Operating System What's Safe?

Do you know what operating system the most vulnerable from attacks by computer viruses? The answer is definitely someone to answer Windows-Microsoft-is due to be used by the majority of computer users in the world. The virus makers do not want to loss of taxable nyiptakan virus but only a handful of computers on aja. So if unwilling to deal with viruses, some computer users prefer an alternative operating system such as Linux or Apple computers use aja Macintosh operating system with its famous tough in order not to deal again with whose name the virus.

That is, if on the computer. So if the mobile device, Smartphone or PDA about what operating system to use the most secure from virus attacks which now start reaching this gadget wireless communications?

The answer was unexpected. Precisely the opposite of a computer. That is the safest it has the Microsoft. Namely Windows Mobile.
Many mobile viruses are created to attack the Symbian smartphone platform, which was used by a majority of almost all mobile phone vendor companies.

So if you want to secure from viruses, select the operating system as I mentioned above can be used as an option, besides really need a reliable anti-virus program to fortify your operating system.

Why Firewall it's very important ?

Can you imagine having a set of computers connected in a network without a firewall? No one would dare to do so nowadays. So what is this firewall? It is a set of related programs located at a network gateway. This is used to ward off unauthorized access to the network and allow only authorized access.

There could be different types of firewall - it could be a hardware firewall or a software firewall. A hardware firewall is usually a router device, whereas a software firewall is listed software used to provide security to the network.

A firewall can be used only if there are at least two network interfaces – one for the network it is intended to protect, and one for the network it is exposed to.

So how does it work? A firewall checks all traffic routed between the two networks to find out if it meets certain criteria or not. If the criteria are met, it’ll be allowed to go ahead, else it will be blocked. A firewall checks every traffic, whether it is inbound or outbound. A firewall filters every traffic coming in and out of the network. It can filter based on source and destination, which is known as address filtering.

Now, there are certain techniques for the firewall to work properly.

1. Packet filter: Here, each packet coming in or leaving out of the network is looked into. This is based on user defined rules and on the basis of that, it accepts or rejects traffic. It is effective but tough to configure.


2. Application gateway: In this, it looks after certain applications like FTP or telnet or http. This has been found to be very effective but sometimes causes performance degradation. You can get some gateway technical support to learn more about it.


3. Circuit-level gateway: Here, it applies security when a TCP/UDP connection is established. But once the connection is made and secured, further checking is not done.


4. Proxy server: In this, it intercepts all messages entering in and leaving out of the network.

Difference Between 32 Bit n 64 Bit Architecture

If you are in the market for a new computer, you might have noticed that there now seem to be two different versions of Windows, known as 32-bit and 64-bit. In truth, these different versions have existed since XP, but it is only recently that 64-bit operating systems have become popular in laptops and desktops sold to consumers. The differences between 32-bit and 64-bit operating systems have roots in the architecture of computer processors.


History
1. Both 32-bit and 64-bit architecture setups have been around for decades, but were mostly used in complicated enterprise computers like the IBM 7030 Stretch, built in 1961. 32-bit architecture was available to consumers in the 1980s, and the Intel 386 was one example. However, Windows did not become a 32-bit operating system until Windows 95. Windows XP was the first consumer version of Windows to receive a 64-bit edition.
Architecture
2. The term "32-bit," when referring to a processor or operating system architecture, refers to the maximum size of an integer register a processor can store. A 32-bit architecture can store data which is 32 bits wide, while a 64-bit architecture can store data which is 64 bits wide. 64-bit architecture can simply store more bits than 32-bit architecture.
Maximum RAM
3. The ability to store more bits means that a processor with a 64-bit architecture can, when paired with a 64-bit operating system, address more memory than a 32-bit architecture. A processor with a 32-bit architecture can only address four gigabytes of memory. The same goes for a 32-bit operating system, even if you have a 64-bit processor. The maximum memory that can be addressed with a 64-bit architecture is 16 terabytes.
File Size
4. The larger number of bits that can be addressed by a 64-bit processor also translates into the ability to store files of a larger size. For example, Windows XP 32-bit cannot make use of a hard drive which is larger than 8 terabytes and it cannot make use of a file which is larger than 4 gigabytes. While there are few instances where this is a problem today, some files, such as high-definition videos, are starting to encroach on the 4-gigabyte file size limit.
Compatibility
5. Programs created only for a 32-bit architecture or operating system won't always work on a 64-bit version, and vice versa. This is because the 32-bit and 64-bit operating systems store data in different ways. Most modern programs offer compatibility for both, but attempting to run a program which was built for a 32-bit version of Windows XP on a modern 64-bit version of Windows 7 may cause the program to crash. Also, device drivers are not compatible between 32-bit and 64-bit versions.

Using And Upgrading The Windows 7

The latest addition to Windows operating system by Microsoft is the Windows 7. Millions of users across the world use Microsoft products and the Windows 7 is no exception. There are many who are not yet familiar with the usability of this application including the upgradation process. It is easy to upgrade it from your earlier version by following the manual step by step. You can buy Windows 7 from an online store that exclusively deals in Microsoft products. You do get a certificate of authenticity, so there are no chances of being duped of a pirated operating system. If you buy Windows 7 online instead of from a retail computer store, you get discounts besides the stamp of genuineness.

When it comes to the upgradation process, you should be aware of your system requirements as well as other factors. For example, if you upgrade from Windows XP to Windows 7, you will have to install a new Windows 7, as the former has no direct upgrade path. At the same time you can get the applications and files manually migrated to Windows 7; for this you need to have a backup of your XP. A dual booth of Windows 7 and XP is also possible in your computer.

If you are upgrading your Windows 7 from Windows Vista, you stay at a competitive advantage as there is a direct upgrade path in the latter. Hence, you need no backup of your Windows Vista and the files and applications will automatically migrate once you upgrade. To be on the safer side, it is always wise to have a backup of your previous files and folders. There is also facility of a dual booth of Windows 7 and XP in your computer.

You can seek the help of an expert to complete the upgradation process in case you are not well-versed or confident. The increasing number of users of Windows 7 across the world well substantiates the operating system’s popularity, usability, flexibility, and ease of use. It is many times faster than the earlier versions and other operating systems and if you count more on effectiveness, buy Windows 7 online and experience a better tasking. If you buy Windows 7 in its full version, you will have to pay more than the upgrade version.

If you are a professional working from home, you need an operating system that will help you manage work effectively. Windows 7 Professional is the ultimate choice for such a usage. Small business establishments across the world have started relying on this software; buy Windows 7 Professional and be a part of the race! As far as system requirements are concerned for using Windows 7 Professional, take into account the following considerations:
Processor of 1 GHz or faster 32-bit (x86) or 64-bit (x64)
16 GB of available disk space with an additional 3 GB for download
Memory of 2 GB RAM (64-bit)/1 GB RAM (32-bit)
DirectX 9 video card with WDDM 1.0 driver
Other requirements as per usage.

What Registry Cleaners Do For You

Registry cleaner is the answer to clean the registry of unused and redundant files to improve the working of your computer.

Before we understand the need of registry cleaner, let us understand what registry is and why you need a registry cleaner to enhance PC performance. Just as you would store your documents in a file, the Windows stores all information about your computer in a Registry, such as all the software and hardware settings, and everything about the system configuration. It is the most critical aspect of the operating system, and needs to be cleaned periodically. A Registry Cleaner is a program that looks for and deletes outdated entries.

Using a registry cleaner periodically will make your computer run better. Registry was first introduced by Microsoft in Windows 95. Before this, configuration settings were all stored in INI (Initialization) files scattered all over the hard drive. Due to this, it was quite difficult to keep a track of them. A registry consolidated all information in a central location. It is a central cache of all settings, options, and preferences of the PC, manages the start up options, and keeps a track of the various software installed in the system.

Removing The Build Up

Over time, the registry in a computer builds up and this can make the computer unstable and have a slow start up. As you keep on using your computer, the registry keeps on building up with obsolete and unnecessary information. These need to be cleaned up using a registry cleaner.

This is especially true for Windows 95 and 98. However, Windows NT, XP and 200x also have a lot of entries that are not necessary, and are created when programs are installed or removed. It is always advisable to use a registry cleaner to remove these unwanted entries to make your computer run faster.

The registry cleaner scans the registry to trace the obsolete data, deletes it to enable your computer to run error free and enhance the performance of your PC. Most cleaners have a backup function to help you backup your registry before cleaning it, in case you encounter a system failure, and some files get deleted inadvertently. You can get a free registry cleaner or trial version. But the free or trial versions have their limitations therefore it is better if you select a licensed registry cleaning software for this purpose.

A damaged Windows registry in your computer can corrupt your whole system, rendering it unusable. To keep this vital part of your computer in a good working and an un-bloated condition, a good registry cleaner should have the following features:

*Automatic scanning of the registry and its cleanup *Backup and restoration of the full registry *A startup organizer *Removing Trojan, which utilizes startup files

One particular registry cleaner may not be compatible for all types of computer systems. They have their own minimum system requirements, such as:

*Some that are compatible with Windows 98, ME, 2000, or XP may not be suitable for other versions of Windows. *Some require a particular class of processor with a certain amount of RAM. *You may need a certain amount of empty hard disc space.

Now decide, do you need a registry cleaner or not?

Download CCleaner

CCleaner is the number-one tool for cleaning your Windows PC. It protects your privacy online and makes your computer faster and more secure. Easy to use and a small, fast download.

Features

CCleaner is our system optimization, privacy and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it's fast (normally taking less than a second to run) and contains NO Spyware or Adware!

Cleans the following:

Internet Explorer:
Temporary files, history, cookies, Autocomplete form history, index.dat.

Firefox:
Temporary files, history, cookies, download history, form history.

Google Chrome:
Temporary files, history, cookies, download history, form history.

Opera:
Temporary files, history, cookies.

Safari:
Temporary files, history, cookies, form history.

Windows:
Recycle Bin, Recent Documents, Temporary files and Log files.

Registry Cleaner:
Advanced features to remove unused and old entries, including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more... also comes with a comprehensive backup feature.

Third-party applications:
Removes temp files and recent file lists (MRUs) from many apps including Media Player, eMule, Google Toolbar, Netscape, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more...

100% Spyware FREE:
This software does NOT contain any Spyware, Adware or Viruses.

if you want to download this program click here

PC Tune Up for Smooth functioning of Your Computer

The smooth working of your computer depends on how well the PC tune operations have been performed on it. Computer tune up can be regularly scheduled and some of the tune up software also comes with schedule for regular system scans and cleaning. The repair and maintenance provided by some companies is very credible and you can depend on them for all sorts of help. Their long and varied experience in computer tune up and repair equips them with in-depth knowledge to look into problems like boosting PC speed, repair of dll file, registry repair, computer optimization, ways to speed up PC, Fatal Error Support besides the regular tune ups like virus scans and disk defrag.

Lots of tools are available for free PC tune up from the internet. These tools can be freely downloaded to be used for PC repair or tune up. You can get complete information on all these tools with comprehensive set of instructions on how to use them. Online computer repair and maintenance services are provided by Microsoft certified professionals and they guide you through all these processes. The payment plans for PC tune is important to consider too. You need to get only those plans which you need. Computer tune up through annual support plan can be very beneficial for those folks who have very little technical knowledge.

Those who need PC repair and support for only some specific issues can go for pay per incidence option. It is given with a lot of free tools which can be used for the security and protection of your PC. It has been generally observed that many customers have had to opt for annual plan even after having taken the pay per incidence once. So, it is advisable to give it a shot even if you think you have got it covered in terms of keeping up the efficiency of your computer.

PC tune up download available on the internet should be put to good use and it is always a goo idea to get complete instructions on how to go about it. You would get that from the Microsoft certified technicians at your disposal from the computer support companies of repute. The convenient options of payment as well as taking support by these companies really make it worth taking. Online computer repair or phone support of credible PC repair companies relieves you from all worries of doing it yourself.