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3G Technology July 2, 2008

Posted by Vijay in Technology.
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I get to know about this technology due to the release of Apple iPhone3G in July. 3G represents the third generation of wireless communication. We watch online TV in a mobile phone supported EDGE and they correspond to the 2G technology. Actually 3G is the advanced version of 2G which makes the movies to buffer 2.4 times faster than EDGE. 3G technology uses a protocol called HSDPA (High-Speed Downlink Packet Access) to download data fast over UMTS (Universal Mobile Telecommunications System) networks. 3G has a feature of multitasking, simultaneously you can talk on the phone while surfing the web. HSDPA protocol support down-link speeds of 1.8, 3.6, 7.2 and 14.4 Mbit/s and a maximum of 42Mbit/s with HSPA+ protocol. 4G technology are used to watch Internet TV in most of the countries including US. The other features of iPhone are GPS(Global Positioning System) which tracks and monitors the location where the mobile is used and provides the direction to the destination point.

Features of iPhone:

iPhone has a very sleek design of just 12mm in thickness and it weighs 130g. It is also Quad Band and it supports GSM/GPRS/EDGE with GSM of 850/900/1800/1900. iPhone has 3.5inch widescreen LCD with a resolution of 480 x 320 pixels at 163ppi and it supports touch screen interface with a home button. iphone has its own iPhone OS v2.0 with storage capacity of 8 or 16 GB Flash Memory. The other specification includes Wi-Fi (802.11 b/g), EDGE and with Bluetooth 2.0EDR Technology, Assisted GPS (A-GPS), with detection of cell towers and Wi-Fi networks. It has a 2 megapixel camera with geotagging facility. It has a Lithium-ion Polymer battery with up to 10 hours of 2G talk, 5 hours of 3G talk, 5 (3G) or 6 (Wi-Fi) hours of Internet use, 7 hours of video playback, and up to 24 hours of audio playback, lasting over 300 hours on standby. The 8GB iPhone will be available at a very low price of US$199 while the 16GB will be at US $299. It is going to be released in two colours black or white in most of the countries (the list doesnt include India)

P.S:

For more info at:

http://en.wikipedia.org/wiki/3G

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Vista is less vulnerable to virus attacks… May 9, 2008

Posted by Vijay in Softwares, Technology.
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I am presently using a dual OS desktop with multiple partitions and using Windows XP Professional SP3 and Windows Vista Ultimate SP1. After much thoughts i found to see that Vista is less prone to virus attacks. Windows XP is very efficient for systems of configurations with 512 RAM or 1GB RAM. But if you are having 2GB RAM one should prefer Vista. Though after installation of Service Pack 1 for Vista, i couldnt be able to play some of the games that would be playable in XP but still i prefer Vista because of DirectX10 gaming which will the future gaming. When i was in hostel, i even got some of the DirectX10 game demos and it didnt work in my Vista as I need a DirectX10 compatible PCI graphics card. Vista has greater High Definition support than XP. It has an advanced Media center and Movie maker when compared with XP Media center Edition. Although I have antivirus in XP, i still get affected by the virus somehow or the other. But i wont get this problem in Vista. Vista Ultimate has many applications and most of them i havnt used. Vista has better security than XP. The main problem with Vista is that you need to install only Vista compatible softwares which were only a few at the beginning but now we a ample number of resources.

P.S:

Its highly recommended not to install Vista in 1GB or 512MB or lower which would degrade your performance then you might be able to run only Vista and not your applications efficiently.

Advantages of NTFS partition February 18, 2008

Posted by Vijay in Education, Technology.
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The NTFS file system, introduced with first version of Windows NT, is a completely different file system from FAT. It provides increased security, file–by–file compression, quotas, and even encryption. It is the default file system for new installations of Windows XP, and if you’re doing an upgrade from a previous version of Windows, you’ll be asked if you want to convert your existing file systems to NTFS. Its a default requirement for Windows Vista. You can convert FAT16 or FAT32 volumes to NTFS at any point. Just remember that you can’t easily go back to FAT or FAT32 (without reformatting the drive or partition), and i bet you wont think of it. For this reason, many system administrators, myself included, used to recommend that users format at least a small partition at the beginning of their main hard disk as FAT. But with the enhanced recovery abilities built into Windows XP (more on that in a future column), I don’t think it’s necessary or desirable to create that initial FAT partition.

When to Use FAT or FAT32?

If you’re running more than one operating system on a single computer (Dual OS), you will definitely need to format some of your volumes as FAT. Any programs or data that need to be accessed by more than one operating system on that computer should be stored on a FAT16 or possibly FAT32 volume. But keep in mind that you have no security for data on a FAT16 or FAT32 volume and any one with access to the computer can read, change, or even delete any file that is stored on a FAT16 or FAT32 partition. So do not store personal files on partitions formatted with FAT file systems.

P.S:

Its recommended to use NTFS rather than FAT when you have an individual system.

Why AMD beats Intel? February 5, 2008

Posted by Vijay in Technology.
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In January 2008, I bought a 2.1Ghz AMD Athlon X2 4000+(2.4K bux) with ASUS motherboard(2.5K bux) and also Transcend 2GB DDR2 RAM(1.7K bux). Actually I went to buy only a 1GB DDR RAM for 1.5K bux and the store wala told me that only DDR2 RAM are in current trend and the prices of DDR RAM might be double the prices of DDR2 RAM. So it opted me to buy a new motherboard compatible for DDR2 RAM and a processor of low budget in the AMD Athlon X2 Series. AMD is always has a price tag of 300 to 500 bux less than the Intel products. And now its working very well. Later, i saw that my configuration is the mid-range in the gaming arena and felt pretty happy about it.

According to a benchmark test with 2.4Ghz AMD Athlon 4800+ chip and 3.2Ghz Intel Pentium dual core Express Edition, AMD Athlon dual core is rated as the best in all aspects with Intel and it provides a simultaneous 32bit and 64bit tasking. Intel was a bit late to the 64bit technology, only a year later after AMD introduced Athlon 64bit technology. While in Intel only a few processors are of 64bit technology and it was a drawback in the cold war between them. I could experience a better gaming performance with my AMD Athlon X2 4000+ and ATI Radeon X550 256MB DDR technology. There were many faults in AMD a few years ago that the processors get heated up very quickly. But these are rectified and they have introduced the Cool and Quiet Technology in the recent times. Though Intel has the best processors, they are slightly costly and everyone cannot afford it.

I recommand AMD as the best value for your money…

Reference:

CNET Prizefight between the Dual Core Desktops : AMD vs Intel

http://reviews.cnet.com/4520-10442_7-6389077-1.html

Note:

The prices of the products may flectuate from city to city.