George C. Dimitriou

Technology and Strategy Consulting

Archive for the ‘Computing’

Computers Don’t Save Hospitals Money.

December 03, 2009 By: George Category: Computing, Digital World No Comments →

A  Harvard Medical School study that looked at some of the U.S “most wired” hospital facilities found that computerization of those facilities hasn’t saved them any money or improved administrative efficiency.

The recently released study evaluated data on 4,000 hospitals in the U.S over a four-year period and found that the immense cost of installing and running hospital IT systems is greater than any expected cost savings. And much of the software being written for use in clinics is aimed at administrators, not doctors, nurses and lab workers.

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The Top 100 IT Projects of 2009.

November 24, 2009 By: George Category: Computing, Digital World, Innovation No Comments →

Every year, the InfoWorld 100 Awards celebrate 100 IT organizations that have implemented and integrated technologies in innovative ways in pursuit of concrete business goals. These 100 real-world projects stand as proof that striking a new path in IT can reap deep organizational rewards.

Microsoft Offers First Shot of Barrelfish Operating System.

September 30, 2009 By: George Category: Computing No Comments →

Microsoft has released the first snapshot of the Barrelfish operating system, an OS written specifically for multicore environments.

The Barrelfish team, a group of researchers from Microsoft Research Cambridge and the technology university ETH Zurich, says it is “motivated by two closely related trends in hardware design: first, the rapidly growing number of cores, which leads to a scalability challenge, and second, the increasing diversity in computer hardware, requiring the OS to manage and exploit heterogeneous hardware resources.”

Early rumors are that the OS will be open source and free. This first snapshot release of the code is under a copyright held by ETH Zurich and Microsoft. The full research paper is available here.

Thousands Call for Turing Apology.

September 14, 2009 By: George Category: Computing No Comments →

Thousands of people have signed a Downing Street petition calling for a posthumous government apology to World War II code breaker Alan Turing. Last Thursday the Prime Minister has released a statement , recognizing the “appalling” way he was treated for being gay.

In 1952 Turing was prosecuted for gross indecency after admitting a sexual relationship with a man. Two years later he killed himself.

Alan Turing is most famous for his code-breaking work at Bletchley Park during WWII, helping to create the Bombe that cracked messages enciphered with the German Enigma machines. However, he also made significant contributions to the emerging fields of artificial intelligence and computing.

In 1936 he established the conceptual and philosophical basis for the rise of computers in a seminal paper called On Computable Numbers, while in 1950 he devised a test to measure the intelligence of a machine. Today it is known as the Turing Test.

Celebrate Pi Day!

March 13, 2009 By: George Category: Computing, Trends No Comments →

Pi, Greek letter (π ) , is the symbol of the ratio of the circumference of a circle to its diameter. Pi day is celebrated by math enthusiasts around the world on March 14th.

With the use of computers, Pi has been calculated to over 1 trillion digits past the decimal. Pi is an irrational number meaning it will continue infinitely without repeating. The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737. Learn More …

Cryptographers Compete to Define a New Standard.

November 21, 2008 By: George Category: Computing, Digital World, Security No Comments →

Cryptographers from around the world have laid their best work on the line in a contest to find a new algorithm that will become a critical part of future communications across the Internet. The winning code will become a building block of a wide variety of Internet protocols, including those used to safeguard communications between banks and their customers.

The National Institute of Standards and Technology (NIST) organized the competition and plans to release a short list (NIST has already received 64 entries for the competition and is looking for ways to narrow down the list) of the best entries by the end of this month, beginning a four-year process of analysis to find the overall winner.

NIST has opened the public competition to develop a new cryptographic hash algorithm, which converts a variable length message into a short “message digest” that can be used for digital signatures, message authentication and other applications.  The competition is NIST’s response to recent advances in the cryptanalysis of hash functions.

The Fastest Computer in the World.

November 13, 2008 By: George Category: Computing, Trends No Comments →

The U.S. Department of Energy announced this week that the latest implementation of the  Cray XT Jaguar supercomputer at its Oak Ridge National Laboratory in Oak Ridge, Tenn., has hit a peak performance of 1.64 petaflops, or more than a quadrillion mathematical calculations per second. Last June, IBM’s Roadrunner hit a sustained speed of 1.026 petaflops and a few weeks later it was officially crowned the fastest computer in the world when it made the top spot on the semi-annual Top500 List of supercomputers. Jaguar is dedicated to open research, meaning that scientists from universities, corporations, government agencies and nonprofit organizations can use its compute power for their projects.

Jaguar uses over 45,000 of the latest quad-core Opteron processors from AMD and features 362 terabytes of memory and a 10-petabyte file system. The machine has 578 terabytes per second of memory bandwidth and unprecedented input/output (I/O) bandwidth of 284 gigabytes per second to tackle the biggest bottleneck in leading-edge systems—moving data into and out of processors.  The upgraded Jaguar will undergo rigorous acceptance testing in late December before transitioning to production in early 2009.