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msg4hk's Questions & Answers

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AJAX Ki koi limitation ya drawback hei kya???

Asked by Vinod Singh in Computers & Technology at 10:36 PM on March 17, 2009

msg4hk's Answer

Ajax is primarily a client/server technology. Client nodes in the web do not typically run web servers that can respond to HTTP GET and POST requests. Since clients cannot directly communicate with each other any distributed application developed using
Ajax would require a central web server system to negotiate requests between clients. Client A could generate events/data for and respond to events/data from Client B however both would need to connect to a common web server to facilitate the communication.

Another limitation of Ajax is slow or unreliable network connections. Traditional web applications that require a full round-trip to the server may behave slowly for end users but they would be predictable. End users would generally intuitively

know they have performed an action such as submitting a form or clicking a link and must

wait for a server to respond. With Ajax users have less intuition about which type of events within a page may result in a need to wait for a server response. Instead of enhancing the end user experience Ajax over slow or unreliable network

connections may reduce usability if not carefully designed to accommodate both fast and slow network characteristics.

Answered at 11:49 AM on March 18, 2009

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Explain the various techniques for animation in Multimedia.?

Asked by Ashwani Sing in Computers & Technology at 5:24 PM on March 04, 2009

msg4hk's Answer

Animation is the rapid display of a sequence of images of 2-D artwork or model positions in order to create an illusion of movement. it is an optical illusion of motion due to the phenomenon of persistence of vision.

various techniques

Traditional Animation

-Full Animation
-Rotoscoping
-Clay/Stop -motion Animation (gumby)
-Cut out animation (southpark)

Computer Animation (computer assissted animation)
-2d animation - 2d vector or 2d bitmap images
-3d animation

Answered at 5:27 PM on March 04, 2009

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Explain the use of communication technologies in multimedia services. ?

Asked by Ashwani Sing in Computers & Technology at 5:13 PM on March 04, 2009

msg4hk's Answer

this ebook will provide ech details...
http://totme.com/catego ries/ebooks/The_N...

Answered at 5:27 PM on March 04, 2009

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How to unblock a site?

Asked by Ravi Teja in Computers & Technology at 8:35 PM on February 05, 2009

msg4hk's Answer

Unblocking a web site can be accomplished whether you are at the office, at a school computer or using a public computer at some libraries or internet cafes. In order to unblock a web site you have to some way circumvent or disable the web site blocking software, the web browser or the firewall that is being used to block a web site. There are a few strategies to accomplish this task.

Proxy Servers (Anonymizers)
Proxy servers (sometimes called web site anonymizers because they make the computer user anonymous) circumvent filters on the computer or even the firewall due to the way these sites operate. Proxy servers are computers outside your company's firewalls easily accessed via the internet. They have their own IP address and are able to be controlled via your computer. Your computer connects to a proxy server and the proxy server is the computer that makes the connection with the blocked web site. The proxy server then shows you the contents of the page. You can view the web site and even interact with the web site through the proxy server- even though it is blocked by your computer or firewall. This is achieved because it is not your computer interacting with the web site, but a third party – the proxy server that makes the connection with the blocked site.

Here are some web sites where you can find lists of proxy servers:

Proxy
Proxy
Proxy List
Proxies
Proxy Websites
Proxy Sites
Proxies
Change Settings on an Individual Computer
This tip on unblocking a web site usually only works on individual computers that connect directly to the internet. If you are using a computer on a network connected to a firewall overseen by an administrator – the chances are that this strategy will not be effective.

Obviously if you are an individual computer that has either special blocking software or browser options set to block a specific web site, you may be able to change the setting or disable the blocking software. If the browser you are using is blocking your web site, you will be able to easily change the settings, usually by clicking the tools tab and reconfiguring the options or security tabs located in the browsers. Another work around for a browser that is blocking your web site is to download and use a different browser. For those that have MS Internet Explorer, simply download and use Firefox or vice versa.

For those that are working on an individual computer with special software used to block your web site, you will need to somehow disable the software. You can delete the software, stop the software from loading the next time you start up the computer, or shutdown the software while it is running using the CTRL+ALT+DEL keys (please note: these techniques might not work for all software programs).

Use the IP Address Instead of URL
In some cases, it is possible to type in the IP address instead of using the URL. The URL is the written web address (e.g., www.mywebsite.com). However, even though we type in letters or words into our browser, the internet and World Wide Web translate these URLs into an IP address such as 99.121.224.67. Sometimes the software or browser will not block an IP, however if your software is able to map the IP address using a reverse DNS look up your site will ultimately stay blocked.

Use URL Redirects
There are a few web sites that offer URL redirects. For instance, you can create a new URL for the blocked web sites using these redirect services. Once you create a redirect, enter the new URL and have the service forward you to the blocked web site. In certain situations these new URLs are redirected and do not change allowing you to access banned sites. Two types of redirection services include Tinyurl.com and Snipurl.com

Answered at 10:46 AM on February 06, 2009

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How can i make speed of my pc better?

Asked by Vikram Gupta in Computers & Technology at 10:36 AM on February 26, 2009

msg4hk's Answer

By following a few simple guidelines, you can maintain your computer and keep it running smoothly. This article discusses how to use the tools available in Windows XP Service Pack 3 (SP3) and Windows Vista to more efficiently maintain your computer and safeguard your privacy when you're online.

Free up disk space
By freeing disk space, you can improve the performance of your computer. The Disk Cleanup tool helps you free up space on your hard disk. The utility identifies files that you can safely delete, and then enables you to choose whether you want to delete some or all of the identified files.
Use Disk Cleanup to:

• Remove temporary Internet files.
• Remove downloaded program files (such as Microsoft ActiveX controls and Java applets).
• Empty the Recycle Bin.
• Remove Windows temporary files.
• Remove optional Windows components that you don't use.
• Remove installed programs that you no longer use.

Tip: Typically, temporary Internet files take the most amount of space because the browser caches each page you visit for faster access later.

Speed up access to data
Disk fragmentation slows the overall performance of your system. When files are fragmented, the computer must search the hard disk when the file is opened to piece it back together. The response time can be significantly longer.

Disk Defragmenter is a Windows utility that consolidates fragmented files and folders on your computer's hard disk so that each occupies a single space on the disk. With your files stored neatly end-to-end, without fragmentation, reading and writing to the disk speeds up.

When to run Disk Defragmenter
In addition to running Disk Defragmenter at regular intervals—monthly is optimal—there are other times you should run it too, such as when:

• You add a large number of files.
• Your free disk space totals 15 percent or less.
• You install new programs or a new version of Windows.

Detect and repair disk errors
In addition to running Disk Cleanup and Disk Defragmenter to optimize the performance of your computer, you can check the integrity of the files stored on your hard disk by running the Error Checking utility.

As you use your hard drive, it can develop bad sectors. Bad sectors slow down hard disk performance and sometimes make data writing (such as file saving) difficult, or even impossible. The Error Checking utility scans the hard drive for bad sectors, and scans for file system errors to see whether certain files or folders are misplaced.

If you use your computer daily, you should run this utility once a week to help prevent data loss.

To run the Error Checking utility:

1. Close all open files.
2. Click Start, and then click My Computer.
3. In the My Computer window, right-click the hard disk you want to search for bad sectors, and then click Properties.
4. In the Properties dialog box, click the Tools tab.
5. Click the Check Now button.
6. In the Check Disk dialog box, select the Scan for and attempt recovery of bad sectors check box, and then click Start.
7. If bad sectors are found, choose to fix them.

Protect your computer against spyware
Spyware collects personal information without letting you know and without asking for permission. From the Web sites you visit to usernames and passwords, spyware can put you and your confidential information at risk. In addition to privacy concerns, spyware can hamper your computer's performance. To combat spyware, you might want to consider using Microsoft Windows Defender, which is included in Windows Vista, and is available as a free download for Microsoft XP SP2. Alternatively, there are other free anti-spyware software programs available.

Learn all about ReadyBoost
If you're using Windows Vista, you can use ReadyBoost to speed up your system. A new concept in adding memory to a system,

Answered at 11:07 AM on February 26, 2009

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How to block a site ?

Asked by Ravi Teja in Computers & Technology at 8:50 PM on February 05, 2009

msg4hk's Answer

Internet Explorer version 5 and later offer the ability for heighten security and privacy. You can block a site by following the directions below:

1. Load your Internet explorer
2. Click Tools
3. Click Internet Options
4. Click the Privacy tab
5. Under the Privacy window, Click Sites
6. Type in the site address that you want to Block and Click OK. Remember this technique only blocks on one site at a time. Parental control software will allow you to block multiple sites and categories.

Answered at 10:43 AM on February 06, 2009

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What is main purpose to perform Bhastrika Pranayaam?

Asked by Sanjay in Fitness at 2:23 PM on January 07, 2009

msg4hk's Answer

Bhastrika is a powerful exercise. A combination of Kapalabhati and Ujjayi makes up Bhastrika. Practise Kapalabhati and Ujjayi to start with. Then you will find it very easy to do Bhastrika.

Benefits of Bhastrika Pranayama:

1. Relieves inflammation of the throat
2. Increases gastric fire
3. Removes diseases of the nose and chest and eradicates asthma etc.
4. It gives good appetite.
5. It breaks and dissolve the tumors.
6. It enables one to know the Kundalini.
7. It removes all diseases which arise from excess of wind, bile and phlegm.
8. It gives warmth to the body.
9. Purifies the Nadis considerably
10. Very much useful in Muscular Dystrophy and Oxygen deficiency disorders.
11. This Pranayama brings about a proper balance of the three Doshas i.e. Vata, Pitta, and Kapha, and maintains their balance. Blood is purified and the body gets rid of foreign objects and toxins.
12. Stabilizes Prana and calms mind, and helps the upward journey
The practitioner will never suffer from any disease. He will always be healthy. You can practise Bhastrika in the following manner. There is some slight change in the end. Having inhaled and exhaled quickly twenty times, inhale through the right nostril, retain the breath as long as you can do it comfortably and then exhale through the left nostril.
Incase both the nostrils do not open on account of ailments like severe cough or sinus etc., for such persons they should first close the right nostril and do respiration (exhalation as well as inhalation) through the left nostril. Then the left nostril should be closed and respiration should be done by the right nostril. This method of alternate breathing should be continued at the desired speed viz. slow, moderate or fast, till both the nostrils open simultaneously. Then at the end Pranayama should be completed by doing Recak and Pruaka through both Ida and Pingala.

While inhaling in the process of doing Bhastrika make a vow and focus in your mind as if all the divine powers, purity, peace and joy, all that is good in the universe around you is entering inside your body and that you are getting filled with the divine powers. Pranayama done with this kind of vow in mind imparts a special benefit to the individual.

While doing this Pranayama keep both the eyes closed and mentally chant the mantra “OM” throughout the exercise of Pranayama.

Answered at 4:34 PM on January 09, 2009

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HI YAARO IWANT TO PURCHASE A LCD TV CAN U TELL ME 42 INCH ME KAUN SA MODEL BEST RAHEGA KIS COMPANY KA?

Asked by NIKHIL BATRA in TV & Radio at 3:55 AM on February 03, 2009

msg4hk's Answer

Sony ki Bravia series ya fir LG ki Scarlet series hi best hai. Select from these series.

Answered at 3:38 PM on February 03, 2009

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What is Prebinding in Mac OS X? ?

Asked by Abhijit Naya in Computers & Technology at 9:30 AM on January 19, 2009

msg4hk's Answer

Prebinding is a method for reducing the time it takes to launch executables in the Mach-O file format. For example, this is what Mac OS X is doing when in the "Optimizing" stage of installing system software or certain applications.

Prebinding looks up memory offsets of symbols in libraries that the program is using before the program is launched, and stores this information ahead-of-time, so that the computer need not look up offsets repeatedly on each launch of the application.

Prebinding has changed a few times within the Mac OS X series. Until 10.2 prebinding only happened during the installation procedure (the aforementioned "Optimizing" stage). From 10.2 through 10.4 the OS checked for prebinding at launch time for applications, and the first time an application was run it would be prebound. So subsequent launches would be faster. This could also be manually run, and some OS-level installs did run this. In 10.5 Apple has changed the location of the prebinding information. It has moved from the front of each Mach-O executable to a shared cache on the computer.

Answered at 10:21 AM on January 19, 2009

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hi! i m 19yr boy my height is 5foot 2inches. i want to increase my height is there any way to increase my height? thanx in advance!

Asked by Ashish Vats in Fitness at 7:22 PM on October 25, 2008

msg4hk's Answer

The bone structure must remain elastic if one is to become taller. One must take exercise regularly. I suggest the following exercises will help one gain height:

(i) Stand in an open space in attention position. In hale deeply through the nose and extend yours arms lifting then slowly up to your shoulders. Keep your arms straight. Hold that position for
some time and then take the arms backwards as far as they will go. No inhale again the release your breath slowly, resuming the former position.

(ii) Stand with your arms straight at right angles to your body. Lift the arms vertically and then bring them to the level of the shoulders. Do not exhale in the process, but stand on your toes, lifting your heels as far as they will go. Exhale slowly after some moments and resume the earlier position.

(iii) Extend your arms forward up to the level of the shoulders. Inhale and fill your lungs to about one-third of their capacity. Wait for a few moments and then take your arms above your head. Now move them in a circular motion-taking them behind your back and in the former position again. Exhale slowly.

Answered at 12:06 PM on October 29, 2008

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