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Friday, November 6, 2009

Is Digital Photography Expensive?

Being such a fascinating device as the digital camera, this technological masterpiece is of course a precious and priced possession. And acquiring it also means that one time achievement feeling. Thus a person must also be very careful and at the time quite a little knowledgeable in order to make a good purchase and not lose a good bargain in the maze of soaring prices and mist of exaggerated cost myths. This discussion is again focused to pierce that mist and unravel that myth to reveal the truths and facts regarding the actual and economic cost of a digital camera!


As per recent marketing trends, the conventions has it that there are only two types of digital camera users, firstly the average people who only craves to push the button, and secondly the professional photographers, people who looks for good control over the digital camera and its well carved features and are willing to pay virtually any price. Thus with this idea in the back of the entire process of sell and purchase, diverse levels of resolution for such digital cameras are available that are the real culprits in defining the price range of the cameras. United with such singular features the digital cameras come in a spectral variety of price range for an even varying customer range that are willing to pay anything from £30 to £1,500. The cost of an average digital camera probably lies in the region of £260, however in spite of this a person must be aware of what functionality or resolution that he or she is looking for and ultimate paying for, so that the purchase does not result in too much in exchange of too little of whatever must be desired from the digital camera. A person must self analyze the reasons for purchasing the digital camera before venturing into an expensive rendezvous. He or she must be aware of what the real purpose is, is it only snapping for casual reasons or a serious plan to produce super quality photographs to be printed as art or for professional purposes.

Looking into the price index in a little more detail reveals more facts! SLR (single-lens reflex) digital cameras have attained quite a price shedding with the invention and market release of digital cameras like Canon's EOS Digital Rebel, an SLR priced below $1000, perhaps the very first of its kind. Even with certain add on into the digital camera that even add to the price a bit more, still the Rebel cost remains about $600 below its flanking competitors. However comvention has it that these standard digital cameras cost around $2500 to $4,000.


In an effort to find out the reasons behind such soaring high prices, research reveals that digital camera sensors are, for all intents and purposes, computer chips. The bigger the computer chip, the more likely it is for errors. The reason remains that a single blemish in the silicon wafer may reduce to rubble an entire chip. Thus the random flaw increases with the size of the wafer. This is the exact reason why costly chips like Intel Pentiums processors are basically not bigger than 20mm square and can be also manufactured in greater volumes. Yet with the reduction in size the prices soar up and this proves the high costs of the digital cameras.


Thus it becomes clear from this discussion that a predetermined mind set is required when approaching for purchasing a device like the digital camera. This discussion provides an overview of the price ranges of good digital cameras, but a person must identify his or her own needs and preferences and have an open mind but with some notion of what a good but should be, and the cost of the digital camera would be a guaranteed perfection!

Source from: By Jakob Jelling
http://www.snapjunky.com

9 Steps to Protect your MS Windows System from Viruses

Nowadays as the Internet and other networks are greatly developed computer viruses are distributed rapidly and intensively. Everyday several new viruses capable to damage considerably your computer system arise. Anti-virus specialists work hardly to make updates their software against new viruses as soon as possible. The viruses can get inside computer in different ways. That is why there is no simple method to protect system. Only series of measures can give you reliable protection from the infection. Below are 9 steps to protect MS Windows based PC system from viruses.

. Make regular backups. It should be said that there is no absolutely safe way of protection. Virus creators regularly find holes in new computer products to use them for infection of computer systems. Some dangerous viruses can considerably damage data files or even erase entire file system. Make regular backups of your data files to separate file storage device. It can be separate hard drive, flash card, compact disc or another file storage device which you choose. To ease the procedure you can use some automatic backup software. And be ready if the system will die because of virus infection.

2. Be ready to reinstall your system if it dies because of viruses. Get distributives of your operation system and distributives of software which you use and keep them together, for instance, on a set of CDs not far away from you. In this case if virus infection will cause unrecoverable system failure you can rapidly reinstall your working medium.

3. Protect your network connection with Firewall. Firewall is a software which blocks suspicious potentially dangerous connections to preventing viruses from network to penetrate into your system. Windows XP system has quit simple but reliable built-in firewall. You can enable it as follows. 1) in Control Panel, double-click Networking and Internet Connections, and then click Network Connections. 2) Right-click the connection on which you would like to enable firewall, and then click Properties. 3) On the Advanced tab, check the option to Protect my computer and network.

If you need more flexible control of connections with network you can get and install more advanced firewall software like Norton Personal Firewall or Outpost Firewall. If you use this software you have ability to permit or to block particular connections and to monitor network activity.

4. Use antivirus software. Install antivirus software which will scan your system searching and erasing viruses on a regular basis. Leaders in antivirus software products for Windows systems are Norton Antivirus, McAfee, Kaspersky Anti-Virus and PC-cilin.

5. Regularly update operating system. Windows XP has built-in automatic update service. It regularly contacts Microsoft server to find updates and notifies you if updates are ready to be installed. Updates are important because hackers regularly find holes in operating system which are often used by virus creators.

6. Don't install and don't run suspicious software. Check new programs which you are going to install with anti-virus software. Don't download software from suspicious websites. To download software always seek website of software creator or official distributor. Do not open applications received by email from unknown persons.

7. Limit access to your computer. Protect enter to system with password.

8. If you use Internet Explorer, consider moving to another browser. As IE is the most distributed browser today virus creators actively use defects in its security system to infect computers. Infection may arise if you will visit webpage which contains invisible harmful code. You are more safe if you use less known browser only because virus creators do not pay much attention to it. Major IE competitors Firefox and Opera browsers provide now the same comfortable interface and range of services for working on the Web.

9. Use spam protection. Viruses are often distributed via email. Switch on spam filters in your email box to block spam receiving. If you need assistance with using of the filters you can ask your email service provider.


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