Monday 11 August 2008

Spyware Is Your Computer Safe

Author: Parveenn Kumarr
Spyware is the virtual plague of the new Millenium. You no longer have to receive emails with viruses in them or even click on dangerous links on websites. Simply surfing the web can now leave you wide open to the scourge of spyware. You may also hear spyware referred to as malware.
What is spyware? Spyware is when a program is placed on your PC without your consent. The most common way for this to happen is when you install a separate application such as a file sharing program or free download utility on your computer. The program you install also places some "extra" programs on your PC. These extra programs perform tasks from recording what websites you visit to popping up ads on your screen. More worrying are the spyware programs that record everything you type on your keyboard. That's right. Your most private instant messages, emails and chat room discussions can easily be stored and transmitted without your approval. Scary stuff!
Are there different types of spyware? There are many different classifications of spyware but the following are the most dangerous types:
Adware
The most common type of spyware. These are small programs which sit on your computer waiting for you to go online. Once the adware detects that you're connected to the Internet it starts sending you popup, popover and popunder ads for anything from airline tickets to porn site membership. Not only that but information on your viewing habits is then sold on to marketing companies who will then send you more junk email and popup ads than you ever thought possible.
Browser Hijacker
These are just plain annoying. These install themselves on your computer and change your default homepage and search engine to something else. Every time you start your web browser it will bring you to a page filled with ads, porn or other unwanted material. This interrupts your web browsing and is intensely annoying. Most browser hijackers are also data miners. A data mining program reports your web browsing habits to a central database. This information is then sold on to marketing companies.
Keyboard Logger
These programs are designed for one thing - theft. When you log in to your online banking these can record your PIN number. When you check your private email account these programs can record your password. Keyboard loggers are potentially one of the most damaging pieces of spyware because of the potential financial dangers and theft of personal information.
Modem Hijacker Potentially the most costly spyware. Modem hijackers are also referred to as diallers. Diallers normally install themselves to your computer via a virus infection or from warez, mp3 or adult websites. A dialler is a small piece of software that will dial long distance, premium rate phone numbers when you're not at your PC. These phone numbers are normally for adult chat line services located in Russia, China, South America and the Phillipines. I have personally seen unlucky victims receive $2,000 bills for one month of telephone calls.
How do you remove spyware from your PC? Thankfully several responsible companies have made it their mission to help eradicate the menace of spyware. You'll need 2 - 3 programs to remove spyware from your PC. The first of these is Ad Aware which is a free download. The second application is Spybot Search and Destroy which is also a free download. Last but not least I'd recommend also getting yourself a copy of CrapCleaner 1.0. These applications can only remove the spyware already on your PC - they cannot protect your PC from being cluttered with new spyware.
How do you stop spyware infecting your PC?
1. Do not click on links offering free movies, competitions, prize draws, free software or anything that looks suspicious. If it looks like a dog, smells like a dog and walks like a dog... well it's a dog.
2. Install firewall software. This is absolutely critical for Broadband or Highspeed users. All computers connected to the Internet today should have firewall software installed - regardless of your connection speed.
3. Make sure your antivirus software is updated. Good antivirus software can find and delete the most

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Tuesday 5 August 2008

The World of Computer Speakers

Author: David H. Urmann

The most well known speaker in the world is out to give you yet another stunning performance. Computer speakers are such in demand in the market now. People using the internet, teenagers hooked with their on line games are the primary users of this electronic device. Their ground-breaking inventions and improvements will surely fascinate you.
A computer speaker is a built-in device that generates the sound from the computer. This kind of speaker is designed for PCs or personal computers. A lot of different computer speakers can connect via a jack, USB, RCA connectors, socket and plug. They are commonly designed as attractive, small and versatile.
There are also durable brands that are a bit expensive but are worth the price. Computer speakers can also be used when you are listening to music, playing 3D games or watching a number of movies.
Moreover, computer speakers are in demand in the market now. People using the internet, teenagers hooked with their on line games are the primary users of this electronic device. Even the movie addict who only knows how to download their favourite and the latest movie on the net is obsessed with the idea of a good sound woofer in order to imitate their home theatres.
External speakers or the multimedia speakers are commonly equipped with a low-power internal amplifier. The standard audio connection is a stereo jack pug about 3.5 mm and coloured green for computer sound cards. Some uses an RCA connector for input but there are also types who use USB speakers which are provided with 5 Volts at 200 milliamps which can allow about a half watt of output power. They usually have an equalization feature for treble controls and bass. Computer speakers usually range from low quality, high-quality and expensive speakers.
Computer speakers vary greatly in price and quality and the typical speakers that are included in the computer package is mediocre in performance and sound quality.
Listed below are some of the types of computer speakers
• Logitech Z_2300: This computer speaker is loud and nice. The sound comes out without distortion or losing clarity. This is even at a high volume level. The Z_2300 computer speaker has a two forty watt satellite and a one hundred twenty watt subwoofer. The Logitech computer speaker is an adapter speaker that can be used in DVD players as well as in gaming.
• Lansing VS2421: This brand of computer speaker is a high-quality basic speaker. The VS2421 has a thirty five Hz to twenty Hz for a full volume sound. It also uses twenty eight watts of electricity. This computer speaker device has a hardwire remote control used for controlling the treble and volume. Its hardware remote control includes a mute button, auxiliary input both for CD players and MP3s, as well as a microphone.
• Logitech Z_5500: This brand of computer speaker device consists of six speakers as well as a subwoofer. This five hundred five watt Logitech speaker is the best speaker for movie buffs and computer gamers. The Z_5500 speaker has a very high volume level and bass control. It can also be used in CD players as well as portable DVD players.
• Tritton USB Portable Computer Speaker: This computer speaker is especially made for portable computers. Tritton USB speakers have a fixed subwoofer that is suitable both for low and high volume control. This type of speaker does not need power adapters or even batteries. This USB portable computer speaker is powered by fifty centimeters of USB cable. This speaker uses about one hundred ten to two hundred watts.
• Edifier S2.1 computer speaker: This computer speaker features three different inputs such as analog and two digital inputs. The two digital inputs inside this speaker consist of one optical and one coax. The S2.1 speakers have a wired remote, LFE, treble and loudness volume. This computer speaker comes with four meters of optical cable and three meters of cable stereo analogue. It also has a decent high output for a sixty-five inch subwoofer. Edifier speakers have removable grills. The S2.1 has a maximum of one thousand power consumption.
• Groove PM21Computer Speakers: This speaker brings high-qualities of sound. It also mixes great sound to PCs and laptops. PM21 has a simple set up composed of three speakers as well as a modern design for flat monitors. It also includes a compact style that is suitable for travelers. This speaker is around two hundred twenty watts. Groove computer speakers bring a clear and nice sound to every computer.
• Cyber Acoustic 3001 Personal Computer Speakers: This kind of speaker for computers is the best and most affordable three-piece subwoofer for computers. It has a suitable desktop volume level and cloth grill coating. The speakers have three poly carbons, two high rate satellite radiators plus a high quality woofer.
• Labtec Pulse 430 Personal Computer speakers: The Pulse speaker has a tall three-piece audio that is cheap and very convenient for everyday usage. It also has a great subwoofer for throbbing bass as well as packed in satellite speakers. This three-piece powerful speaker provides realistic, dynamic, powerful and crystal clear sounds. Labtec Pulse features a USB, jack, socket and plug connector.
• Hidden Spy Computer Speakers: This speaker delivers high quality, powerful clear sounds. Computer speakers of this brand have an attractive style as well as coat cover speakers. It has a USB cable and jack connection. Hidden Spy speakers are around one hundred ten watts to two hundred twenty watts.
Thus, when it comes to recently featured computer speakers, Altec- Lansing is well known and respected. This is due to the long years it has put in developing the best sound woofers for your computers.
In fact, Altec-Lansing released their new high-end computer speakers. It has a simple, elegant style and complete with fantastic sounds, making it perfect for people who only seek quality computer speakers for their computers and audio devices.
Their FX series possess a remarkable sound from the FX satellites' REAL two-way system. This means that each satellite has two drivers that are both active. The beauty of this new innovation is that the FX 4021 and FX 5051 can be mounted on the wall. Thus, the first 5.1 system of FX5051 can offer the advantage of having a USB plug -and -play connectivity, which adds to its ease of use.
Comparing the FX 4021 and the FX 5051 specifications, with regards to its unique features are as follows:
FX 4021 uses an isobaric subwoofer with dual 5.25 inches woofers. Aside from this, the rest of the specifications are already similar to the FX 5051. Hence, the FX5051 is similar on some specifications with the FX 4021 but it has a better isobaric subwoofer with dual 6.5 inches woofers, a USB 5.1 connectivity, digital hardwired controller for stand-by, master volume, bass, treble and centre controls.
It also needs a minimum system requirement of a personal computer with a 500 MHz processor, Operating system of Windows 98SE, 2000, ME or XP, a minimum Random Access Memory of 64 megabytes, music and game title that is encoded for 5.1.
This is along with an available Universal Serial Bus or USB port.Both models have a two- way satellite that can be mounted to the wall. Plus, each satellite possesses the following:
• a 40 mm midrange driver
• 18 mm tweeter
• wireless remote for controls
• built in cable management
• conveniently located auxiliary input for mp3
• portable Compact Disc players
• Head Phone jack
Another innovative invention is the FX6021 which has a so called InConcert technology. This can be for music, home theatre or gaming addicts.
Moreover, this technology can deliver a crisp, clean, full- volume sound that feels like its covering every bit of you. This can even express s sound that is in a straight forward manner, not up and down. This means that the sound is clearer and uncluttered by the reflections of the ceiling, wall or floor.
Aside from this, it also has two super slim satellites that feature 12 neodymium one-inch micro drivers. Each micro driver is supported by its very own distinct amplifier. A 6.5 inches subwoofer accomplishes the sound through its low- frequency and a full- throated bass.
Comparing this high end speaker, FX6021, with a high performance speaker like the VS 4221 that possesses an impressive bass capable of registering on your Richter scale, they are still not on equal footing. This is due to the fact that the VS4221 has a 3 inch driver for a warm, uniform sound, capable of surrounding an entire room. The stunning result would be robust, rich sounds that only very few woofers can match.
Thus, a wide selection of speakers is now available and they differ depending on the user's demands and needs. With this, it is imperative that you are constantly updated on the types of computer speakers available in the market. This way, you will be able to keep in touch with how the evolving technology can work to your advantage.

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