You may have heard about spyware and adware from some of the tech geeks at work, but what does it actually mean to you? Surely, these kind of things only affect business computers and servers, right? Wrong. Spyware and adware can be downloaded onto any computer, regardless of whether you’re at work or surfing the web at home. It doesn’t even sometimes come from what you would think would be the most likely candidates: porn sites, gambling sites & other illegal material. The unfortunate part is that sometimes companies that we think to be reputable can actually be using spyware as well to track your every move.

Spyware and adware do not work like a typical virus. Normally they are not as malicious, but they can be just as annoying and incredibly difficult to get rid of. They usually end up appearing on your web browser as a new toolbar up on top, and/or triggering random pop-up ads at certain times. What’s happening is these programs are being downloaded and keeping track of your information: the web sites you’ve been to, your search history in Google, Yahoo or another search engine….possibly even your passwords. They’re also doing things that use up your computer’s valuable resources or hijacking your homepage and switching it to some random search site automatically.

You can quickly see what a nuisance this can be, particularly if you end up having a lot of these programs downloaded to your computer. Such applications, when triggered almost simultanously, can cause you serious problems and a lot of time and effort in repair after the fact. Fortunately, however, there are many spyware removers and anti spyware programs that are available to you that you can download; some even have free trial versions. Nine times out of ten, they are very simple to use and can root out files and cookies on your computer that are associated with spyware.

That said, once you download one of these applications, you must be vigilant and remember to use the program on at least a weekly basis in order to avoid further outbreaks. It helps to download a spyware remover program that also contains an adware shield of some sort that is running in the background and blocks the download of a new piece of spyware before it occurs.

Also, be sure to always know what kind of a link you’re clicking before you click on it, even if it is from someone you think you know. Usually, spam e-mails contain click here links that will download some piece of spyware, but your friend might send you a link on AIM or something without even knowing that it is a link to download spyware. These incidents are more common than you might think. Again, a spyware remover program that runs in the background can be of great help here.

If you know how to protect your computer from spyware before it gets downloaded, then you’ll be much better off, and you’ll be able to surf the web freely and safely without having to call up the PC tech place down the street to fix your computer for outrageous fees.

Adware and Spyware Removers A Beginner’s Primer is a post from: Techno And Science News | gzsmsj888.com

A router can only handle so much information coming into it at one time. Every machine has its limits and routers are no exceptions. Well, when the nasty trend of denial of service attacks started early this century, routers were unprepared for them. As they began to understand what was happening they began to compensate for the problem. But there was still a way around it. To understand this we first have to understand what a denial of service attack is.

A denial of service attack is just as it sounds. It is when someone prevents the router or routers from servicing the network. The question is, how do they do this? As previously stated, a router can only handle so much information coming into it to be routed at a time. If too much information starts coming in then the router gets overloaded and can’t forward the information fast enough. Ultimately, what happens is this slows the network down to the point where nobody can access it. In a denial of service attack, which is a deliberate attempt to cause this problem, a person will send an enormous amount of information from one computer to the router at one time. Eventually this will effectively shut down the network. The reason is because of the trickle down effect. Once the main routers start to get overloaded they start to send messages to the rest of the network that the connection is full. These messages start to cascade through the entire network until all the pathways in the network are full and nobody can communicate with any server on the network.

When companies and web sites began to understand what was happening then started to put safeguards in place. They would put checks in the router software to see if a large amount of information was coming from one IP address. If so, then it simply discarded the information and didn’t attempt to pass it on. It seemed that the problem was solved. Not so.

Hackers began to figure out that if they send this enormous amount of information from multiple computers or IP addresses, the routers would have no way of knowing that a denial of service attack was in progress because it would see all this information coming in from multiple locations. Ultimately again, the network would effectively be shut down.

In response to this, manufacturers of routers have placed additional safeguards into their routers to simply check for unusual traffic. The problem with this is that in some cases there is a large amount of traffic that is normal, like in the case of a news site being hit with an overload because a major breaking story hits the airwaves.

It remains to be seen if the hackers or the router manufacturers are going to win this war.

Router – Denial Of Service Attacks is a post from: Techno And Science News | gzsmsj888.com

Carbonless paper uses a chemical reaction between two different contacting coatings to transfer an image when pressure is applied. A paper that is most often used for multiple part forms, it contains a chemical coating on the front side (designated as CF) or on the back side (designated as CB), or on both sides (designated as CFB). When a handwritten or machine impression occurs on the first sheet of multiple parts, the impression transfers from one page or ply to the next due to the bursting of tiny microcapsules in the chemical coating used to release a darkened copy of the impression occurring on the first sheet.

A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.

The present invention relates to a process for producing a foam wrap package, and, more particularly, to a process for wrapping and protecting a roll of pressure-sensitive carbonless copy paper by simultaneously wrapping interleaved layers of stretch film and packaging foam onto the roll of carbonless paper.

Heretofore, stretch wrapping machinery manufacturers have marketed equipment which combines spiral wrapping of stretch film with limited non-spiral wrapping of a single face corrugated medium or a kraft wrap. Traditionally, machines have been developed which provide foam wrap in one operation and then kraft wrap in a second operation, and have required a substantial amount of the wrapping process to be performed by hand.

Problems have occurred in the prior art with the existing foam/kraft packages. Specifically, these packages using kraft wrap cannot apply foam over the edge of a roll of pressure-sensitive carbonless paper without producing a bulky edge that makes roll stacking difficult. The absence of foam over the edge of the roll of carbonless paper leaves the roll subject to edge damage. Prior to this time a sufficient wrapping procedure or a final wrapped package has not been achieved in the art which would require only a relatively limited capital cost and produce a resultant packaged product which is easy to handle.

Tag: Carbonless Paper Roll

Carbonless paper roll producing a foam wrapped package. is a post from: Techno And Science News | gzsmsj888.com

My favorite game was Monopoly a game that give me an insight to Real Estate (ironically enough, I now have a career as an Estate Agent). Is that a coincidence or did my childhood obsession with Monopoly play on by subconscious?

Many Sunday afternoons were spent with my four sisters playing, or should I say rowing over this fabulous game. The first row would normally be about who would like to be the iron, shoe, car etc (these were the items that you had to chose from to represent you on the board as you played). My favourite was always the dog!

The next row would be about who went first, and then the next would be about who would play the role of the Banker.

Finally the game would begin, and how much fun we had. Hours and hours of fun week after week.

How things have changed? Today, whilst we still have the old traditional Board games, and I guess we always will, Games are far more advanced, and are often played on computers, or via DVD Players using your Television sets.

You can now play a board game on your own against a Computer (who will act as your opponent) as opposed to playing with friends and/or family. I find this quite sad, especially knowing how much fun we had as children interacting with each other, and observing each other as we rowed over such meaningless but then important issues.

I now see my own nephews spending hours on their own in front of a computer playing games without any physical human interaction, whilst their parents get on with other things. I guess one advantage is that if you are an only child you dont miss out on not playing games just because you had no-one else to play it with you. The Traditional games such as monopoly can now be played on a computer and the Computer can act as your opponent. You can even set what level of difficulty you want to play at.

The disadvantage to this, in my opinion is that the family getting together and interacting with each other seems to be a thing of the past.

Are Traditional Family Games a thing of the past? is a post from: Techno And Science News | gzsmsj888.com

Undelete Wizard is the ultimate answer! Undelete Wizard by http://wizardrecovery.com recovers erased files, pictures and documents.

Wait a second. Aren’t pictures and documents just different kinds of files? They definitely are, but here goes the best part: Undelete Wizard recognizes your values and priorities, and implements a set of special algorithms to locate the deleted Office documents, digital pictures and ZIP and RAR archives on the surface of your hard disk even if all traces of them are gone long ago!

Restore deleted files and recover deleted Word documents, Excel spreadsheets, PowerPoint presentations, email messages, ZIP and RAR archives, digital pictures and all other types of files with Undelete Wizard! Empty Recycle Bin or no Recycle Bin are not an issue for Undelete Wizard to recover deleted files. The deleted file recovery wizard thoroughly investigates the file system in order to locate the recently deleted files, and scans the entire surface of a disk that contains the deleted files. The unique pattern-matching technology identifies the beginning and end of documents, images and archives by performing the same type of signature analysis as implemented in anti-virus products.

The pattern-matching technology for file recovery can often recover files, pictures, archives and documents that were erased ages ago. But what would you do if the recovered file is corrupted? The deleted files on a hard disk are essentially free space that can be claimed by any program to write a new file over it. Quite often only a few blocks of original data are overwritten, and the rest remains intact on the disk. You wouldn’t be able to view a picture with a missing block or two. Microsoft Word would not open a corrupted document. But even then you are not left without options! Undelete Wizard recovers corrupted documents and digital pictures so that you can still open them with no problem.

Undelete Wizard implements a number of advanced file recovery algorithms, yet using them is extremely simple. What you get is a straightforward step-by-step file recovery wizard that guides you through the file recovery process by asking simple questions like “What disk were your files on?” or “Do you remember the exact location of the deleted file?”

By integrating sophisticated technology with ease of use, Undelete Wizard is a sure bet on the crowded deleted file recovery market. To convince you to try this product, rest assured that it stands to its promises: thanks to the built-in live preview feature, Undelete Wizard displays you the contents of the deleted document, archive or digital image before you pay for a license. If you can see a preview, you’ll be able to recover that file for sure! Don’t wait! Get your evaluation copy for absolutely free from http://wizardrecovery.com/

Emergency File Recovery with Undelete Wizard is a post from: Techno And Science News | gzsmsj888.com

When it comes to RIP, “debug ip rip” is the primary debug to use. This debug will show you the contents of the routing update packets, and is vital in diagnosing RIP version mismatches and routing update authentication issues.

You know how to use the variance command to configure unequal-cost load-sharing with IGRP, but IGRP has no topology table that will give you the feasible successor metrics you need. With IGRP, you need to use the “debug ip igrp transactions” command to get these vital metrics.

Several factors are considered by OSPF-enabled routers when it comes to forming adjacencies, including hello and dead timer settings. If an adjacency doesn’t form when you think it should, run “debug ip ospf adj”. The reason the adjacency isn’t forming is usually seen quickly with this command’s output.

Let’s not ignore Layer Two! If frame relay mappings are not forming according to your configuration, run “debug frame lmi”. This debug will allow you to quickly diagnose and correct any LMI mismatches.

When it comes to PPP, it can be very frustrating to try to spot a problem with a password or username. Instead of staring at the configuration for 10 minutes, run “debug ppp negotiation” and send a ping over the link. This command will help you spot the router with the misconfigured username or password, not to mention saving you a lot of time!

Effectively using debugs during your CCNA and CCNP exam study will help you truly understand what’s going on “behind the command” – and it will really come in handy on that day when your production network just isn’t doing what you (think) you told it to do!

Cisco CCNA / CCNP Exam Tutorial: Five Debugs You Must Know is a post from: Techno And Science News | gzsmsj888.com

Placing an international call could be a very wallet-pinching endeavor. But this should not always be the case. There are numerous ways to make a long distance call, especially if the destination of your call is the Pearl of the Orient, the Philippines.

Here is a rundown of suggestions on how to make that international call to the Philippines without shelling out much of your hard-earned dollars.

1. Be careful when buying call cards.

Several prepaid phone cards have hidden charges. There could be a connection fee that could be almost tantamount to getting ripped off especially when the card buyer makes a call and either the call is routed to a voice mailbox or to an answering machine. Connection fee deduction is automatically done even when the caller did not say anything yet.

Other phone card hidden charges include service fee, maintenance fee, access number and long talking fee. The expiration date should also be checked.

2. Know what type of phone will receive your call.

It won’t be advisable to make a long distance call to any mobile device. This is because most of overseas carriers implement the “calling party pays” system. The tariff rate of an international wireless phone could be a lot higher compared to a call made to a land-line in the same country.

3. Say no to a telephone operator.

When you choose to be assisted by a telephone operator when placing an international call, you choose to pay considerably more. Whenever possible opt to use a dial-around service or dial direct.

4. Sign up to a prepaid long distance plan.

Various carriers offer this kind of service to those who frequently place long distance calls. Opt for those with flexible programs. These plans work like phone cards but do not have fees and charges associated with prepaid phone cards. They usually have very low domestic and international rates 24/7 and call quality is usually excellent. One more thing about these prepaid plans is the convenience of being able to use them when placing calls from any telephones be it cell phones or public phones.

5. Calling during non-business days or off-peak time will help you save.

Make the most out of these privileges by checking on what your carrier offers. Just make sure that it won’t be too much of an inconvenience to the recipient of your call.

6. Bad connections should be noted.

Bad connections happen and the Philippines is not an exception to this nuisance. When this happens, take note of the time and the number you called. Prepaid calling cards rarely gives you credit for bad connections. But if you made an international call using a standard long distance carrier, or prepaid long distance plans, better check if you could be given credit for that call. They always do.

It would help if you print this info to be always reminded of the Do’s and Don’t's when it comes to making an international call.

With these simple tips, you don’t have to worry when your phone bill arrives.

Finally, here’s the step-by-step process in calling the Philippines.

a. Dial 011, which is the international code

b. Then, key in the Philippines’ country code, which is 63.

c. Now, dial the city area code where your your wife and kids are.

Here are the major cities in the Philippines with their respective city area codes:

Angeles Luzon – 455

Bacolod – 34

Baguio – 74

Cebu – 32

Clarkfield, Pampanga – 45

Dagupan, Pangasinan – 75

Davao – 82

Iloilo – 33

Laguna Province – 49562

Lucena, Luzon – 42

Makati, Luzon – 2

Manila – 2

Ozamiz City – 88

San Fernando, Pampanga – 45

San Fernando, La Union – 72

San Pablo – 49

Subic, Zambales – 47

Tarlac – 452

Tarlac Province – 45

Zamboanga – 62

d. Finally, dial the remaining digits.

Also, don’t forget to greet your Filipino friend using her native lingo. “Kumusta”, pronounced as “cooh-moose-TAH” surely will never fail to make her smile.

Call Philippines as Clear as the Pearl of the Orient Seas is a post from: Techno And Science News | gzsmsj888.com

Yahoo and Hotmail provide this feature in order to keep your private email address strictly for your friends and family members and only. The secondary address, you can use for your subscriptions and other purposes. If your secondary address is abused from spammers and your inbox is filled with spam messages, then you can delete it and create another secondary email address.

Use the Spam arrest service.

When you signup for Spam Arrest, you will receive a spamarrest.com email address. You can also protect your existing email accounts by forwarding them to your Spam Arrest email address, or by having Spam Arrest periodically poll them. In that way over 90% of your spam messages will be filtered.

Use your e-mails filters.

Almost all email applications have this feature. You can create filters blocking spam words like make money, opportunities, Viagra, e.t.c .Doing that, you will block many of your spam messages but not all of them.

NEVER post your email.

Dont post your email on forums, websites, message boards, guest books and other online places. You should also avoid posting your contact email address on your website. Spammers use software robots and extract email addresses from thousands of websites. If you want to display your email at your website change it to jpeg photo with Photoshop or other image design software.

The use of email blocking tools.

Yahoo for instance has this excellent tool which can block up to 500 email addresses (the Free option, the paid one provide more) and this amount of spam emails will never reach your mailbox. Other web mail services provide similar features too.

The preinstalled filter in your email application.

If you use outlook express you can click message (from windows 98 versions and later) and then click Block sender. Just doing that you will block many of your unsolicited emails.

Do Not respond to spam at all costs.

When you receive a spam message which asks you to click a link for whatever reason (fake unsubscribe and other) do not click it. If you do that, the spammers will now instantly that they deal with a real email address.

Do Not Ever open unknown messages with attachments.

This is critical. Most of the times the attachment will be a virus (especially if its exe or zip format) If you open it you will activate the virus it contains and harm your computer. Accept email attachments ONLY from well known resources such as friends, business colleagues e.t.c. You should also have installed an antivirus which scans your emails before they are saved into your hard drive.

Excellent tools and resources to fight spam are these below:

http://www.mailwasher.net

http://www.sunbelt-software.com/products.cfm

8 Easy Ways To Stop Spam. is a post from: Techno And Science News | gzsmsj888.com

This is the possible future of radio frequency identification (RFID), a technology whose application has so far been limited largely to supply-chain management (enabling companies, for example, to keep track of the quantity of a given product they have in stock) but is now being experimented with for passport tracking, among other things. RFID is set to be applied in a whole range of consumer settings. Already being tested in products as innocuous as shampoo, lip balm, razor blades, clothing and cream cheese, RFID-enabled items are promoted by retailers and marketers as the next revolution in customer convenience. Consumer advocates say this is paving the way for a nightmarish future where personal privacy is a quaint throwback.

How RFID works
There are two types of RFID tags: active and passive. When most people talk about RFID, they talk about passive tags, in which a radio frequency is sent from a transmitter to a chip or card which has no power cell per se, but uses the transmitted signal to power itself long enough to respond with a coded identifier. This numeric identifier really carries no information other than a unique number, but keyed against a database that associates that number with other data, the RFID tag’s identifier can evoke all information in the database keyed to that number.

An active tag has its own internal power source and can store as well as send even more detailed information.

The RFID value chain involves three parts: the tags, the readers and the application software that powers these systems. From there, the data generated by the application software can interface with other systems used in an enterprise, or, if they obtain the information or collect it themselves, concievably by governments or more nefarious organizations.

Where its used today
Global companies such as Gillette, Phillips, Procter & Gamble, Wal-Mart and others see huge savings to be made from the use of RFID, and there are numerous pilot projects underway which are indicating savings in supply chains as well as the ability to add value to both product owner, product reseller and customer.

But theyre just pilots, mostly. RFID is a long way from being everywhere, so far. Pharmaceutical tracking has long been held out as one of the flagship applications of RFID in the short term, yet just some 10 medications are expected be tagged using RFID technology on a large scale in the U.S. during 2006, analysts predict. Slow roll-outs are contrasting sharply with the optimism of a year ago, when evidence suggested tripling or even quadrupling of RFID for consumer goods tracking. Why? Uncertainty over pending legislation. There are a complex mixture of federal and new state laws (in particular Florida and California) intended to combat drug theft and counterfeiting that have implications for RFID. The details are still being worked out.

Where its likely to be used tomorrow
Depending which analysts you believe, the market for RFID technology will represent between 1.5 and 30 Billion USD by the year 2010. Analyst firm IDTechEx, which tracks the RFID industry, believes more than 585 billion tags will be delivered by 2016. Among the largest growth sectors, IDTechEx forsees the tagging of food, books, drugs, tires, tickets, secure documents (passports and visas), livestock, baggage and more.

Buses and subways in some parts of the world are being equipped with RFID readers, ready for multi-application e-tickets. These are expected to make things easier for the commuter, and help stem the fraud from the current paper-ticket system. However the biggest problem facing rollouts of RFID for commercial micropayment tracking is apparently not technical, but involves agreeing on the fees charged by the clearing house and how credit from lost and discarded tickets will be divided.

Passport tracking
One of the highest profile uses of RFID will be passport tracking. Since the terrorist attacks of 2001, the U.S. Department of Homeland Security has wanted the world to agree on a standard for machine-readable passports. Countries whose citizens currently do not have visa requirements to enter the United States will have to issue passports that conform to the standard or risk losing their non-visa status.

American and other passports are being developed that include RFID-based chips which allow the storage of considerable amounts of data such as fingerprints and digitized photographs. In the U.S., these passports are due to start being issued in October of 2006. Early in the development of these passports there were gaping security holes, such as the capability of being read by any reader, not just the ones at passport control (the upshot of this was that travelers carrying around RFID passports would have been openly broadcasting their identity, making it easy for wrongdoers to easily and surreptitiously pick Americans or nationals of other participating countries out of a crowd.)

Those security blunders were initially corrected by adding metal shielding to the passport cover to minimize its readability when closed, dialing back the range of the electronics and adding a special electronic protocol called Basic Access Control (or BAC). This scheme required the passport to be opened and scanned before its data could have been properly interpreted by an RFID receiver. Unfortunately, in early February 2006, Dutch security experts managed to listen in on the communications between a prototype BAC-protected passport and a receiver and cracked the protocol. Which means the international authority developing this new global passport standard may need to go back to the drawing board as of this writing, because bad guys could clearly stand in line at passport control and capture passport information. Details of the Dutch hack here.

Implications for privacy seekers
RFID has clear implications for those who are worried about their privacy and safety. Some of them are obvious, and some of them are not.

- Can be read without your knowledge Since the tags can be read without being swiped or obviously scanned (as is the case with magnetic strips or barcodes), anyone with an RFID tag reader can read the tags embedded in your clothes and other consumer products without your knowledge. For example, you could be scanned before you enter the store, just to see what you are carrying. You might then be approached by a clerk who knows what you have in your backpack or purse, and can suggest accessories or other items.
- Can be read a greater distances with a high-gain antenna For various technical reasons, RFID reader/tag systems are designed so that distance between the tag and the reader is kept to a minimum. However, a high-gain antenna can actually read tags from much further away, leading to privacy problems. Governments or others could punch through privacy screens and keep tabs on people.
- Difficult to remove RFID tags are hard for consumers to remove; some are very small (less than a half-millimeter square, and as thin as a sheet of paper) – others may be hidden or embedded inside a product where consumers cannot see them. New technologies allow RFID tags to be printed right on a product and may not be removable at all
- Disruptions if maliciously jammed RF signals can be jammed, which could complicate everyday life if RFID tags became essential. Imagine a central bus or train station, maybe an airport, where suddenly everyone could neither be ID’d or access their cash accounts. A single hour of jamming during morning rush over a large area could cost a large city untold millions of dollars in delayed commerce and transport. It would be worse than a mass-transit strike, and easier to repeat.
- Could be linked to a credit card number The Universal Product Code (UPC) implemented with barcodes allows each product sold in a store to have a unique number that identifies that product. Work is proceeding on a global system of product identification that would allow each individual item to have its own number. When the item is scanned for purchase and is paid for, the RFID tag number for a particular item can be associated with the credit card number it was purchased with.
- Potential for counterfeit If an RFID tag is being used to authenticate someone, anyone with access to an RFID reader can easily capture and fake someone elses unique numeric identifier, and therefore, in essence, their electronic ‘signature’. If an RFID-tagged smartcard is used for shopping, for instance, anyone who intercepted and reverse-engineered your number, and programmed another card with it, could make charges on your account.
- Marking for crime Even after you leave a store, any RFID devices in things you buy are still active. A thief could walk past you in the mall and know exactly what you have in your bags, marking you as a potential victim. Someone could even circle your house with an RFID scanner and pull up data on what you have in your house before robbing it. As a result, there are now discussions of zombie RFID tags that expire upon leaving the store and reanimate if the product is ever returned to the store and returned to the supply chain.
- Marking for violence Military hardware and even clothing are beginning to make use of RFID tags to help track these items through supply chains. RFID is being used today by the U.S. military to track materials in Iraq and Afghanistan. Some analysts are concerned about particular items being associated with high-level officers that could trigger roadside bombs via an RFID scan of cars going by. (Thankfully, RFID tags retained close to the body can rarely be scanned. For instance, UHF tags, the kind being most widely deployed, are virtually unreadable near the body because of its high water content.)
Some have suggested that mobile phones are already as great a threat to privacy as RFID. In the case of mobile phones, information about your whereabouts and calling patterns is regularly available to your service provider, a centralized and highly regulated source of information gathering. An adversary with special-purpose equipment would also have the capability of tracking your mobile phone, but this would require significant expertise and investment. See our separate article “Cell phone hazards”.

What makes RFID a more significant privacy threat than mobile phones is the fact that readers will be readily available and ubiquitously deployed. In other words, RFID readers will soon be an accepted element of everyday life, while eavesdropping equipment for mobile phones is unlikely to be.

How to thwart RFID technology
There are a few approaches you can take to thwart RFID tags … but before you take proactive steps, note that sometimes the very absence of a tag or its signal in places its expected could arouse suspicion. For instance, if youre carrying what is expected to be an RFID-tagged passport and your tag isnt working, say, you may invite unwanted scrutiny. Be careful which tags you choose to disrupt.

The simplest, most permanent approach to disable RFID tags is to destroy them. If you can detect them and wish to permanently render them useless, remove them and smash the small chip component with a hammer. If youre not sure whether a product you own contains a tag, consider putting it in a microwave to destroy the tag if the object is otherwise safe to be microwaved. Be careful with some plastics. Note there have been reports of RFID materials catching fire in microwaves.

If removing the tag is not practical, there are four general ways to disrupt RFID tag detection.
- Blocking Construct a conductive foil box (even tin foil is good) around the tag. If you are concerned about RFID emissions from work badges, school IDs, new generation drivers licenses, credit cards, and even cash in the future containing RFID tags, buy or make an RFID-proof wallet. RFID wallet project details are easy to find on the Internet.
- Jamming Since RFID systems make use of the electromagnetic spectrum like wireless networks or cellphones, they are relatively easy to jam using a strong radio signal at the same frequency the tag operates. Although this would only be an inconvenience for consumers in stores (longer waits at the checkout), it could be disastrous in other environments where RFID is increasingly being used, like hospitals, or in military combat situations. Such jamming devices, however, would in most cases violate government regulations on radio emissions. A group of researchers in Amsterdam have theorized that a personal RFID jammer is possible (their paper is linked to from the version of this article that lives at our web site, www.powerprivacy.com) but the device seems only theoretical at this time.
- Repeated interrogation Active RFID tags that use a battery to increase the range of the system can be repeatedly interrogated to wear the battery down, disrupting the system.
- Popping Generating a very strong pulse of radiation at the right frequency can cause RFID tags to resonate and break.

What strategy you should pursue depends on what RFID privacy threats you are trying to thwart and your technical expertise.

RFID, its implications and how to defeat is a post from: Techno And Science News | gzsmsj888.com

Canon has been keeping mum over the longest-lasting-photo-prints debate for sometime now. Possible explanations include the newly released Pixma iP4200, with built-in duplex printing; individual cartridges; two paper-input trays; easy operation; inexpensive; great-looking photos; and 100-year print life. Epson, the leading contender for lasting prints, now has competition. The key ingredient to long-lasting prints is Canons ChromaLife 100 ink set, included in the Pixma iP4200. The company claims that when used with their branded photo papers, photos printed using ChromaLife 100 inks will last up to 100 years when stored properly.

Compared with the iP4000, the iP4200 is less expensive, faster for business applications, and offers more longevity for photos. However, photos take a little longer to print and earn a lower quality rating than the iP4000, but the overall balance of features makes for an impressive package.

The Pixma iP4200 uses Canon’s Full-Photolithography Inkjet Nozzle Engineering (FINE) print head, which releases droplets as small as 1pl for each of the 1,536-nozzle cyan, magenta, yellow, and black print heads (plus 320 nozzles for pigment-ink black text), providing an effective color resolution of 9,600×2,400dpi. Two separate black ink cartridges for both a pigment-based black and a dye-based black, significantly improve photo output.

Apart from five inks, the photo printer offers the advantage of two paper inputs: a standard paper feed tray in the rear and a second paper tray that slides into the front bottom. You could now easily load standard paper in one tray and photo paper in the other, and switch back and forth between standard printing and photos without having to swap out paper every time. One eco-friendly feature of this printer includes the ability to automatically print on both sides of a sheet of paper. However, it might take you three times as long to print a 10-page Microsoft Word document in this mode compared with printing one-sided sheets.

The iP4200′s driver can automatically adjust colour balance, you can access sliders that modify the intensity of the individual inks; you can also switch from sRGB to Windows Image Color Management (ICM). Grayscale printing simply requires the tick of a check box, and a simplistic Print Advisor wizard can quiz you on the type of document you’re printing and recommend an appropriate paper.

Other than duplexing, the Page Setup options include size and orientation, number of copies, border/borderless printing, and addition of a background image or a watermark. An Effects tab provides settings for optimizing the image; reducing noise; boosting contrast; or adding effects such as sepia, pink, and other colours. You can save your settings as a profile for reuse in another printing session.

The Maintenance tab offers functions such as nozzle checks and cleaning, printhead alignment, and other tasks, including a bottom-plate-cleaning function that uses a folded letter-size sheet to tidy up before duplex printing.

Graphics quality, rated at the high end of good, is suitable for schoolwork or internal business use, and is marginally good enough for an important client or customer you might want to impress. However, some visible problems with photos include a slight pink tint in monochrome photos and a tendency for some colours to be overly punchy. It was also a little troublesome to get a neutral gray out of the printer as prints tended toward either green or blue depending on the driver settings used.

Refilling the Pixma iP4200 Cartridges

The new Canon PGI-5 and CLI-8 cartridges have an onboard chip to measure the ink level of each individual cartridge. The five individual ink cartridges in the Pixma iP4200 feature bright red LEDs that light up when properly installed. The cartridge lights also start blinking when ink is running low, and the blinking gets faster as the tanks get emptier. The numbers of the Pixma iP4200 cartridges are:

PGI-5BK – Black pigment ink
CLI-8BK – Black dye based ink
CLI-8C – Cyan dye based ink
CLI-8M – Magenta dye based ink
CLI-8Y – Yellow dye based ink
These cartridges are also suitable for Pixma iP5200, iP5200r printers, MP500, MP800 and MP950 MFPs.
Needless to say, many people would like to know if these cartridges can be refilled, or if compatible cartridges are available. As of now (February 2006), compatibles are not available for the PGI5 or CLI8 inks, probably for 2 reasons:
The ink formulations are quite complex, and refill ink manufacturers need to ensure their inks will perform equivalent to the original Canon inks.
Canon has patented the on-board chip; consequently, compatible manufacturers have to be very careful not to infringe that patent, which could leave them open to litigation. Canon recently won a lawsuit against a company in Japan, which was involved in the business of refilling and resale of Canon cartridges. Naturally, this will set back any plans for compatible cartridges.
However, there are refill inks available on the market and refilling instructions are available from ink vendors. Canon has very cleverly adapted their printers; if you refill the cartridges and re-insert them into the machine, a warning message will appear on your computer along the lines of:
You are using refill ink in your cartridges. If you continue, your printer warranty will be void. You are prompted to press OK, and after doing so, the low ink warning facility on the printer no longer works. If this is the case, you must be very careful never to let the inks run dry, as this will burn your print head.

Canon Pixma inside out the iP4200 Photo Printer is a post from: Techno And Science News | gzsmsj888.com