusingwicd-gtk -n.
Step 04 Lists of wireless networks
When you open up wicd, it will try to pull up the wireless networks available to you. Depending on the specifics in your area, it may miss some. You will want to click the refresh button to be sure that you pick up all of the networks available.
Step 05 Preferences
There are general preferences that you can set in wicd. To get to them may not be obvious, depending on the default size of the main window. You may need to click on the arrow on the far right to display the other menu items available. On your advisor’s system, this is where the Preferences option is located.
Step 06 Interfaces
In wicd, you can only configure one interface at a time. You set this in the Interfaces section of the Preferences window in wicd. You can check to see which interfaces are available on your system with the commands ifconfig and iwconfig. Just running these with no options will give you those lists.
Step 07 DNS servers
In the Preferences window, you can set global DNS options. This is useful if you want to use some other DNS server than that provided by your DHCP server. Or, if you are manually configuring the network details, you can set the DNS here.
Step 08 External programs
Selecting the External Programs tab of the Preferences window will allow you to set which external programs to use for various portions of the network configuration steps. It will query your system and only provide the options that are installed on your system. You can then select the specific programs for tasks like DHCP lookup.
Step 09 WPA supplicant program
WPA security is a bit of a bugbear. It is the preferred system to use, since WEP is so badly flawed. But, on Linux, it requires a separate program to handle the handshaking required. Clicking on the Advanced Settings tab in the Preferences window will allow you to select which program to use for WPA security.
Step 10 Back-end processing
Also in the Advanced Settings section is a selection for how to handle all of the back- end tasks to configure your network interfaces. The default (and most stable) is to use external programs, like iwconfig and dhclient. You can also choose to use IOCTL instead. It works faster, but is also more likely to fail.
Step 11 Interface properties
Each available network has its own set of properties. You can pull up the Properties window by clicking on the Properties button. Here you can set options if you are using a static IP address. If you are using encryption, you can select from the list of possible templates at the bottom of the window.
Step 12 Scripts
At the bottom of the window, you also have the option of running scripts. There are options to set scripts to be run just before or just after connection, as well as just before or just after disconnection. This lets you customise connections to your needs.
Step 13 Finding hidden networks
When you set up a Wi-Fi hotspot, you have the option of whether to broadcast the network name or to hide it from casual perusal. They’ll still appear under wicd, labelled with the name . This lets you find and connect to these hidden networks.
Step 14 WPA templates
If the network you are using needs encryption, you can select the specifics from the list of available templates. These templates will change the remaining options in the Properties window and ask you for whatever values you need for that particular type of encryption.
Step 15 Creating your own template
There are a surprising combination of options in encryption. So, wicd allows you to add templates for any combination of properties that wicd doesn’t already support. The template files are stored in the directory /etc/wicd/encryption/templates. You should be able to find one that is already close to what you need. You can make a copy of this template and edit it to match the settings that you need. Once your new template is finished, you can add an extra entry in the file /etc/ wicd/encryption/templates/active. It will then show up when you go to select the encryption template to use for your particular network.
Step 16 Wicd-curses interface
There are several scenarios where you don’t have a graphical interface but still need to set up wireless networking. Setting up Wi-Fi at the console is where wicd really shines. There is a text interface using the curses library that gives you all the same functionality that is available in the GTK version.
Step 17 Connecting to a network
When the curses version starts up, it will show you the full list of available networks. You can use the arrow keys to move up and down the list to select the one you are interested in connecting to. When the correct one is selected, you can connect by pressing Enter.
Step 18 Changing preferences
If the network you are interested in uses encryption, you need to set the template. To access the Properties window, you need to select the network of interest and then press the right-arrow key. You can then set any static elements, and also set the appropriate template.
Step 19 Wicd-cli Interface
In some cases, you may not even have a terminal capable of curses display. For this situation, you have a command-line version of wicd that lets you set up and manage wireless networks with the most basic of text interfaces.
Step 20 Scanning networks
The first step is to scan for available networks. To look for them, you would run the command wicd-cli -wireless -S, or wicd- cli -y -S. This will do a scan, but not show anything. If you want to see the results, you can either add -l to the above command, or subsequentlyrunwicd-cli -y -l.
Step 21 Connecting to a network
To connect to a given network, you would use wicd-cli -y -c -n NETWORKID. Disconnecting is done equivalently with wicd-cli -x -y. Setting options is a bit more involved, where you need to set individual properties with wicd-cli -s VALUE.
Step 22 Listing active connections
You can see the details of your current network connection by using the command wicd-cli -y -d. This includes the name, type of encryption, quality and bitrate, among other items.
Step 23 Where to now?
Now, with wicd, you should have all the tools required to easily configure wireless networking, no matter how basic a console you have. You can even build scripts that can handle the connection details at the proverbial touch of a button.

Curtsy by :Joey Bernard






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Friday, 19 June 2015

How to Use Keyboard Shortcuts

By http://ad-tutorials.blogspot.com/   Posted at  11:20 am   to use No comments


Nowadays Computer is our need. It is useful in every department of the life. There are different parts and function of Computer. We should know the Basics of using a Computer. One of the most important part of the Computer is our Keyboard.

Learning the Keyboard

If we want to make our standard high we should the Computer Keyboard Basics. We should try how to learn the Keyboard. We should know Computer Keyboard Shortcuts. If a person the Computer Shortcuts it shows the accuracy and efficiency of that person.
Today will discuss all Keyboard shortcut Keys one by one.

How to use keyboard shosrtcuts by tutorials.achidosti.com

Shortcut Keys of Keyboard


Win + D: This key is used when sudden minimize is required, it helps us to minimize our all tabs at one time.

  • Ctrl + Shift + Esc: This Key is used when we need Task Manager. 
  • Ctrl + Click: This key is used when we are writing something and we want to use hyper link, this key helps us to open a link when we are typing something. This is one of the best Shortcut keys in Ms Word. 
  • Print Screen: Helps us to take the snap shot of entire Screen. 
  • Alt + Print Screen: Helps us to take the picture of current play of the window. 
  • Ctrl + C: To copy the material. 
  • Ctrl + V: To paste the material. 
  • Ctrl + X: To cut the material. 
  • Ctrl + T: This Key is used when we want to open a new tab in Internet Browser. 
  • Alt + Enter: It adds www and .com in any site name automatically. 
  • Shift + Enter: It adds www and .net in any site name automatically. 
  • Ctrl + W: This Key helps to close current tab in our Browser. 
  • Ctrl + Backspace: This key helps to delete the last word you typed. 
  • Ctrl + Scroll: This key helps to Zoom in or Zoom out. 
  • Alt + Tab: This is very useful key while we are using multiple programs and want to jump to other program. 
  • Ctrl + S: This key helps us to save our Program while working on something. 
  • Ctrl + F: This Key open “Find the Word Box”. 
  • Ctrl + P: This key prints the current page. 
  • Ctrl + H: This key opens the History Box. 
  • F2: It is used to rename the selected file. 
These are some Keyboard Word Shortcuts. It will make some benefits in the matter of How to learn the Keyboard. These Computer Shortcut Keys help in making the work faster and once you will memorize them you will fell a great freshness in yourself.
Text & Image Curtsy: techrainy


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Thursday, 18 June 2015

Secure Your PC From Spyware

By http://ad-tutorials.blogspot.com/   Posted at  10:03 am   your No comments


Secure Your PC

سکیور یور کمپیوٹر

All about SpyWare

What is Spyware?

Broadly speaking, Spyware is something that sneaks on to your computer, usually with the intentions of extracting money from you. At its worst, Spyware can take control of your computer, directing you to web pages you didn't want to go to, downloading other nasty stuff in the background, and even harvesting email address, passwords and your credit card details. But even a mild case of Spyware infection can be nuisance.
If you've ever been plagued by annoying pop-ups when your computer loads, or have strange new icons where your clock is (bottom right, called the System Tray), or if you're directed to a strange webpage when you try to go on to the internet, then you may well be infected.
Spyware, in the main, gathers information about you and your online habits, and sends that information to third party. And all without asking for your permission!


Where does Spyware come from?

Spyware can come from a whole host of different sources. But Spyware mainly gets on to your PC through deception. For example, suppose you receive this email:
Email with potential Spyware
You'd assume that this email was sent to you in error. Can you resist clicking on the link? After all, what harm can it do? Well, a lot actually! There well may be a joke on the site, but there's something less funny going on in the background - the web page is trying to sneak something on to your PC! You may also have seen a harmless-looking popup window asking you to click a button to proceed. You'll click it anyway, just to get rid of it. Clicking OK is what's infected your PC!
Other sources of Spyware infection are freeware or shareware software, an operating system that is un-patched and hasn't got the latest security software, downloading stuff from peer-to peer applications - the list is long!
And don't think your Anti-Virus software will protect you - it won't! Spyware is not considered to be a virus, so your Anti-Virus software won't spring in to action once an infection takes place - it will stay sleeping in the background, unaware that anything malicious is going on. The best tool for the job is a dedicated Spyware Detection system.

Beware of the Scam Merchants!

You may have come across a website that promises to check your PC for Spyware infection. All for free. All you need to do is to click a button to scan your PC. So you download, scan, and lo and behold - it's found something! Then up pops a message directing you to a website that lets you buy the software.
Except, it didn't really detect anything. Or if it did, it's what's know as a false positive (Something that sounds dangerous but isn't). The job of the scan is to scare you into buying their software.
If you type in "Spyware detection" into Google, most of the results that come back are for these types of programmes. According to Suzi Turner, writing on Zdnet , some of the most popular Spyware scams are these products:
  1. SpyAxe
  2. SpySheriff
  3. PSGuard
  4. WorldAntiSpy
  5. Spy Trooper
  6. Razespyware
  7. SpywareNo or SpyDemolisher
  8. WinAntiVirus or WinAntiSpyware 2005
  9. SlimShield tied with "Winhound Spyware Remover"
  10. Spyware Bomber (shut down by the FTC)
Hopefully, you haven't bought anything on the top ten list! Even if you haven't, check out the alarmingly long list of scam Spyware on spywarewarrior.com (Fortunately, they also have a good-software list!)
If you've bought any of the software on the bad list then the protection you have is at no protection at all. At worst, these pieces of software can be incredibly difficult to get rid of - Spyware themselves!

How to get Rid of Spyware

As a computer owner, you really need your wits about you in the Spyware detection game. So what are you to do if you can't even trust the very people who say they are going to help you clean your PC? Well, you can fight back! The best way to do that is with software from very reputable companies. The following are the most well-known (and free) anti-spyware solutions:
Ad-Aware is probably the easiest to use of the three. SpyBot is good, but a bit complex for beginners. Microsoft Windows Defender is well worth getting, too. However, it's not the easiest piece of software in the world to use. You do get some good tools with it, though. Check out the websites by clicking the links above (there's a tutorial on the Microsoft site for Windows Defender).
Once you download your chosen anti-spyware solution, you need to install it on to your PC. After you have installed it, start the software and do a full scan of your computer. (Ad-Aware has a nice big button that says "Scan"!)
Unlike anti-virus software, it IS recommended that you have more than one anti-spyware solution on your PC. This is because spyware can be very difficult to get rid of, and anti-spyware software will rarely find 100 percent of threats. By having more than one solution, what one piece of anti-spyware programme misses, the other should (hopefully) pick it up.
Text Curtsy: Free Computer Tutorials 


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Tuesday, 16 June 2015

The Windows 7 Taskbar

By http://ad-tutorials.blogspot.com/   Posted at  12:52 pm   windows 7 No comments

The Windows 7 Taskbar

The taskbar is the thin strip that runs across the bottom of your screen. It is split into a number of different areas: a round Start button, Quick Launch icons, a notification area, and a clock. All other areas are the Taskbar itself. The image below shows where the different areas are:



The Start button is explained in a section all of its own, as it's probably the most important area of the Taskbar. Click here to go the Start button page:
The Windows 7 Start button
There is one more area on the Taskbar, and it's easily overlooked - the Show Desktop button. In the images above, you can just see a narrow rectangle to the right of the clock:



Click this button to minimize all open programmes and reveal the desktop.

Quick Launch Icons

In the main image above, take a look at the three big icons to the right of the round Start button. These are quick launch icons, meaning you can quickly launch any of the programmes you see there. When you hold your mouse over one of the icons, you'll see a small popup rectangle that shows you a preview of any open windows. In the image below, we're holding our mouse over the Firefox icon. (Firefox is a web browser used to display internet pages. It's Internet Explorer's main competitor.)
In Windows Vista, however, the icons will be smaller, and there's no popup.



Click on the preview window and it opens the programme up in full screen.
There are several ways to add new programmes to the Quick Launch area, but Windows 7 makes it a lot easier. Open up a programme using the Start menu. When it's open, use the right mouse button to click its icon in the Taskbar. A new menu appears:



In the image above, we have Microsoft Excel open. Right-clicking its icon in the Taskbar gave us the above menu. Once "Pin this program to the taskbar" is clicked with the left mouse button, it will appear permanently in the Quick Launch arrear. If you want to get rid of any Quick Launch programmes, the item on the menu will say "Unpin this program from the taskbar" when you right-click.
You can also use the Start menu to add programmes to the Quick Launch area. Again, right-click the programme you want to add. From the menu, select "Pin to Taskbar". In the image below, we're adding Notepad as a Quick Launch icon:



The result is a new icon in the Quick Launch area:





Notification Area

(NOTE: The Notification area saw a big change from Windows Vista to Windows 7. You should recognise a lot of the icons below, however, if you have Vista.)
The Notification area, formally called the System Tray, is the area of the Taskbar where you can view programmes and tasks that are running in the background, as well as view important messages about updating your computer. (Although the clock is considered part of the Notification area, we'll look at this separately.)
In the image below, the Notification area shows three icons:



The first one, the white arrow, is for hidden icons. Click the white arrow to see which icons have been hidden:



Probably the only one of the four icons above that you'll have is the speaker icon. This sets the volume for your speakers. If yours is too low, click the speaker icon to see a slider that you can move up and down:



The second of the three icons in the Notification area is a white flag. This flag alerts you to issues that need to be taken care of. Click the flag icon to see if there are any problems:




As you can see, Windows 7 is telling us that there is 1 message, and that it's to do with Windows Defender. You can click on the "1 message" heading at the top, or on the message itself. You can also open the "Action Center" from here.
The third icon that appears in the Notification area (on our computer, anyway) is a Network icon. This tells us that we have an internet connection, and there are no problems. If the internet access is down, there will be a red X through this icon:



The red X will disappear when the problem with the internet is solved.
In the next part, we'll take a look at the Windows 7 clock, and the date and time.


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