- Get a reliable Internet Connection with good speed
- Install an Internet Security Suite which consists of Antivirus, Anti-Spyware, Anti-Spam, Firewall, Pop-up-Blocker and Privacy Control. Be sure to try the software before you buy, because some software may slowdown your PC.
- Remove the Temporary Files, Folders, Internet Cache, Cookies once you finish surfing. For this you can enable the automatic cleanup option available in the browser settings.
- Install the Windows updates, whenever prompted by your computer, because updates provide some advanced features, and security patches to protect the computer from vulnerabilities. If you haven�t enabled the automatic windows updates, enable it now! Kindle Wireless Reading Device, Wi-Fi, Graphite, 6" Display with New E Ink Pearl Technology
- Remove unnecessary/unused softwares that have been installed in your computer, because too much of unused software can also affect the system performance.
- Always scan the external devices (USB Drive, CD�s, DVD�s, external hard disc) with your antivirus software before you access the folders/files.
- When you download free wares, be sure that you download it from genuine sites like download.com as this download site tests spyware or virus free, after which they accept the download link from developers.
- Take regular secure back-up of your data
- Have a RAM, which suits your computer hard disc and also learn how to restore you computer.
- Disable unnecessary services that are running in your computer.
- Know to differentiate unsolicited spam/hoax emails and genuine emails
- Be sure to check for SSL (Secure Sockets Layer) encrypted certificate when you visit banking related websites. i.e. check if the site starts with https:// before you provide personal confidential financial information . This will prevent loss of information and unnecessary adware�s getting installed in your computer. Kindle Wireless Reading Device, Wi-Fi, Graphite, 6" Display with New E Ink Pearl Technology
, Alice At Heart
Thursday, March 24, 2011
12 Tips to Make your PC Healthy
Google Open Sources MapReduce compression
Google has pen sourced the compression library used across its backen infrastructure including MapReduce, its distributed number-crunching platform, and Big Table, its distributed database.
Aviable at Google Code under an Apache 2.0 license, the library is called Snappy, but Google says this is same library that was previously referred to as Zippy in some public presentations. as the names imply, the library's primary aim is speed. "It does not aim for maximum compression, or compatibility with any other compression library,"Google says. "Instead, it aims for very high speeds and reasonable compression."
Compared to the fastest mode of the popular zlib compression library, Google says, the C++-based Snappy is an order of magnitude faster in most cases (roughly ten times faster), but the compressed files are between 20 and 100 per cent larger. Running in 64-bit mode on a single core of a 2.26Ghz "Westmere" Intel Core i7 processor, according to the company, Snappy compresses at roughly 250MB/sec and decompresses at 500MB/sec.
Google says that the typical compression ratios are about 1.5x to 1.7x for plain text and about 2x to 4x for HTML. zlib in its fastest mode gives you 2.6x to 2.8x for plain text and 3x to 7x for HTML. " So if you want to save space, or want to compress once and decompress lots of times, use zlib (or bzip2, or�). But if you just want to cut down on your I/O, be it network or disk I/O, Snappy might be for you," says Google engineer Steinar Gunderson.
According to Gunderson, Snappy removes the "entropy reduction" step that characterizes zlib and other LZ-style compression libraries. "Most LZ-style compressors (including zlib) consist of two parts: A matching algorithm (recognizing repetitions from data earlier in the stream, as well as things like 'abcabcabcabc') and then an entropy reduction step (almost invariably Huffman or some version of arithmetic encoding)," he says. "Snappy skips the entropy reduction and instead uses a fixed, hand-tuned packing format."
This format, Gunderson says, affords "much less" CPU usage, and he says that Google has spent years fine tuning it. Virtually all of Google's online service run atop a uniform distributed infrastructure based on the proprietary Google File System (GFS), MapReduce, BigTable, and other platforms. This have been mimicked in the open source world by the Apache Hadoop project.
Source : http://www.theregister.co.uk
Aviable at Google Code under an Apache 2.0 license, the library is called Snappy, but Google says this is same library that was previously referred to as Zippy in some public presentations. as the names imply, the library's primary aim is speed. "It does not aim for maximum compression, or compatibility with any other compression library,"Google says. "Instead, it aims for very high speeds and reasonable compression."
Compared to the fastest mode of the popular zlib compression library, Google says, the C++-based Snappy is an order of magnitude faster in most cases (roughly ten times faster), but the compressed files are between 20 and 100 per cent larger. Running in 64-bit mode on a single core of a 2.26Ghz "Westmere" Intel Core i7 processor, according to the company, Snappy compresses at roughly 250MB/sec and decompresses at 500MB/sec.
Google says that the typical compression ratios are about 1.5x to 1.7x for plain text and about 2x to 4x for HTML. zlib in its fastest mode gives you 2.6x to 2.8x for plain text and 3x to 7x for HTML. " So if you want to save space, or want to compress once and decompress lots of times, use zlib (or bzip2, or�). But if you just want to cut down on your I/O, be it network or disk I/O, Snappy might be for you," says Google engineer Steinar Gunderson.
According to Gunderson, Snappy removes the "entropy reduction" step that characterizes zlib and other LZ-style compression libraries. "Most LZ-style compressors (including zlib) consist of two parts: A matching algorithm (recognizing repetitions from data earlier in the stream, as well as things like 'abcabcabcabc') and then an entropy reduction step (almost invariably Huffman or some version of arithmetic encoding)," he says. "Snappy skips the entropy reduction and instead uses a fixed, hand-tuned packing format."
This format, Gunderson says, affords "much less" CPU usage, and he says that Google has spent years fine tuning it. Virtually all of Google's online service run atop a uniform distributed infrastructure based on the proprietary Google File System (GFS), MapReduce, BigTable, and other platforms. This have been mimicked in the open source world by the Apache Hadoop project.
Source : http://www.theregister.co.uk
Microsoft's Novell patent pals return to SuSE's homeland
The Microsoft-led consortium of tech companies trying to hoover up nearly 1,000 of Novell's patents is back in business.
CPTN Holdings re-registered with German authorities on Wednesday, according to the website of the German Federal Cartel Office. Plans to create CPTN as a German entity were withdrawn in December 2010.
CPTN is buying 882 of Novell's patents in a deal with soon-to-be Novell-owner Attachmate. Apple, EMC, and Oracle are also members of CPTN, but it's helmed by Redmond.
The re-registration of CPTN in the homeland of Novell's SuSE Linux was picked up by patents watcher Florian Mueller, who also noticed Novell's stock price is up 2.8 per cent in the US. "Looks like a strong clearance rumor or some other very signficant news," he Tweeted Thursday.
It certainly can't be Novell's financial position that's driving up the stock price. The Attachmate deal is helping to stall sales, with Novell recently reporting a $17.9m loss for its fiscal first quarter, compared to a profit of $20.2m a year ago.
Could Novell's sale to Attachmate and related sale patents to CPTN be closing? When CPTN withdrew from Germany last year, Microsoft called the move a "purely procedural step necessary to provide time to allow for review of the proposed transaction."
The group actually stopped operations the day before OSI president Michael Tiemann lodged an official complaint with the Federal Cartel Office, asking regulators to investigate the sale of the patents.
CPTN registered in US on November 11, 2010, and it has apparently continued operation throughout.
Officially at least, both Attachmate's acquisition and the CPTN deal are on hold in the US until April 12 while the Department of Justice reviews them.
Source : http://www.channelregister.co.uk
CPTN Holdings re-registered with German authorities on Wednesday, according to the website of the German Federal Cartel Office. Plans to create CPTN as a German entity were withdrawn in December 2010.
The re-registration of CPTN in the homeland of Novell's SuSE Linux was picked up by patents watcher Florian Mueller, who also noticed Novell's stock price is up 2.8 per cent in the US. "Looks like a strong clearance rumor or some other very signficant news," he Tweeted Thursday.
It certainly can't be Novell's financial position that's driving up the stock price. The Attachmate deal is helping to stall sales, with Novell recently reporting a $17.9m loss for its fiscal first quarter, compared to a profit of $20.2m a year ago.
Could Novell's sale to Attachmate and related sale patents to CPTN be closing? When CPTN withdrew from Germany last year, Microsoft called the move a "purely procedural step necessary to provide time to allow for review of the proposed transaction."
The group actually stopped operations the day before OSI president Michael Tiemann lodged an official complaint with the Federal Cartel Office, asking regulators to investigate the sale of the patents.
CPTN registered in US on November 11, 2010, and it has apparently continued operation throughout.
Officially at least, both Attachmate's acquisition and the CPTN deal are on hold in the US until April 12 while the Department of Justice reviews them.
Source : http://www.channelregister.co.uk
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