Monday, May 08, 2006

Semantic Web

The Semantic Web proposes to help computers "read" and use the Web. The big idea is pretty simple -- metadata added to Web pages can make the existing World Wide Web machine readable. This won't bestow artificial intelligence or make computers self-aware, but it will give machines tools to find, exchange and, to a limited extent, interpret information.
It's an extension of, not a replacement for, the World Wide Web.

Anakin Skywalker is Luke Skywalker's father.

It's easy for you to figure out what this sentence means -- Anakin and Luke Skywalker are both people, and there is a relationship between them. You know that a father is a type of parent, and that the sentence also means that Luke is Anakin's son. But a computer can't figure any of that out without help. To allow a computer to understand what this sentence means, you'd need to add machine-readable information that describes who Anakin and Luke are and what their relationship is. This starts with two tools -- eXtensible Markup Language (XML) and Resource Description framework (RDF).
That probably sounds a little abstract, and it is. While some sites are already using Semantic Web concepts, a lot of the necessary tools are still in development.

Friday, May 05, 2006

AJAX - new buzz word in web technology

Ever thought of a web page working like a desktop application, not keeping you staring at the Hour-Glass icon/blank page for each interaction with the server? AJAX is the perfect solution. This is going to change the whole web apps world.

AJAX - is the acronym for Asynchronous Javascript And XML. AJAX gains its popularity by allowing data on a page to be dynamically updated without having to make the browser reload the page. This term has been made famous by some of Google's latest web apps. At the top of this list is Google Suggest, which gives you suggestions (go figure) on what you are searching for as you type based on popularity of the search term. If you aren't familiar with Google Suggest, check it out.

Is AJAX a new technology? The answer would be both Yes and No. A proper answer would be a new application of current technologies.

The JavaScript is the real meat and potatoes in AJAX. It handles the change detection, data request and receipt, and placing the data on the page.
for more technical reading...

Thursday, May 04, 2006

10 Reasons Not to Buy the iPod

  1. Battery replacement. Most of the other portable players let you change their batteries quite easily. Not the iPod.
  2. iTunes Music StoreThe biggest plus about the iPod is the iTunes music service. Sadly, for whatever reason, Apple doesn't think India is important enough to have it.
  3. Video playback is pretty basic While you can definitely play some good quality video on the iPod, if you want to output it to bigger display (say when you're traveling and your hotel has a nice big-screen TV), then you gotta buy some expensive accessories!
  4. Shifting songs via iTunes is a PAINWhy should you be limited to shifting songs only through iTunes? Every time you get a new song from somewhere, you first need to add it to your iTunes library. Only then can you move it to your iPod.
  5. The photo feature is sillyWhile most portable players out there let you copy images through direct drag and drop, iPod does it differently. It converts and optimizes each photo into a proprietary format. This is pretty stupid because if you want to actually SHARE your photographs (like leave a copy behind), you'll need to carry the original JPEGs separately. Also, you can't directly view these JPEGs on the iPod. Pretty dumb if you ask me!
  6. Doesn't play FMFM is no more the boring monotonous A.I.R variety. With airwaves opening up and cities getting up to 6 radio stations, having FM is a good thing and every competing portable media player out there today incorporates FM
  7. Slow interfaceDespite the Broadcom chip inside and Apple's claims about how great its hardware is, watching videos and forwarding/skipping through them leaves the hardware quite breathless and can be irritating at times.
  8. Scratch magnetThe shiny black surface of the iPod (Nano and 5th Gen) gets scratched even if you keep it inside its inadequate cover. The scratching can get so bad that the screen display becomes 'un-viewable', which beats the whole point of having the device!
  9. It syncs to just one PCEach iPod can be synced to just one PC at a time. This means that if you have synced it to your desktop, it won't work with your notebook, unless you re-sync it, which will then result in a 'remove-all previous songs' accident. What a hassle!
  10. Everyone has oneYeah, I accept it looks pretty cool and is real slick, but everyone has one. Do you really want to be a part of the herd?

Bill Gates wishes he wasn't richest in world

Microsoft Corp. Chairman Bill Gates said he wished he were not the world's richest man.
"I wish I wasn't. There is nothing good that comes out of that," said Gates, whose personal fortune has sunk by billions since last week when the software giant disappointed investors by saying new investments would crimp earnings.
The corporate leader who made Microsoft into the world's largest software maker -- and who is also one of the biggest philanthropists -- is seen as a man who does not like publicity. He explained that he did not like the attention of being the world's richest.
"You get more visibility as a result of it," he said during an interview conducted by CNBC reporter Donny Deutsch in front of a crowd of people attending a Microsoft advertising event.
Read More...

Hospital PCs are source of infection

Computer keyboards used in hospitals are a reservoir for bacteria that staff could pass to patients and need to be disinfected every day, a new study warns.
Researchers collected samples from 25 computer keyboards at various locations inside University of North Carolina hospitals and found that each keyboard was infected with at least two types of bacteria, reports the science portal HealthCentral.
William A. Rutala at the University of North Carolina Health Care System and other researchers said every keyboard tested positive for coagulase-negative staphylococci, a major cause of bloodstream infection in hospitalised patients. They also found 13 other types of bacteria on the keyboards. The researchers also tested different types of disinfectant wipes to clean the keyboards.