Category Archives: Computers

What Is New About Windows 7 ?

Windows 7 was introduced with 6 editions, each unique in its own way and yet supporting some common functionality. Each edition supports 32 bit processor. For those users who have been using the earlier introduced Operating systems, Microsoft came up with ‘Windows anytime upgrade’ which enables you to upgrade your machines to Windows 7 edition of your choice. However before upgrading, you would need to know which edition you would like to go in for. So let us have a look at what is new and different in basic features offered in each of these editions and how it makes one different from the other.

The 6 editions offered by Microsoft Windows 7 are:

1. Windows 7 Starter
2. Windows 7 Home Basic
3. Windows 7 Home Premium
4. Windows 7 Professional
5. Windows 7 Enterprise
6. Windows 7 Ultimate

Windows 7 Starter

This edition of Windows 7 has the least features amongst all other editions. It is basically meant for surfing the net. This was made for less 32 bit computers and one major feature that is missing in this is the Aero theme. This edition is not available in the retail stores and comes installed with new notebook purchase.

Windows 7 Home Basic

For users who prefer using Windows 7 Home Basic, they need to activate Windows as it includes geographical activation. It has better features than the Windows 7 Starter edition but is sold only to developing countries.

Windows 7 Home Premium

This edition is for home usage and comes with a great user interface. This edition has Windows Media Center to enable users to play, create and burn Media files with ease. It has advanced Windows navigation too like multi touch support.

Windows 7 Professional

Besides encompassing features of Windows 7 Home Premium, there are good amount of networking features added to this edition of Windows, the most prominent of them being Location Aware Printing. This works if you have to use your laptop in different places and thus default printers for each location can be selected. Another important feature which cannot be neglected here is the Remote Desktop where other PC’s can get an access to yours through internet. Another highlight that is available in Windows 7 Ultimate besides Windows 7 Professional is that a licensed version of Windows XP can run inside Windows 7 through Virtual PC.

Windows 7 Enterprise

It is sold only to companies which have Microsoft Software Assurance.

Windows 7 Ultimate

It encompasses all features of Windows 7 Enterprise, but to be used by home users. Windows 7 Home Premium and Windows 7 Professional users are allowed an upgrade to Windows 7 Ultimate using Windows Anytime Upgrade feature. The biggest advantage of Windows 7 Ultimate is that multiple languages are allowed on one computer.

Other than these 6 editions that were declared officially with the release of Windows 7, another upcoming edition is the Windows thin PC which will be up in the market in 2011, as declared by Microsoft.

What Is A Computer Virus And What Does It Do?

A computer virus is basically a program which enters and gets installed on your computer and which can simultaneously execute or run on its own when a specific type of file is clicked. A virus can enter a computer either when you receive an email or you transfer a file, which is infected from one computer to the other.

The effect of a virus can be fatal to the machine to the extent that it gets damaged, files can be deleted, corrupted, boot sector over–ridden and hard drives could stand formatted. A virus would be generally a program which either executes on its own or asks for execution such as an exe, SYS, OVL, OBJ, PRG, MNU and BAT files.

Generally a virus would be attached along with legitimate program and would execute as soon as a genuine program is executed. This is done so that the user is not aware about the virus getting executed and in the meantime the virus would have done its part.

Many times a virus changes its code on its own when it moves from one computer to other. This is done so that user is not able to make the virus ineffective.

In India generally W32/Coronex-A viruses are found which will affect the address book and start phishing mails or fraudulent mails and fool other users.

Various types of Computer Viruses are:

1. Resident virus: These are the viruses which reside in your PC’s RAM. These viruses end up corrupting various programs that are installed and running on your machine.

2. Boot Virus: These viruses reside on the boot sector of your hard drive and thus it affects the operating system.

3. File Virus: These affect the .exe files to which they get attached.

4. Multipartite Virus: These viruses are a combination of Boot and File Virus. These viruses cause maximum infection to the machine since they affect both the boot sector of the hard drive as well as the files stored on the PC.

5. Network Virus: This is the virus which spreads through LAN and via Internet.

6. E-mail Virus: This virus gets attached to all the contacts in your Email list and it spreads once the mail is opened and viewed.

7. Macro Virus: All programs like MS Office that use macros get infected by this virus. These viruses are operating system independent meaning they can affect any system irrespective of the operating system it uses.

There are various anti-viruses and firewalls that have come up to counter affect these viruses and stop them from attacking your PC. Some of the common and most widely used are BitDefender, Norton, F-Secure, ESET NOD32, Kaspersky, TrendMicro, Panda, AVG, McAfee, ZoneAlarm and GData. The best way to protect your PC is to use a good anti-virus program that is updated regularly and simultaneously use a good firewall too.