Techno WeBlog

An icon is a graphic image, a small picture or object that represents a file, program, web page, or command. Icons play an important roll in the look & feel of a web page or a desktop application. Ever since internet got it’s popularity, Icons are playing an important roll to give a great look and feel to the web pages.

Below are list of ten icon search engines, which will help you to easily find the required icons and save you the difficulty of using traditional search engines.

1. IconSeeker
   
2. IconFinder
   
3. IconSearch
   
4. IconLet
   
5. IconLook
   
6. VeryIcon
   
7. EasyIconFinder
   
   
8. IconsPedia
   
9. FindIcons
   
10. ArtistValley
    

You Know Some More? Share them with everyone by adding them in the comments.

Filed under: Link Bucket, Web | 1 Comment »

Recently one of my friend asked me to write a function in PHP for multiplying two numbers without * or / operators. Also we should not use any loops. I got the following solution.

function mul($a,$b)
{
if($b==1){return $a;}
return $a+mul($a,$b-1);
}

echo mul(5,6);

One more solution which i found is as follows. But is is using the division(/) operator.

function mul($a,$b)
{
return $a/(1/$b);
}

echo mul(15,3);

Filed under: PHP | No Comments »

After digging to a depth of 100 meters last year, Russian scientists found traces of copper wire dating back 1000 years, and came to the conclusion that their ancestors already had a telephone network one thousand years ago.

So, not to be outdone, in the weeks that followed, American scientists dug 200 meters and the headlines in the US papers read: ‘ US scientists have found traces of 2000 year old optical fibers, and have concluded that their ancestors already had advanced high-tech digital telephone 1000 years earlier than the Russians.

One week later, Indian daily newspapers reported the following:
After digging as deep as 500 meters, Indian scientists have found absolutely nothing. They have concluded that 5000 years ago, their ancestors were already using Bluetooth and Wireless technology

Filed under: Geeky-Fun | No Comments »

Two Years back i have written a post about the MVC(Model-View-Controller) song in this blog. Yesterday while surfing the web I found a video of James singing it live on WWDC 2003 in youtube. Here is the youtube video:

And those who wish to read the lyrics, check it here… Song about MVC…..Yeah, yeah, yeah

.

Filed under: PHP, Web | No Comments »

In the late 90’s where internet start its booming, The content(Web page/Images/Video/MP3 etc….) was delivering from a central server. This affects the loading and response time if large number of users hits the same server at a time. So people strats to thisnk how to deliver the contents more fastly. One solution was deploying the content across multiple, geographically placed servers. It will make the pages load faster from the user’s perspective. This is called as a CDN. “CDN stands for content delivery network or content distribution network”. This service is effective in speeding the delivery of content of Web sites with high traffic and Web sites that have global reach.

So, CDN is a network of servers that delivers a Web page(Mostly static contents like html pages, Images, Videos, CSS, JS etc..) to a user based on the geographic locations of the user. A CDN copies the static contents of a Web site to a network of servers that are dispersed at geographically different locations, caching the contents of the page. When a user requests a Web page that is part of a CDN, the CDN will redirect the request from the originating site’s server to a server in the CDN that is closest to the user and deliver the cached content. The CDN will also communicate with the originating server to deliver any content that has not been previously cached.

In fact, 80-90% of the end-user response time is spent downloading all the components in the page: images, stylesheets, scripts, Flash, etc. This is the Performance Golden Rule and idea behind CDN. Rather than starting with the difficult task of redesigning the application architecture to speed up the page load time, it’s better to disperse the static content. This not only achieves a bigger reduction in response times, but it’s easier.(From yahoo performance Guide.)

The closer the CDN server is to the user geographically, the faster the content will be delivered to the user. CDNs also provide protection from large surges in traffic. The process of bouncing through a CDN is nearly transparent to the user. The only way a user would know if a CDN has been accessed is if the delivered URL is different than the URL that has been requested.

Some large Internet companies like google, AOL, MSN etc.. own their own CDN, but it’s cost-effective to use a CDN service provider, such as Akamai Technologies, Mirror Image Internet, or Limelight Networks. For start-up companies and private web sites, the cost of a CDN service can be prohibitive as the underlying network mechanisam is huge cost effective, but if target audience grows larger and becomes more global, a CDN is necessary to achieve fast response times.

http://developer.yahoo.com/performance/rules.html

Filed under: Web, What is? | No Comments »