Computer firewall is an OS based software designed to control the access to unauthorized content on a network or a computer system. It works with predefined set of rules, according to which it decides whether to block or allow access.

Windows firewall is the firewall application used by many windows users. It acts quickly to the attacking Trojans and blocks the access to those networks. Access to the blocked networks is possible only when the setting of the application is changed.

This firewall technology was found in the 1980s, when internet itself had not reached the people widely. Routers were used to separate network accessibility and the demand for network security was not necessary.

The growth of the internet has brought in to the introduction of many firewall applications, each one having different features. Windows firewall is an application offered for free with the purchase of Windows OS.

Since the function of the firewall is based on the set of rules, it can often become worthless, if not configured properly. Optimized analysis has to be done on a computer followed by changes in the settings for complete protection.

The functions of a Computer firewall are classified into three generation sets. All three functions are necessary to provide online and offline support. These generation sets control the installation, copying and sharing of a file.

The first function is called a “packet filter”, which stays focused with the data units transferred from the network. The second one, called as “stateful filter”, which records the list of connections passed and uses this to determine the state of the packets.

The third function is a proxy based application layer firewall. This detects the applications and protocols sneaking in, through the non standard ports. Harmful and abused protocols are also blocked.

Application layer-firewalls works on the application level of the TCP/IP stack and may intercept all packets traveling to or from an application. They block other packets. These application firewalls will prevent all unwanted outside traffic from reaching protected machines. On inspecting all packets for improper content, firewalls can prevent outright the spread of networked worms and most harmful Trojans.

Introducing the Asus W90Vp-X1 Laptops are with high desktop-quality gaming notebooks. And these laptops are includes best features for better performance. It has everything that we except and more features. It includes dual ATI video cards and Intel processor can go from fast to faster performance.

It is a mobile gaming system product that works like desktop with high processing speed. The current price of this laptop is $2,199. It supports 6GB RAM, 8MHz DDR2 and Intel X38 chip set. These laptops are furnished with blue brushed metal to outside and inside it’s coated with a mix of black brushed metal.

The massive wide-LCD screen with dimension 18.4 inch offer a 1,920×1,080 native resolution. Because of this we will get perfect 1080p HD content. This makes best caliber to this laptop. We can watch games and movies with incredible quality and gets plenty bright for comfortable use regardless of what’s going on screen.

Asus W90Vp-X1 having a matte-black keyboard which is looks good and feels small in comparison to the other. Two sensitive control panels are located on above the keyboard and other on the left side.

The controls are like media playback, volume, display button are available on key board. The other controls which are for balancing screen brightness, muting audio and controlling of touch pad. These controls are the best features for Asus W90Vp-X1 laptops. It uses built-in 2 megapixel webcam at the top of screen.

This laptops are supports plenty of ports and connection options. And Asus provides two video out puts, the power jack for massive power supply. We can find modem and Ethernet jacks on the backside of the laptops. Al these connection ports are designed well for a desk-bound system.

Depending of additional features Asus released two different laptops. Asus 90Vp-X1 supports Intel Core 2 Duo processor at 2.8GHz speed up to an over clocked 3.28GHz. Whereas other model the W90Vp-A1 is more widely available and additional features which are 2GHz Intel Quad Core Q9000 processor, a secondary 320GB hard drive, and a Blu-ray combo drive.

The W90Vp-X1 replaced all other notebooks in our processor-intensive performance tests when it is running in over clocked mode. The Asus W90Vp-X1 works for 1 hour and 18 minutes on our video playback battery drain test. It uses included 12-cell battery. We can expect longer life from web surfing and office uses. Asus providing a step-up two year warranty services for major parts and 1year accidental damage warranty for against fires and power surges.