DWG Viewer

Without AutoCAD software we can view AutoCAD drawing formats with the help of DWG Viewer.

DWG Viewer supports all AutoCAD drawing formats. This software even supports AutoCAD 2007 drawing format also. We can view,measure,print AutoCAD drawing format files like DWG, DXF, DWF files with the help of DWG Viewer.

We can convert DWG to PDF,DWG to Image files(jpg,tiff,gif) with the help of DWG Viewer Pro version. We can publish markup in PDF or Image format with the help of DWG Viewer Pro version.

Download DWG Viewer

If your Floppy Drive light is glowing for every 2 to 3 seconds without a Floppy in it, then do like this

Today so many viruses, worms, trojans and potentially unwanted programs are attacking our PC. Almost all Antivirus software developing companies are offering their free Evaluation Versions or free Trial Versions. We can try those softwares for one month freely. All of them are working very good. We can use different combinations of antivirus softwares for removing viruses, worms, trojans and potentially unwanted programs. If you are using one antivirus software for protection and want to try another antivirus software then first you have to uninstall the first antivirus software from your PC. Then you can try the second one. In some cases you can try the second one by just inactivate the first antivirus software.

Recently My PC was infected by some Viruses. Without any floppy in my floppy drive, my floppy drive light is glowing for every 2 to 3 seconds. Also system performance becomes slow. The virus is trying to access the floppy drive for every 2 or 3 seconds. So the system becomes very slow. For removing this and other viruses I have used two antivirus softwares. First I used Avira AntiVir PersonalEdition Classic(Free for home PC). But when Avira scanning the virus affected file then my system is freezing. So First I scanned my PC with BitDefender Antivirus Plus v10(Evaluation Version). It worked O.K and deleted some viruses. But still my floppy drive light is glowing for every 2 to 3 seconds and system performance is slow as before. Now I scanned my PC using Avira AntiVir PersonalEdition Classic. This time Avira works very well. It won't freeze my system. I deleted all Virus affected files with Avira AntiVir PersonalEdition Classic. Now My floppy drive light is not glowing unnesasserily. Also my system performance is very fast now. Also all my programs are working perfectly except the problem below.

As I deleted all virus affected files, now my drives C,D,E,F are not opening. When I double click any one of the drives then it is giving error message “Cannot find copy.exe” and the drives are not opening at all. But I can open any drive by right clicking it and then select open. Only I can not open drives by doubleclicking. Anyone can rectify this problem by doing like below.

Open My Computer. Select Folder Options from Tools menu, then click the View tab. Now tick Show hidden files and folders. In the same View tab window remove the tick mark at Hide protected Operating system files then a warning message will come. Just click Yes. Now click Apply then click OK. Now right click C drive then open it. You will observe Desktop.ini file. Just delete it. Similarly delete Desktop.ini file in D,E,F drives. Now restart the system. Now you can open any drive by doubleclicking it.

Also remember one more thing. With the help of this Antivirus softwares we are deleting virus affected files. So after deleting Virus affected files some programs may not work. For example Yahoo messenger may not work, Ms Word may not work etc. You have to reinstall them again. All this depends on attacked Viruses. Some times Add or Remove Programs(this is in control panel) may not work. Also Recent viruses are attacking game files,mostly game exe files. So after using the latest antivirus softwares you have to delete virus affected game exe files. For the game to work you have to reinstall the game or to copy the same game exe file from one of your friends system. Also do not use cracked game files. Cracked files may contain Viruses. Some times you have to reinstall the entire Operating System by formatting the harddisk. All this depends on Attacked Viruses and the extent of damage caused by them.

Try the following Antivirus Softwares for protecting your PC

Avira AntiVir PersonalEdition Classic
This is free for home PC. This reliably protects your computer against dangerous viruses, worms, Trojans and costly dialers. Avira has gained several awards.

It is available for winnt/2000/xp and win98/me and Linux/FreeBSD/Solaris separately.

Download Avira

BitDefender Antivirus Plus v10
You can use Evaluation Version freely for one month. BitDefender 8 Free Edition is also available. You can use the same version for both Windows XP and Windows 98 SE.

Download Bitdefender

Panda Antivirus + Firewall 2007
This software includes Panda Antivirus, Panda AntiSpyware, Panda Firewall, Panda TruPrevent. This keep you safe from all types of viruses, worms, Trojans, spyware and online fraud. You can use Evaluation Version freely for one month. Panda Antivirus+Firewall 2007 fights new scams designed to steal your login details, account numbers and other personal information(phishing).

This supports Windows XP, Windows 2000 Pro, Windows Me, Windows 98
Internet Explorer 5.01

Download Panda

Mcafee Virusscan Plus
This software includes AntiVirus, Firewall, AntiSpyware, McAfee Security Center and PC Health. This guards guards your PC, email, IM, downloads, photos, music files, videos, financial records, Web banking, shopping, mass-mailing worms and backdoor Trojans.

AntiSpyware detect and delete spyware, adware and other potentially unwanted programs before they can steal log-ins and passwords (key-loggers), hijack your dial-up connection (Web dialers), track online surfing (cookies) or flood your surfing with annoying pop-up ads.

This supports Microsoft Windows 2000 Service Pack 4, Windows XP, Windows VISTA, Windows 2000.

Download Mcafee

AVG AntiVirus Professional Edition 7.5
You can use Trial Version freely for one month. This protects against viruses, worms, trojans and potentially unwanted programs. AVG's scanning engine has received numerous awards for its excellent detection of viruses, including the VB100% award.

It supports multiple languages. This supports Windows 98, Windows Me, Windows NT,Windows 2000, Windows XP, Windows XP Pro x64 Edition, Windows Vista, Windows Vista x64 Edition.

Download AVG

Quick Heal AntiVirus Plus 2007 Desktop
You can use Trial Version freely for one month. Quick Heal wins VB100% award 17 times.

It supports Windows 95, Windows 98SE, Windows ME, Windows NT 4.0 Workstation, Windows 2000 Professional, Windows XP Home, Windows XP Professional and Windows XP 64-bit.

Download Quick Heal

Avast 4 Home edition
This full featured antivirus package is designed exclusively for home users and non-commercial use. It is free. Institutions (even non-commercial ones) are not allowed to use avast Home Edition. They have to purchase Avast antivirus products. This also wins VB100% award.

It supports Windows 95, Windows 98SE, Windows ME, Windows NT 4.0 Workstation, Windows 2000(no server), Windows XP(no server), Windows Vista.

Download Avast

What is Phishing?

We can define Phishing as Web Forgery or a Spyware which steals your personal Identity data like your user accounts,passwords etc and financial account credentials like your credit card,bank accounts information etc. Phishing is generally carried out using e-mails,instant messages,phone calls.

Recently I got a email message from E-Bay with subject Power Seller like this:

Dear E-Bay Member,

Congratulations. Your recent selling activity entitles you to Silver Status in the E-bay Power Seller program. Your Membership comes with some great benefits and services.

Download free business templates for Power Seller business cards and letter letterhead.

Sign up today. It's free. Visit www.ebay.com/powerseller(link) and click your Member Sign In.

Again congratulations and best wishes for your continued success

Sincerely
E-Bay Power Seller Team

The above is an example of Phishing email. E-Bay give Power Seller status to only the best trusted sellers only. It won't give Silver Status to every member. Also this mail has not addressed me personally. It has addressed all E-Bay Members. Also I kept the cursor on the link given by them and check it on the status bar. Both Website addresses are not same. One more important thing is I never sell anything in E-bay site.

So this is forged site of E-Bay. If you click their link then it will take you to the forged site of E-Bay. The forged site is same as the original E-Bay site. If you sign into your E-Bay account from their site then they will steal your username and password.

So becareful about this type of Emails linking to forged sites. Also remember that no site will ask about your account details or account verification.

Some more E-Bay Phishing messages have the following subject lines:

UpdateYour Account
eBay Verify Accounts
eBay: Account Violate User Agreement
Account Verification
Update or verify your account informations
Account Suspension Notice - Section 9
New and improved account protection
Security Check
Billing Issues
Update Your Billing Informations
Your account at ebay has been suspended
eBay Security Center Urgent eBay Account Update
Ebay(R) Re-Activation Unit
eBay account verification needed
Your eBay Account Must Be Confirmed
Fraud investigation

Some MSN Phishing messages have the following subject lines:

Microsoft Network customer data verification
Warning Message
Your membership will be cancelled
Account Verification
current network critical patch
MSN HOTMAIL Account Verification

Some Yahoo Phishing messages have the following subject lines:

Important Information Regarding Your Account
E-mail account security warning

Recently Phishers are targetting Banks. If you click those links then they will take you to forged banking sites. The forged sites are same as like original bank sites. If you enter your username,password details then they steal your username and password. They will draw all of your money from your bank account. The banking Phishing messages also have subject lines like E-Bay subject lines. So becareful when you entering your online bank details.

Now all of the Banks are displaying Alert messages in their sites like below.

Uti Bank alert message

In case you have received any e-mail from an address appearing to be sent by UTIBANK, advising you of any changes made in your personal information,account details or information on your user id and password of your netbanking facility, PLEASE DO NOT RESPOND. It is UTIBANK's policy not to seek/send such information through email. If you have already disclosed your password please change it immediately.

Phone Phishing

In Phone Phising users will get a phone call from a bank(Fake). They told users to dial a phone number regarding a problem with their bank account. Once the users dialed the number,then Phishers told users to enter their account numbers and PIN. If you enter those details your money will be stealed by the Phishers.

In every month Phishers are sending 6 billion Phishing emails worldwide. Becareful regarding email messages from E-Bay,Banks,Paypal,Credit Card companies.

Take the following precautionary steps while you browsing.

1. Latest Browsers like Internet Explorer 7.0, Firefox 2.0, Opera 9.10 have Phishing Filters. Use any of the above browsers. They will alert you when you click a link of a forged site. All of the above browsers Phishing Filters are working very well.

2. Don't respond to emails asking about your account details,account verification,credit card details, credit card verification etc.

3. Don't download any attachments or files(html files also) from the suspected Phishing Messages. These files can contain Viruses or Trojan keylogger spyware. They steal your personal data and financial account credentials like your credit card,bank accounts information etc.

4. Take a free Phishing test at the following site. The site will display 10 messages from world famous companies regarding Phishing one by one. You have to observe those messages and tick your opinion whether it is a Phishing message or legitimate message. After completing 10 questions they will explain why a particular message is Phishing or why a particular message is legitimate. You will better understood Phishing after completing the Phishing test.

Free Phishing test

Also you will get plenty of information on phishing by visiting PhishTank site.

45 Nanometer Transistor Technology

Recently Intel announced that it will use 45nm Transisitors in Intel's next generation processors, codenamed Penryn. Those processors will be available in the second half of 2007. At preset it is using 65nm Transistors in Intel Processors.

First let us know what is a nanometer?

There are one billion nanometers in one meter. The first Transistor was built by Bell Labs in 1947. We can hold it with our hand. We can not see the 45nm Transistor with our eye. We need a very advanced microscope to see it. More than 30 million 45nm Transistors could fit on the head of a pin. More than 2000 45nm Transistors could fit across the width of a human hair. More than 2 million 45nm Transistors could fit on the period(.). A 45nm Transistor can switch on and off at 300 billion times per second.

When compared to today's 65nm technology, we get 20 % improvement in Transistor switching speed and the power consumption is reduced by 30 percent in transistor switching. Due to smaller size of transistors we will get benefit of twice the transistor density. The transistor gate oxide leakage is reduced by 10 times.

Now let us know the new technology in 45nm Transistors

A Transistor is a switch that process the ones and zeroes. A gate is used to turn the transistor on and off. A dielectric is used under the gate to separate the gate from the channel where the current flows. The dielectric is nothing but a insulator. Today's 65nm Technology has been using silicon dioxide as gate dielectric, polysilicon in gate electrode. The transistor size reduces as the thickness of the dielectric reduces. The transistor speed increases by reducing gate electrode length and by reducing the thickness of the dielectric. But as the gate dielectric gets thinner, electric leakage increases. Today's gate dielectric thickness is 1.2nm(equal to 5 atomic layers). Now at this stage it becomes impossible to reduce thickness of dielectric further. If we reduce the thickness further then electric leakage increases further and the transistors become over heated and in sometimes they may burn.

So inorder to reduce electric leakage we have to use some other material as dielectric instead of silicon dioxide. So Intel is using a hafnium-based high-k material in the gate dielectric in their new 45nm Transistors. But this high-k dielectric is not compatible with polysilicon gate electrode. Intel replaced this polysilicon by special metals. These special metal gates are well compatible with hafnium gate dielectric. This combination improves performance of transistors to high level with very low current leakage.

Intel continues to maintain Moore's Law with this new 45nm technology. According to Moore's Law (Intel co-founder), the number of transistors on a chip doubles about every two years.

The number of transistors on first Microprocessor(4004) to latest Processors increases like below.

2000 transistors in first Processor, 4004
29000 transistors in 8080
134000 transistors in 80286
275000 transistors in 386
3000000 transistors in Pentium
9500000 transistors in Pentium 3
55000000 transistors in Pentium 4
77000000 transistors in Centrino
230000000 transistors in Pentium D
1720000000 transistors in Itanium 2
290000000 transistors in Intel Core 2 duo
580000000 transistors in Intel Core 2 quad

Yahoo Messenger Plug-ins

An Yahoo Messenger plug-in is an html page embedded inside Yahoo Messenger. The html file contains a combination of html tags and Java script API code. The yahoo plugins run inside Yahoo Messenger. Plug-ins are launched from the main messenger window. But some plugins are launched from the conversation window like IndiChat plugin.

What is the use of these Plug-ins?

Each Plug-in has it's own functionality. With the help of plug-ins we can share large files with our contact list, we can view latest movie trailers right from within messenger, we can view the local time of our contacts, we can get live score of cricket matches worldwide, we can chat with our contacts in our regional languages. For example Indian people can chat with their contacts in their own regional languages with the help of IndiChat plug-in. We can do so many things with the available Yahoo Messenger Plug-ins. At present 169 Yahoo Messenger Plug-ins are available. You can also publish your own plug-in to the Yahoo Messenger Plug-in Gallery.

I will explain about a few Plug-ins.

IndiChat
With this plug-in we can converse with our contacts in Indian languages Hindi, Marathi, Tamil, Telugu, Malayalam, Kannada, Bengali, Punjabi and Gujarati. Go to http://gallery.yahoo.com/messenger. Click Get Conversation Plug-ins link. Now click Indichat. then click IndiChat Install Now button. Then first it will load yahoo messenger. So login in to your messenger account with your ID. After you login into your account IndiChat warning window will come. Click yes. Then after some time it will give a message Indichat has been installed. In order to use this plug in, login in to your messenger account then open one of yours contact chat window. In that window you will find Plug-ins tab. Just click that tab. Then click My Plug-ins. You will find IndiChat there. Just click start button. Then you will get IndiChat window like below. You can choose the language you like. Now just type your language words in engish. The plug-in will automatically convert those words to your language. Very simple to use. Remember your contact must also install this IndiChat plug-in.

For getting the above telugu word just type “baagunnaaraa”

For getting the above hindi words just type “aap kaisaa hai”

IM Cricket Cast
With this plug-in we will get Live scores of worldwide cricket matches. Go to http://gallery.yahoo.com/messenger. Then click sports section. There you will find this Plug-in. Just click on it. Now click Install Now button. Then first it will load yahoo messenger. So login in to your messenger account with your ID. After you login into your account IM Cricket Cast warning window will come. Click yes. Then after some time it will give a message IM Cricket Cast has been installed. In order to use this plug in, login in to your messenger account. In the main messenger window you will find Add Plug-ins tab. Just click that tab. Now click My Plug-ins tab. There you will find Cricket Cast. Just click Start button. Then come to Messenger main window. Now you will find Cricket scores under Add Plug-ins tab.

Local Time
This plug-in displays the local time of your contacts. You will find this plug-in in Tools and Utilities section. You can install and use this plug-in same as IM Cricket Cast.

Yahoo! Movie Trailer
You can watch the latest movie trailers right from within Messenger. You will find this plug-in in Music and Entertainment section. You can install and use this plug-in same as IM Cricket Cast.
EBay
You can browse the ebay market place right from within Messenger. You will find this plug-in in Shopping section. You can install and use this plug-in same as IM Cricket Cast.

Pando
We can share large files or folders with our contacts by this plug-in. You will find this plug-in in Tools and Utilities section. You can install and use this plug-in same as IM Cricket Cast.

I have explained only a few Plug-ins. At present 169 Plug-ins are available. Visit Yahoo gallery page and install the yahoo plugins you like.

http://gallery.yahoo.com/messenger