Friday, August 20, 2010

Buyers' Guide - Laptops



Toshiba laptops from 1993
Mobile computing has come a long way since 1993
Computer specifications are very confusing. Know the difference between graphics cards that support new bus architectures and ones that don't? No? Us neither.
The main thing to think about when buying a laptop is what you are going to be using it for. There's no point in spending £2,000 on something that could fly you to the moon (probably) if all you want to do with it is play solitaire and watch Mary Poppins on DVD.
There are five main types of users:
Despite almost every laptop coming with inbuilt wireless technology, hard drive and sound card, the difference between different models can be stark.
While price is a good indication it always pays to shop around.
The final general thing to remember about laptops is that once purchased it is a lot more difficult to upgrade components than in their desktop counterparts.
Are you the sort of user who wants to use the internet, check email, watch DVDs, listen to music and not a lot more? Then you're a casual user.
People after this sort of laptop are often oversold more expensive products by pushy sales assistants as these users often know least about what they are looking for.
MORE BUYERS' GUIDES
Getting something relatively cheap that still does everything you need it to do has become increasingly easy due to the swift price drop of laptops in recent years.
Though it might not be light and may not be have supermodel looks but it should do everything you need it to do.
Here are a few things you should look for:
Price - Don't pay more than £400 for this sort of laptop. You can even now get laptops for under £300 (or free if you are willing to sign up for an 18-month mobile broadband deal, though you should proceed with caution) if all you need to do is very simple tasks.
Memory/Hard drive - Around 2GB of RAM should suffice. You could get away with 1GB if you are not conducting multiple tasks at once. Safe to say that the more RAM the better.
Graphics - For the sort of price you are looking to spend then you are pretty much stuck with what you are given.
This is generally "shared" graphics which means that the integrated card shares memory with the main operating system. Rubbish for gaming or complex multimedia tasks but fine for everyday use.
Always on the go? Tired of lugging around more luggage than you could ever possibly carry? Then you will need something light that slips into your hand luggage.
Acer laptop
One person's netbook might be called a laptop by someone else
Laptop technology is increasingly moving towards the portable end of the market and battery life of new laptops, where once a 3hr stint without a charge was considered revolutionary, is pushing towards and even exceeding 10 hours - although this can be hard to achieve.
Here a few things to look for:
Weight - Weight is all important. As a rule, the lighter it is the more expensive it will be. Ideally, choose a laptop with a weight around 2kg or less. Any more and that laptop bag will start getting uncomfortably heavy.
Battery life - Chances are that you will be away from a plug socket for long periods of time. If you're out on the road all day then a battery life of eight hours would be ideal but very few laptops offer that.
Around 4/5 hours is around the industry standard for mid-range light laptops, however laptops advertising a 12-hour battery life are now on sale, though many reviewers have said this claim is still optimistic.
Size - If you are travelling then screen size is a compromise you may have to make. Average sizes are around 13 inches but can be as small as 10.
If you are not doing complex tasks or wanting to watch DVDs then a netbook might be best. They have smaller memories and longer battery life. The thinnest laptops can be under 3cm in width but really you should aim at no more than 4cm.
Optical drives - or the lack of them. Many "ultraportables" - as they are known - have not included a disc drive to cut down on weight and width.
If you intend to watch DVDs and aren't comfortable, or do not have sufficient free disc space, with them on your hard drive then an optical drive is a necessity.
Hard drive - If there is no internal optical drive then the hard drive needs to be larger to incorporate items that you might have kept on DVD. Around 160GB could be plenty if you don't have a large media library.
If you want to hoard every film made in Los Angeles then the sky is the limit (though most portables don't go much about 320GB).
If you don't use your computer on the go that much but want to replace your cumbersome desktop with something less bulky then many laptop manufacturers will cater to your needs.
Because there is less worry about battery life (because it will be plugged in most of the time) and weight (because it will not be transported that often) they are often cheaper when compared to similar spec lighter machines.
But, if you are replacing a desktop, it will be more expensive like-for-like compared to the computer you are replacing.
Here a few things to look for:
Price - How long is a piece of string? If you really want something that would replace a decent (£500) desktop then the price will be approaching £1,000.
With a little bit of shopping around, however, and maybe a little bit of bartering that cost can come down.
Specifications - The trick here is to aim high. Because weight is not a top priority you can get heavier parts with a high spec for a low price. 4GB of RAM, large (350GB+) hard-drive and quick (2.2Ghz dual core or higher) processor are all a priority to run the wide variety of tasks a family machine has to deal with.
Size - With a large screen comes added weight. A normal laptop screen is about 15 inches in size and really, it depends on how often you want to move the machine around.
A 19 inch screen in no good for checking an email on a train but would be fantastic to watch a movie on. Just remember that the smaller it is the more portable the laptop becomes.
Extras - Blu Ray is becoming more common and should really be included if you intend to "future-proof" your machine as much as possible. That said, many analysts say that the switch to Blu Ray as the main drive is unlikely to happen until 2013.
Ever thought of yourself as a bit of a Rankin or a Spielberg? While video and photos can now be edited on nearly every machine you would buy (helped with Apple or Microsoft's bundled software) if you are planning to do more complex edits then more complex software - Adobe's Creative Suite, Pro Tools and Final Cut are good examples - will need to be purchased.
Laptop
Laptops can be power hungry
Because of the strain put on laptops from rendering video and large image files, computers need a lot of memory and large hard drives. One minute of high definition video can take 1GB of disc drive space and image file sizes are growing exponentially.
Here a few things to look for:
Memory - The bigger the better. 4GB should be fine the moment but a new wave of machines with larger ram capacity is expected in the near future.
Graphics - Important for editing images and video. A dedicated graphics card (with its own memory) is becoming a necessity if you want to undertake this sort of work, ranging from 128MB to 1GB. This decision has to be influenced by your budget.
Ports - If you're using a lot of complex machinery - cameras, musical instruments etc - then you need to make sure that it will connect to your laptop without much trouble.
Standard connections should be three or four USB ports (preferably USB 3.0 though this is very new technology) and it could be the case that you need a Firewire port. Laptop manufacturers often choose to exclude this port.
Fan - If you are recording music using your laptop then does it need to be silent? There are a number of almost silent fans on the market but are quite expensive.
It is also the case that modifications to this part of the laptop can be difficult so if you require a silent machine then it may be best to consult a specialist music supplier.
There was a time when the PC dominated the games market. While the hardcore gamers still use them - specs are generally higher than on a console - many have shifted across to the Xbox, Playstation or Wii because of the ease of use and cost.
Gaming machines are expensive - there is no real way around it. To run the latest software, specifications need to be high and so do not come cheap.
A number of serious gamers refuse to switch to laptops because they often cannot be fully customised or upgraded with ease.
Here are a few things you should look for:
Size - There is no way of making a gaming sleek. To have the screen and the hardware for gaming it cannot really be an easily portable machine.
Processor - Quad core (the equivalent of having four processors in the same machine) is slowly becoming more common in gaming machine.
If there has to be a compromise (because of cost) then general wisdom is that is better to sacrifice a little processor speed rather than graphics.
Graphics - New games on the market require specialist graphics cards. This is vital and new models on the market offer 1GB dedicated memory.
This means that it can process a large amount of video information in a short amount of time. Serious gamers are not really looking at any less.
Also important for graphics is a full HD (1920x1080px) display, or at least somewhere close to that resolution to get the best from your flashy new graphics card.
Memory - While less important because of the graphics card, it would be unwise to risk anything less than 4GB.
If other actions your computer might be conducting get in the way of the game, your character could come to a juddery halt as stumbles along at three frames per second just as you get to the end of a level.

Monday, August 9, 2010

வைரமுத்து கவிதை about Amma

Saturday, August 7, 2010

நட்பு



அழுதவுடன் அரவணைக்கும்
அன்னையிடம் ஆரம்பிக்கும்
அந்த அழகிய நட்பு !!!

ஆள் கொஞ்சம் வளர்ந்திடவே
ஆடாத ஆட்டம் ஆட
ஆள்சேர்த்து ஆர்பரிக்கும்
ஆண்களின் நட்பு !!!

இவன் வீட்டு சாப்பாடு
இனம் விட்டு இடம் மாறி
இளம் சிட்டாய் இவ்வுலகையே
இரண்டக்கிடுமே இந்த நட்பு !!!

ஈயாய் ஒற்றிக்கொள்வோம்
ஈருயிராய் வாழ்ந்திடுவோம்
உள்ளதெல்லாம் செலவழிப்போம்
ஊரு ஊராய் சுற்றிடுவோம் !!!

எந்த ஜாதியும் அறியமாட்டோம்
ஏழை ஏக்கமமும் உணரமாட்டோம்
ஐந்து விரலாய் உதவிக்கொள்வோம்
ஒன்றாய் தட்டில் உணவு கொள்வோம் !!!

ஓரிடத்தில் இல்லா விட்டாலும்
ஓருயிராய் நினைவு கொள்வோம்
ஓளவை வயது வரை ஒற்றுமையாய்
உலகை அளப்போம் !!!! 

Thursday, August 5, 2010

Endhiran Song & Trailer







Trailer:








Tuesday, August 3, 2010

Siva's Favorite Tamil songs

சின்ன தாய் அவள்..  From தளபதி







பிள்ளை நிலா....from  நீங்கள் கேட்டவை










வச்சாலும் வைகாம போனாலும் ..மைக்கல் மதன காம ராசன்







Oru Koottu Kiliyaga Songs by Padikkathavan 

My friend satish's favorite song





Saturday, July 31, 2010

Scotland,UK


Buchanan bus station,Glasgow 





Dundee  University graduation day 










on the way to Aberdeen 















My Pic






Drinking alcohol can 'reduce severity' of arthritis



Social drinkingMore research is needed to find out why alcohol can have an effect on arthritis symptoms
Drinking alcohol can not only ease the symptoms of rheumatoid arthritis it appears to reduce disease severity too, research suggests.
Scientists at the University of Sheffield asked two groups of patients with and without the disease to provide details of their drinking habits.
They found that patients who had drunk alcohol most frequently experienced less joint pain and swelling.
Experts say this should not be taken as a green light for drinking more.
In the study, 873 patients with rheumatoid arthritis (RA) were compared to 1,004 people who did not have it.
Both groups were asked how often they had drunk alcohol in the month running up to the start of the study.

Start Quote

It's possible that the anti-inflammatory and analgesic effects of alcohol may play a role in reducing the severity of symptoms”
Dr James MaxwellConsultant rheumatologist
Patients completed a detailed questionnaire, had X-rays and blood tests, and a nurse examined their joints.
'Less damage'
Dr James Maxwell, consultant rheumatologist and lead author of the study, explained the findings.
"We found that patients who had drunk alcohol most frequently had symptoms that were less severe than those who had never drunk alcohol or only drank it infrequently."
X-rays showed there was less damage to their joints, blood tests showed lower levels of inflammation, and there was less joint pain, swelling and disability in those patients, the researchers found.
They say they do not yet understand why drinking alcohol should reduce the severity of RA, and people's susceptibility to developing it.
Dr Maxwell said: "There is some evidence to show that alcohol suppresses the activity of the immune system, and that this may influence the pathways by which RA develops.
"Once someone has developed RA, it's possible that the anti-inflammatory and analgesic effects of alcohol may play a role in reducing the severity of symptoms," he added.
The authors say that further research is needed to confirm the results of the study and to investigate how and why alcohol has an effect on rheumatoid arthritis.
Risk and rewards
Previous studies have shown that alcohol may reduce the risk of developing the disease in the first place.
Similarly, in the current study non-drinkers were four times more likely to develop RA than people who drank alcohol on more than 10 days a month.
A spokeswoman for Arthritis Research UK, which co-funded the research, said: "We would not want people with RA to take this research to mean that they should go out and start drinking alcohol frequently and in large amounts as this could be detrimental to their health."
She said some RA treatments, like the immunosuppressant drug methotrexate, could damage the liver when taken with large amounts of alcohol.
The patients in the study did not drink more than the recommended limit of 10 units of alcohol a week.

Facebook data harvester speaks out




Facebook torrentThe torrent is attracting hundreds of downloads
The man who harvested and published the personal details of 100m Facebook users has spoken out about his motives.
Ron Bowes, a Canadian security consultant, used a piece of code to scan Facebook profiles, collecting data not hidden by users' privacy settings.
The list, which contains the URL of every searchable Facebook user's profile, name and unique ID, has been shared as a downloadable file.
Mr Bowes told BBC News that he did it as part of his work on a security tool.
"I'm a developer for the Nmap Security Scanner and one of our recent tools is called Ncrack," he said.

Related stories

"It is designed to test password policies of organisations by using brute force attacks; in other words, guessing every username and password combination."
By downloading the data from Facebook, and compiling a user's first initial and surname, he was able to make a list of the most common probable usernames to use in the tool.
The three most common names, he found, were jsmith, ssmith and skhan.
In theory, researchers could then combine this list with a catalogue of the most commonly used passwords to test the security of sites. Similar techniques could be used by criminals for more nefarious means.
Mr Bowes said his original plan was to "collect a good list of human names that could be used for these tests".
"Once I had the data, though, I realised that it could be of interest to the community if I released it, so I did," he added.

Start Quote

I am of the belief that, if I can do something then there are about 1,000 bad guys that can do it too”
Ron BowesSecurity consultant
Mr Bowes confirmed that all the data he harvested was already publicly available but acknowledged that if anyone now changed their privacy settings, their information would still be accessible.
"If 100,000 Facebook users decide that they no longer want to be in Facebook's directory, I would still have their name and URL but it would no longer, technically, be public," he said.
Mr Bowes said that collecting the data was in no way irresponsible and likened it to a telephone directory.
"All I've done is compile public information into a nice format for statistical analysis," he said
Simon Davies from the watchdog Privacy International told BBC News it was an "ethical attack" and that more personal information had not been included in the trawl.
"This is a reputational and business issue for Facebook, for now," he said
"They can continue to ride the risk and hope nothing cataclysmic occurs, but I would argue that Facebook has a special responsibility to go beyond doing the bare minimum," he added.
Snowball effect
Mr Bowes' file has spread rapidly across the net.
On the Pirate Bay, the world's biggest file-sharing website, the list was being distributed and downloaded by thousands of users.
FacebookFacebook hit its 500m user in mid June 2010
One user said that the list showed "why people need to read the privacy agreements and everything they click through".
In a statement to BBC News, Facebook confirmed that the information in the list was already freely available online.
"No private data is available or has been compromised," the statement added.
That view is shared by Mr Bowes, who added that harvesting this data highlighted the possible risks users put themselves in.
"I am of the belief that, if I can do something then there are about 1,000 bad guys that can do it too.
"For that reason, I believe in open disclosure of issues like this, especially when there's minimal potential for anybody to get hurt.
"Since this is already public information, I see very little harm in disclosing it."
Digital trends
However, he said, it also highlighted a new trend that was emerging in the digital age.
"With traditional paper media, it wasn't possible to compile 170 million records in a searchable format and distribute it, but now we can," he said.
"Having the name of one person means nothing, and having the name of a hundred people means nothing; it isn't statistically significant.
"But when you start scaling to 170 million, statistical data emerges that we have never seen in the past."
A spokesperson for Facebook said the list was "similar to the white pages of the phone book.
"This is the information available to enable people to find each other, which is the reason people join Facebook."
"If someone does not want to be found, we also offer a number of controls to enable people not to appear in search on Facebook, in search engines, or share any information with applications."
Earlier this year there was a storm of protest from users of the site over the complexity of Facebook's privacy settings. As a result, the site rolled out simplified privacy controls.
Facebook has a default setting for privacy that makes some user information publicly available. People have to make a conscious choice to opt-out of the defaults.