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Top500, the Supercomputer Site, as its tagline goes, has just released the names of the top 10 fastest computers of the world. This new list differs from the site’s June 2008 release owing to several changes in the evaluation process. The TOP500 list is compiled by Hans Meuer of the University of Mannheim, Germany; Erich Strohmaier and Horst Simon of NERSC/Lawrence Berkeley National Laboratory; and Jack Dongarra of the University of Tennessee, Knoxville.

The evaluation is done on the basis of the rate at which a computer can crunch numbers using floating point operations.

According to the list, the following are the top five supercomputers-

• At number 5  is China’s new gift to the world, Tianhe-1 (which etymologically means “River in Sky“ system. It has been installed at the National Super Computer Center in Tianjin, China. The system is mainly used to Tianhe-1 sports a hybrid design with Intel Xeon processors(6144) and AMD GPUs(5120) used as accelerators. With 563 teraflops, it can transact more than 500 trillion operations per second.
• The fourth slot has been occupied by Jugene at Julich Supercomputing Centre in Germany, with a computing power of 825.5 teraflops. It was no. 3 in the June list. It is an IBM BlueGene/P supercomputer and uses low- power chips. These 292000 chips makes it the fastest in England.
• Kraken, another upgraded Cray XT5 system at the National Institute for Computational Sciences/University of Tennessee, claimed the No. 3 position with a performance of 832 teraflop/s (trillions of calculations per second).It sports 100,000 dual-core Opteron processors made by AMD, used typically in servers and mainly work-stations. (more…

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A year after the horrific Mumbai 26/11 attacks, the government, on tuesday, 1st december, has finally banned 20 million mobile handsets that do not have an IMEI (International Mobile Equipment Identity) number in order to stop the usage of such phones by terrorists to make communications to high commands and launch attacks.

Wikipedia terms the International Mobile Equipment Identity number  as one unique to every GSM and WCDMA and iDEN mobile phone, as well as some satellite phones. It is usually found printed inside the battery compartment of the phone. It can also be displayed on the screen of the phone by entering *#06# into the keypad.

Thus, whenever a phone is lost, or the SIM card is replaced, then via the IMEI number, it is possible to track or block such a phone.

Most of the Chinese phones that have flooded the market with cheap and economical phones with high-end features do not carry an IMEI number and hence it becomes difficult to track these phones. Reports from intelligence authorities state that these very phones have been used to communicate during the Mumbai attacks.

(more…

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Got to make an important call? Balance Nil? Don’t feel like stepping out to recharge your Vodafone prepaid sim?

Here’s what you need to do then.

Recharge online!

Log into Vodafone and click on Prepaid > Recharge online menu option. Just a requirement- either you need is a valid credit card or an online banking account to make payments for your recharge amount.

After logging into Vodafone, you need to select your recharge amount and fill in your details (name, Vodafone number, email id). Click ‘Enter’.

When asked to reconfirm your details, please go through them carefully. Post a payment option from the drop-down and click on ‘Submit’

Vodafone will redirected to the payment interface you chose, that is, either credit card gateway or internet banking.

Confirm the payment at the credit card/ bank payment gateway – Carefully enter your authentication details at the credit card/ bank payment gateway and confirm the payment amount. Your account will be debited for the recharge amount.

(more…

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Twitter is fun and we all know that. But in case your GPRS freaks you out or perhaps you are unable to see the EDGE or GPRS icon at the top of your mobile desktop or for some reason, your mobile internet is not working properly, Airtel brings to you exclusive freedom to tweet.

Now you can continue tweeting even if your mobile net is not working.

How?

Simple

Via SMS!

All you have to do is sms “Signup” and send it to 53000. Complete the formalities and then start tweeting. That’s it. No need to open your mobile browser now and type www.twitter.com

(more…

1 person likes this post.

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Opera 10 Mobile Beta version for Windows Mobile is finally launched. After the resounding success of Opera 9 and its seriess, the Opera team decided to launch Opera 10 that looks quite similar to the symbian platform browser in order to integrate all its browsers with the same interface.

Among the newest features are speed dialing, tabbed browsing, password manager and a unique web browsing compression technology, Opera Turbo.

Following are excerpts from the Opera website-

(more…

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Vodafone has launched a new plan to let its prepaid customers  avail the pay per second tariff for both local and STD calls. New  subscribers get an additional bonanza of free SIM card bundled with lifelong validity. The main purpose of launching this plan is to provide customers with excellent customer service and among the best GSM network in the state.

This is what the tariff for Mumbai says-

” Now make local and STD calls from Vodafone to Vodafone @ 1p/sec with the Rs 52 Recharge Card.

Validity 365 days

Note:

Calls from Vodafone to other mobile phones @ 1.2p/sec ”

The plan has been priced differently for different states. Currently the plan has been launched in the  following states with the mentioned prices-

Andhra Pradesh- Rs. 66

Chennai- Rs. 63

Gujarat- Rs. 58

Karnataka- Rs. 74

Kerala- Rs. 64

Maharashtra and Goa- Rs. 64

Mumbai- Rs. 52

Punjab-Rs.  66

Rajasthan- Rs. 69

Tamil Nadu (except Chennai)- Rs. 63

West Bengal- Rs. 63

The SMS, Roaming and ISD rates remains same as per the customers’ base tariff plan.

For Karnataka, Vodafone has included several options

“With the Rs 251 Recharge Card, now we can enjoy:

Talktime of Rs 225.50

Local & STD calls @ 1p/sec

Note:

No specified validity attached to talktime

Except Rs 28 SMS Pack @ 10p/SMS & Rs 49 SMS Pack @ 2p/SMS, no other Bonus Cards/Packs are applicable on this recharge. ”

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Following the leads of telecom service providers Tata and Aircel, Bharti Airtel has also launched oen second billing plan. According to the new scheme, customers will be charged one paise for one second to any local and nation number in the same network and Rupee 1.20 paise for any external networks.

Airtel distribution network currently covers around 4.25 lakh cities and villages. Its network covers 110 million customers, has 100,000 sites and this new Freedom scheme will be available nationwide. President of mobile services, Atul Bhandari stated that the scheme has been dessigned “In keeping with our ethos of providing the best to our customers” and that the company is ” delighted to offer a one-second pulse to customers.”

Incidentally Aritel has also another scheme that coincidentally releases with Vodafone’s. Called Airtel Advantage, subscribers to this plan will have to pay  50 paise for every minute while calling local and national numbers in same network and 60 Paise for those with external networks.

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Popularity: 21%