Monday, November 7, 2011
IBM, Intel to help India upgrade Aakash PC
PANAJI, INDIA: India is open to collaboration with international companies for future development of Aakash tablet, which could make the low-cost device available for children across the world, Union HRD Minister Kapil Sibal said on Monday.
Sibal, who is here to attend the Goa Think Fest conclave, called upon the companies wanted to collaborate with Indian government on Aakash. "We want the tablet PC to be not only for the children of India, but for the children of the world. IBM and Intel are keen to collaborate with India for further development of this product," he said.
Wednesday, November 2, 2011
OSI Model (Open Systems Interconnections Model)
OSI layer is used in computers for connecting one device with
others or inn between two computers.
OSI has a very
important role in designing a software or connecting devices works on an
applications. This is the Hierarchy of all the protocols.
OSI Model is
defined by the ISO (International standard Organisation).The OSI Model is
introduced in the year of 1970.
It is also
called as Basic Reference Model. The idea behind OSI MODEL is brought by
CHARLES BACHMAN.
SEVEN LAYERS of OSI MODEL
7.
Application Layer
6.
Presentation Layer
5.
Session Layer
4.
Transport Layer
3.
Network Layer
2.
Datalink Layer
1.
Physical Layer
Monday, October 31, 2011
China's Newest Supercomputer Uses Homegrown Chips
China has built its first supercomputer based entirely on homegrown microprocessors, a major step in breaking the country's reliance on Western technology for high-performance computing .
China's National Supercomputer Center in Jinan unveiled the computer last Thursday, according to a report from the country's state-run press. The supercomputer uses 8,704 "Shenwei 1600" microprocessors, which were developed by a design center in Shanghai, called the National High Performance Integrated Circuit Design Center.
Details of the microprocessors and the design center were not immediately available.
The supercomputer has a theoretical peak speed of 1.07 petaflops (quadrillion floating-point calculations per second), and a sustained performance of 0.79 petaflops when measured with the Linpack benchmark. This could place it at number 13 in the world's top 500 supercomputing.
China's Shandong Academy of Sciences built the computer. Officials of the academy could not be immediately reached for comment on Monday.
A report from The New York Times said the supercomputer's name in English was the Sunway BlueLight MPP.
China is increasingly investing in supercomputing technology. Last November, its Tianhe-1A supercomputer briefly grabbed the spot as the world's most powerful, but the computer used chips from Intel and Nvidia. The Tianhe-1A has a theoretical peak speed of 4.7 petaflops and a sustained performance of 2.5 petaflops.
China currently has 61 supercomputers on the top 500 list. In comparison, the U.S. has 255 on the list. Japan's "K Computer" is currently ranked first in the top 500 list, after bumping Tianhe-1A to the second place.
Experts have been anticipating that China would build its own supercomputer, using domestically developed chips. Chinese state-run press hailed the new supercomputer as a symbol of China's strength.
Courtesy PCWORLD
China's National Supercomputer Center in Jinan unveiled the computer last Thursday, according to a report from the country's state-run press. The supercomputer uses 8,704 "Shenwei 1600" microprocessors, which were developed by a design center in Shanghai, called the National High Performance Integrated Circuit Design Center.
Details of the microprocessors and the design center were not immediately available.
The supercomputer has a theoretical peak speed of 1.07 petaflops (quadrillion floating-point calculations per second), and a sustained performance of 0.79 petaflops when measured with the Linpack benchmark. This could place it at number 13 in the world's top 500 supercomputing.
China's Shandong Academy of Sciences built the computer. Officials of the academy could not be immediately reached for comment on Monday.
A report from The New York Times said the supercomputer's name in English was the Sunway BlueLight MPP.
China is increasingly investing in supercomputing technology. Last November, its Tianhe-1A supercomputer briefly grabbed the spot as the world's most powerful, but the computer used chips from Intel and Nvidia. The Tianhe-1A has a theoretical peak speed of 4.7 petaflops and a sustained performance of 2.5 petaflops.
China currently has 61 supercomputers on the top 500 list. In comparison, the U.S. has 255 on the list. Japan's "K Computer" is currently ranked first in the top 500 list, after bumping Tianhe-1A to the second place.
Experts have been anticipating that China would build its own supercomputer, using domestically developed chips. Chinese state-run press hailed the new supercomputer as a symbol of China's strength.
Courtesy PCWORLD
Friday, October 28, 2011
PROTOCOL
A set of rules for the exchange of information, such as those used for successful data transmission.
COMMUNICATION PROTOCOL
A communications protocol is a system of digital message formats and rules for exchanging those messages in or between computing systems and in telecommunications.
TCP (TRANSMISSION CONTROL PROTOCOL)
TCP (TRANSMISSION CONTROL PROTOCOL)
LAYER 4 PROTOCOL
16 Bits data for PORT opening.
The protocol controls the transmission of data to enter the Session, Presentation & Application layer. It is assigned by IEEE in 1974. It is one of the main protocol in computer networking.
LAYER 4 PROTOCOL
16 Bits data for PORT opening.
The protocol controls the transmission of data to enter the Session, Presentation & Application layer. It is assigned by IEEE in 1974. It is one of the main protocol in computer networking.
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