Archive for May, 2011

Google takes war to rivals with launch of business computer

May 27th, 2011

Google, in a new bid to diversify its way out of an overwhelming dependence on search ad revenue, has once again taken aim at a giant in another industry.

Having disrupted the disruptor that is Apple in the smartphone arena, Google is now challenging Microsoft’s 800-pound-gorilla status in the enterprise market.

Chromebooks for Business, unveiled at the Google I/O developer’s conference in San Francisco, US, ties together a number of threads the company has been dangling — not the least of which its seemingly Quixotic venture into the computer hardware game.

But with hardware partners Samsung and Acer, Google is doing what Google does best: create a mechanism (inexpensive netbooks) that increases dependency on its cloud ecosystem — just like its advocacy of high-speed Internet connections that support its core business.
But this time there is potential revenue attached to that other agenda, and a genuinely viable business model.

For $28 a month (less for schools) you get everything you need in hardware, software and service — including machine upgrades. Those machines boot up in seconds, connect to WiFi hotspots effortlessly, can tap into Verizon’s 3G data network if necessary (at an extra cost) and are elegantly tied in with (what else?) Gmail, Google Voice, Google Docs.

Prototypes of the Chromebooks didn’t get a high-five from the tech press when they were first were doled out to a select few, and there were big questions then about why Google would want to be in a) a commodity business and b) in the segment seemingly threatened most by tablets. It just didn’t seem to make sense in the way Google’s run at Apple with Android did. Sure, cloud computing seems like the future, but maybe this is an idea whose time has not yet come.

Now that the final piece has fallen into place it seems like Google might be on to something. Part of the reason Chromebooks may work is the power of Pay One Price. With no hidden fees and sufficient customer support (more on that later) this is a real peace-of-mind play at a fraction of the cost of orbiting in the Microsoft universe.

There are lingering questions, though: Why netbooks? Even though there is some conventional wisdom that this relatively new portable class is already being killed off by tablets, the data is unclear. It’s quite likely that the full effect of disruptive introduction of the iPad won’t play out for years, and that tablets and bare-bones netbooks will be road warrior’s dynamic duo at the expense of traditional laptops.

Why not tablets? Because they aren’t proven business tools yet — even Rim markets its Blackberry companion Playbook as a plaything. Even though every person in business seems to have a tablet, full-sized hardware keyboards remain the single most important business tool.

Why rent when you can buy, cheaply? Indeed, this programme isn’t even available to consumers (yet), who need to shell out $350 and do not get support. But this is what makes it a clever enterprise play: you eliminate the original and upgrade cycle capital expenditures — and your IT department. Toss in not having to buy Microsoft Office licenses and the sort of small operations which already use Gmail and Skype will be thinking twice about buying Macs or Linux boxes. When it comes to larger companies, there are CIOs who are already talking up the cloud and who are at least willing to listen.

Google’s prospects are hard to gauge, and the big enterprise equipment and support players — Microsoft and Fujitsu — are probably not quaking in their boots just yet.

Enterprise IT is a conservative, slow-moving beast which emphasizes stability over innovation.
The x-factor may be Google’s ability to provide a high level of pacifying support.

Google’s only other foray into the hardware game was a bust: The Nexus One was supposed to upend the mobile phones business and shatter the dominance of wireless carriers, but Google abandoned the project fairly quickly.

Source:http://www.businessdailyafrica.com/-/539444/1169910/-/1232f7vz/-/

New Prefetching Criteria Make Multi-Core Chips Faster And Bandwidth Efficient

May 27th, 2011

Scientists and computer analysts at the North Carolina State University have successfully implemented two novel bandwidth management schemes that help to enhance the efficiency of multi core processor chips. These two new technologies facilitate faster data retrieval by the individual cores and allow superfast operation of the entire system. The main differences between this new technique and the conventional methods are the bandwidth allocation and pre-fetching data. It is expected that these changes will step up the chip efficiency by at least 40%. The research work will be presented as the International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS) in San Jose, California on 9th June in the form of a paper titled “Studying the Impact of Hardware Prefetching and Bandwidth Partitioning in Chip-Multiprocessors”.

The main idea behind the design of multi core computer chips is that they allow the machines to operate at amazingly great speeds. To make it possible, the design incorporates a specific CPU for each core i.e. each core has its own brain. But sometimes, the core is required to fetch some information that’s not available in its memory. Such data has to be retrieved from somewhere else and it tends to slow down the chip. For data retrieval, each core has a predetermined channel bandwidth which it can use for information transfer. As the number of cores in a chip is increasing, the bandwidth spectrum has become congested and difficult to manage.

The North Carolina research team has identified prefetching as a feasible solution to this problem. Each chip has a cache memory. In prefetching, the cache governs an algorithm which is capable of predicting the data that will be required by the core in future. The algorithm also fetches the data beforehand. If we consider the perfect case, the method is bound to increase the efficiency dramatically. However, if these predictions go wrong, the same process will slow down the chip. So it is like a double edged sword.

The first technique allocates variable bandwidths to different cores because the off chip data to be fetched by all cores is not uniform. Dr. Yan Sohilin, an associate professor of electrical and computer engineering at NC State and co-author this research paper believes that hardware counters could be used to find out which cores require more bandwidth. This leads to an optimal performance by all the chip subsystems without any wastage of the available channels.

The second technique is basically a set of conditions that would determine whether the prefetching is boosting the efficiency or reducing the speed of the processor. These prefetching criteria will be present in every multi core processor chip. The core will automatically turn the prefetching logic on or off depending on its effect on the actual performance of the chip. This scheme will be 40% more efficient than chips that never prefetch and 10% better than chips that always perform prefetching.

Source:http://www.crazyengineers.com/new-prefetching-criteria-make-multi-core-chips-faster-and-bandwidth-efficient-384/

Top 10 fastest-growing computer hardware stocks: tdsc, smt, aapl, ssys, dgii, syna, rsys, catm, emc, logi

May 27th, 2011

Below are the top 10 fastest-growing Computer Hardware stocks, UPDATED TODAY before 4:30 AM ET, based on the average long-term earnings growth rate estimated by Wall Street analysts.

3D Systems Corporation (NASDAQ:TDSC) is the 1st fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 29.6%. This number is based on the average estimate of 3 brokerage analysts. SMART Technologies Inc (NASDAQ:SMT) is the 2nd fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 25.0%. This number is based on the average estimate of 3 brokerage analysts. Apple Inc. (NASDAQ:AAPL) is the 3rd fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 20.5%. This number is based on the average estimate of 15 brokerage analysts. Stratasys, Inc. (NASDAQ:SSYS) is the 4th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 18.0%. This number is based on the average estimate of 5 brokerage analysts. Digi International Inc. (NASDAQ:DGII) is the 5th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 17.5%. This number is based on the average estimate of 3 brokerage analysts.

Synaptics, Incorporated (NASDAQ:SYNA) is the 6th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 17.5%. This number is based on the average estimate of 3 brokerage analysts. RadiSys Corporation (NASDAQ:RSYS) is the 7th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 15.0%. This number is based on the average estimate of 3 brokerage analysts. Cardtronics, Inc. (NASDAQ:CATM) is the 8th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 14.9%. This number is based on the average estimate of 5 brokerage analysts. EMC Corporation (NYSE:EMC) is the 9th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 14.8%. This number is based on the average estimate of 11 brokerage analysts. Logitech International SA (USA) (NASDAQ:LOGI) is the 10th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 13.4%. This number is based on the average estimate of 4 brokerage analysts.

Source:http://www.cnanalyst.com/2011/05/top-10-fastest-growing-computer-hardware-stocks-tdsc-smt-aapl-ssys-dgii-syna-rsys-catm-emc-logi-may-.html

How to make an XP PC default to the correct Wi-Fi connection

May 26th, 2011

HELPROOM ANSWER When your computer enters Hibernate mode it switches off the wireless card; on wake up it seeks out the networks it regards as the most accessible. Windows XP isn’t the most wireless-friendly operating system, and it has problems correctly starting up hardware when waking from Hibernate.

These issues have been fixed in Vista and Windows 7. As XP is no longer supported, you should consider upgrading the operating system (assuming your hardware is up to the task). You can get a copy of Vista Home Premium for just £45 at amazon.co.uk.

In the meantime, change your settings to make your own wireless network the default, with no other networks available for connection. Open the wireless connection settings, right-click those you don’t want to use and select Disable.

Next, open the Control Panel and go to Network Connections. Right-click your wireless card and select the Wireless Networks tab. In the box marked ‘Preferred networks’, ensure your home access point appears at the top by highlighting it and clicking the ‘Move up’ button as necessary. This will force Windows to look only to the preferred connection, ignoring the wireless connections you’ve disabled.

Source:http://www.pcadvisor.co.uk/how-to/network-wifi/3282334/how-to-make-an-xp-pc-default-to-the-correct-wi-fi-connection/

Boosting Performance of Multi-crore Computer Chips

May 26th, 2011

Computers can now run even faster. Researchers have developed two new techniques to help multi-core computer chips boost their performance by 10 to 40 percent.

Multi-core chips are supposed to make our computers run faster. Each core on a chip is its own central processing unit, or computer brain. However, there are things that can slow these cores.

For example, each core needs to retrieve data from memory that is not stored on its chip. There is a limited pathway – or bandwidth – these cores can use to retrieve that off-chip data.

As chips have incorporated more and more cores, the bandwidth has become increasingly congested — slowing down system performance, reports the journal Proceedings of the National Academy of Sciences.

One of the ways to expedite core performance is called prefetching. Each chip has its own small memory component, called a cache.

In prefetching, the cache predicts what data a core will need in the future and retrieves that data from off-chip memory before the core needs it. Ideally, this improves the core’s performance.

But, if the cache’s prediction is inaccurate, it unnecessarily clogs the bandwidth while retrieving the wrong data. This actually slows the chip’s overall performance.

“The first technique relies on criteria we developed to determine how much bandwidth should be allotted to each core on a chip,” says Yan Solihin, associate professor of electrical and computer engineering at North Carolina State University and study co-author.

Researchers use easily-collected data from the hardware counters on each chip to determine which cores need more bandwidth. “By better distributing the bandwidth to the appropriate cores, the criteria are able to maximize system performance,” Solihin says, according to a Carolina statement.

“The second technique relies on a set of criteria we developed for determining when prefetching will boost performance and should be utilized,” Solihin says, “as well as when prefetching would slow things down and should be avoided.”

Utilizing both sets of criteria, the researchers were able to boost multi-core chip performance by 40 percent, compared to multi-core chips that do not prefetch data, and by 10 percent over multi-core chips that always prefetch data.

Source:http://www.daijiworld.com/news/news_disp.asp?n_id=103400&n_tit=Boosting+Performance+of+Multi-crore+Computer+Chips

Gigabyte GA-P67A-UD7-B3 Review

May 26th, 2011

Sure, you can buy a budget motherboard, drop in one high-end graphics card, and get pretty good performance for single-screen gaming, even if you’ve got a super-high-resolution 30-inch monitor. But there’s always going to be a small cadre of well-heeled (some would say “off-their-rocker”) gamers for whom single-card system configurations just won’t cut it, and for whom “good enough” performance just isn’t enough.

Sitting at the high end of Gigabyte’s line of P67-chipset motherboards, the GA-P67A-UD7-B3 aims for those no-compromise PC builders. It’s a well-equipped enthusiast board targeted at users who want to run multiple graphics cards without the performance compromises that normally come with dropping two or three cards into a P67-based motherboard.

By including Nvidia’s bandwidth-boosting NF200 chip, Gigabyte makes this board a better-than-most pick for use with multiple graphics cards. You can configure the P67A-UD7-B3 with two or three graphics cards in SLI or CrossFireX mode, and two of the cards will run at the fastest-possible PCI Express (PCIe) x16 bandwidth, with the third card running at PCIe x8 speed. Not all motherboards can do this, by a long shot; many motherboards that have more than one physical PCIe x16 slot lack the actual plumbing to run more than one card at full speed.

If you want to build a rig with the ability to run today’s most-demanding game titles at the highest possible detail and resolution settings (think a six-LCD array, or a trio of $1,000, 30-inch monitors), the P67A-UD7-B3 is a great foundation. With a full complement of SATA and USB ports, as well, it’s a good building block for an extremely high-end system.
The Chipset

Based on the B3 revision of Intel’s P67 Express chipset, the P67A-UD7-B3 provides all the basic glue to connect a Socket 1155 second-generation Core processor to the rest of a system, and it handles PCI Express (PCIe), SATA, Intel HD Audio, USB 2.0, and Gigabit Ethernet functionality.

As we note in our overview of nine Sandy Bridge motherboards we reviewed, including this one, there are few major differences between Intel’s P67 Express chipset and the newer Z68 Express. The P67 chipset doesn’t support the built-in video features of the Sandy Bridge Core processors; you’ll need to use this board with a dedicated video card, and the video connectors on your card are all you’ll have your disposal. Likewise, this chipset keeps you from making use of the hardware-based video-transcoding acceleration (Intel’s Quick Sync Video) on the CPU.

The P67 chipset also lacks support for SSD caching with Intel’s Smart Response technology. (There’s more on Smart Response in our nine-board overview.) That said, we don’t think this will be a big loss for most buyers of this high-end board. Why? If you’re building a system with the additional graphics cards needed to take full advantage of the P67A-UD7-B3’s capabilities, we suspect you can probably budget for a large-enough SSD that the lack of the caching feature won’t matter. And given the likelihood that this board will be used with multiple video cards, the lack of Z68 video features likely won’t matter to the intended buyers.
Design

Gigabyte has eschewed the garish blue motherboards of years past with the P67A-UD7-B3. This board features a black circuit board and slots, as well as dark-grey heat sinks with classy gold trim. The overall effect looks high-end and a bit edgy. If you’re building a system to show off, the P67A-UD7-B3 will most certainly look good in a case with a window.

The P67A-UD7-B3’s layout is a mixed bag, however. Overall, everything’s logically placed, but if you plan to take advantage of its ability to host three video cards, you may run into issues with the expansion-slot placement. Seeing as most high-performance graphics cards block the slot next to them because of the thickness of their cooling hardware, any standard ATX board will have little, if any, room for more expansion cards once you’ve installed three video cards. Inserting three double-width cards in an SLI or CrossFireX configuration will usually block the remaining PCI Express (PCIe) x8 and PCI slots.

In theory, on this board, that would still leave the PCIe x1 slot open for a sound card, TV tuner, or other device. However, the large heat sink for the NF200 chip sits directly behind the PCIe x1 slot and will block just about all traditional expansion cards. Only very short cards that don’t extend more than about a centimeter behind the slot connector will fit here. On the flipside, if you’re only installing two video cards, you’ll still have a PCIe x8 slot available for high-speed expansion cards, which isn’t the case with most boards. The constrained PCIe x1 slot only comes into play if you install three video cards.

The heat sinks surrounding the LGA 1155 CPU socket are far enough from the socket that you shouldn’t have problems installing even today’s most hulking CPU coolers. And except for the heat sink that blocks the area behind the PCIe x1 slot, the remaining heat sinks and capacitors are low-profile and shouldn’t be obstacles for installing expansion cards, either.

As is becoming the norm, the internal SATA ports are mounted horizontally to the motherboard, which lets you route cables away from the board, though this style of port can be hard to access in a tight case. We recommend connecting all necessary SATA cables to the motherboard before slotting in the bulkier components.

Along with dedicated power and reset buttons on the board, Gigabyte also incorporated a button for clearing the CMOS settings. That’s an addition that anyone who’s ever reached into a crowded system with a pair of needle-nose pliers to move a CMOS-reset jumper will heartily welcome. Also onboard is a two-digit LED that displays power-on self-test codes—very handy for troubleshooting system-boot issues.
Expansion & Ports

In its vanilla form, the P67 chipset levies some bandwidth restrictions if you install multiple graphics cards. When you run two video cards together, they only run at PCIe x8 bandwidth, and even if your motherboard has an actual slot that can take a third card, it will run at a noticeably slower x4 speed, if it works at all. The P67A-UD7-B3 works around this by including Nvidia’s NF200 chip onboard, which allows full three-way SLI and CrossFireX operation. The board has four physical PCIe x16 slots, two of which operate at full x16 bandwidth, and two that support x8 bandwidth. You also get two PCI slots, and the marginally useful PCIe x1 slot we mentioned earlier. The latter is mostly blocked by the NF200’s cooler, as you can see in the image at right.

The board includes an impressive six USB 3.0 ports on the back panel, as well as two motherboard USB 3.0 headers, each of which supports adding two ports, for 10 in all. You’ll also find four USB 2.0 connectors on the back panel (two of which double as eSATA connectors), and two motherboard pin headers for adding four more USB devices. One quibble on the USB front: Gigabyte doesn’t bundle any back-panel USB brackets with the board, to allow you to add more USB ports around the back of your PC using the wealth of headers. These brackets are inexpensive, and you’d think Gigabyte would bundle a couple with such a high-end board. (For a primer on board slots and ports, check out our video primer on motherboard technology and buying.)

There’s a further aspect to the USB ports we did like, however. With its USB connectors here, Gigabyte includes fast USB-charging capabilities for high-draw devices such as the Apple iPad. The boosted charging capabilities offer up to three times the power of stock ports.

As for internal drive connectors, the board includes two SATA 6Gbps ports on a Marvell controller, as well the stock Intel connectors: two SATA 6Gbps ports, and four SATA 3Gbps connectors. Also present are the pair of combo eSATA/USB 2.0 ports on the back panel we just mentioned; these both offer SATA 6Gbps performance when connected to eSATA drives or devices that support the 6Gbps spec.

Audio connectivity also abounds. You get both coax and optical digital-audio outputs, in addition to the typical six analog surround-sound connectors. A single PS/2 mouse/keyboard connector is included for legacy devices, and we were surprised to see abundant support for fading FireWire, with the possibility of up to three ports: two physical ones on the rear panel, and one via a header on the board.

Other Features

In keeping with the advanced nature of this board, Gigabyte also outfitted it with an advanced BIOS. The P67A-UD7-B3 uses what the company calls “Hybrid EFI Technology” for its BIOS settings. Entering the BIOS screen, you see a traditional, text-based Award BIOS with the ultra-detailed timing settings that enthusiasts expect from Gigabyte’s boards. Though it’s not full UEFI firmware, it acts like it, in some crucial respects.

For one, the BIOS supports 3TB hard drives without additional tweaking, and Gigabyte offers a utility on its Web site that enables usage of these monster drives even on 32-bit operating systems like Windows XP. The board doesn’t include the Windows Touch BIOS utility found on Gigabyte’s newer Z68-based models, but it does include Windows utilities for easy automatic overclocking and for teaming the two Ethernet connectors for faster network transfers.

The P67A-UD7-B3 also uses a dual BIOS setup, which comes in extremely handy for frequent tweakers. If you run into trouble flashing a BIOS update or paint yourself into a stability corner when overclocking, you should be able to easily revert to the previous version using this feature.
Conclusion

If you’re looking to maximize your video performance with multiple graphics cards, or you want to use multiple high-bandwidth PCI Express cards, the P67A-UD7-B3 is well-equipped for the task. And with its extensive selection of ports, support for a whopping six SATA 6Gbps devices, and easy overclocking, it’s an excellent high-end board overall.

If you don’t plan to use multiple video cards, however, Gigabyte offers similar P67- and Z68-based models, such as the Z68X-UD5-B3, that don’t include the NF200 chip and cost a bit less. We recommend looking at one of those if you won’t take advantage of all that this premium board has to offer.

Source:http://computershopper.com/components/reviews/gigabyte-ga-p67a-ud7-b3

Logitech International Stock Hits New 52-Week Low (LOGI)

May 26th, 2011

Logitech International (Nasdaq:LOGI) hit a new 52-week low Wednesday as it is currently trading at $11.94, below its previous 52-week high of $23.29 with 123,150 shares traded as of 9:36 a.m. ET. Average volume has been 1.8 million shares over the past 30 days.

Logitech International has a market cap of $2.2 billion and is part of the technology sector and computer hardware industry. Shares are down 34% year to date as of the close of trading on Tuesday.

Logitech International S.A. engages in the development and marketing of products in PC navigation, Internet communications, digital music, home-entertainment control, gaming, and wireless devices. The company operates in two segments, Personal Peripherals and Video Conferencing. The company has a P/E ratio of 14.9, below the average computer hardware industry P/E ratio of 17.4 and below the S&P 500 P/E ratio of 17.7.

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TheStreet Ratings rates Logitech International as a hold. The company’s strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, unimpressive growth in net income and weak operating cash flow.

Source:http://www.thestreet.com/story/11132995/1/logitech-international-stock-hits-new-52-week-low-logi.html

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