About Technology

Used Large Format Scanners

By Damian Sofsian

For many who want to install a large format scanner, a used one will do as satisfactorily as a brand new one and at a much lower cost. Consider an engineering firm that does all its design in CAD. It might still want to convert some of the older drawings, or those obtained from other sources, to digital form. A used scanner obtained from an authorized dealer with a warranty and maintenance contract would fulfill this need much more economically than a new scanner, since the application does not require the latest models. But an art museum, library or a reprographic center may opt for a new machine with the best resolution and image quality.

When going for a pre-owned scanner, care must be taken to ensure that the machine is compatible with computers and operating systems that are used today. For example, some of the old Contex DOS-based scanners use a proprietary interface card that is no longer available. Some of the old models will need frequent repairs, and the parts for it will no longer be available. So it is always good to opt for scanners with a maintenance contract also included in the buying price. If the scanner is for temporary use, then the re-sale value should also be considered when making a choice.

The major attraction in buying a used scanner is the lower cost involved; but this should not be at the expense of quality. Buying from reliable vendors who are authorized by the manufacturers themselves ensures quality. Contex, Vidar, Graphtec and ACTion Imaging are some manufacturers who facilitate the re-sale of their used scanners. Re-sale involves repairing the old scanner and making required modifications to suit the present need. Standard accessories are also made available. When buying used scanners, it is always advisable to buy it from a dealer near you, since that will make the repair and maintenance easy, whenever necessary.

About the author:
Large Format Scanners provides detailed information on Large Format Scanners, Large Format Color Scanners, Large Format Flatbed Scanners, Used Large Format Scanners and more. Large Format Scanners is affliated with Home Theater Projector Screens.

source:www.ezinefinder.com

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Tips for IM safety

From Mary Landesman,

Instant Messenger worms are becoming increasingly more sophisticated - and more prevalent. To avoid infection, treat IM as suspiciously as you should be treating email. These tips will help you avoid infection:

Don't be click-happy
Don't click any link received in IM unless you've first confirmed that the sender intended it. This includes links contained in 'away' messages - these 'away' messages are often frequent targets of IM worms.

Beware IMs bearing attachments
Don't open any attachment received unexpectedly - verify that the sender intended it. Make sure you enable file extension viewing so you're not fooled by the infamous double-extension ruse. Before opening any attachment, scan it first using up-to-date antivirus software. (The Kaspersky online scanner is superb for quickly checking single files less than 1MB).

More is *not* merrier
Keep the number of IM clients to a minimum. IM worms target specific clients, though multiple clients might be targeted. For example, the 2002 FloodNet IM worm sent its infectious message to both AIM and MSN Instant Messenger users. Thus, the more IM clients used or supported, the more likely you are to be victimized by an IM worm.

What to do if infection strikes
If you do get hit by an IM worm, remember that all of your contacts are now vulnerable. To avoid sending the infection to others, disconnect from the Internet until you are able to completely remove the infection. If you need Internet access to obtain antivirus software or updates, ask a friend to use their computer and burn the files to CD. If this is not an option, uninstall the IM client until after you've properly cleaned the infection. Of course, always keeping your antivirus software up-to-date will avoid this last minute scramble for protection.

source:about.com

No Comment | Posted in » attachments, infection, instant Messenger, scanner, worm