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A Featured personal computer Article
All Computer Users! Alert!
Eyestrain is another ergonomic problem frequently associated with the use of computers and Video Display Terminals (VDTs). Keep in mind that the solutions presented here are only recommendations. If following these recommendations seems to make matters worse, try something else! If you aren't experiencing headaches or eyestrain while you work at the computer, don't worry about making changes; obviously your setup works for you.
When people concentrate, they blink less often. Sometimes they concentrate so hard that they blink only once per minute, instead of the normal once every five seconds. This, too, will cause the eyes to dry out and become irritated. The Solution? Take micro-breaks! Frequently look up from your monitor and focus on an object several feet away. Make a conscious effort to blink. (see Eye Exercise)
Computer screen glare, inadequate room lighting and poor ergonomics are all known to contribute to eyestrain. The convergence of our eyes however is the main factor why we have computer-induced eyestrain. Every once in a while, change focus by glancing across the room or look out the window and focus on objects at least 20 feet away. Then, lightly cup your eyes with your palms, and relax for 60 seconds. Or, look away from the screen, and roll your eyes up and down, around and side to side. Eye Exams If you experience chronic eye problems, have your eyes examined by an eye care professional. If you work on a VDT, be sure to tell the doctor. Anyone who works regularly on VDTs should have annual eye exams, and people over age 40 may need more frequent checkups.
Invest in a special prismatic lens to reduce convergence demand on the eyes while we look at a near object such as a computer. The lenses are tinted to cut down glare and UV radiation, and they are non-magnifying. Most importantly, the prism feature of the lens will gently re-position our eyes to a more natural and comfortable position, relieving demand on eye muscles. This indirectly relaxes the focusing effort, providing a reduction in tension and enhancement of clearer vision.
About the Author
For complete information on Good Eyesight and Eye Exercise, visit EyeExercise.smartreviewguide.com
Ten Simple Ways To Beat Computer Eyestrain
If you work in an office, do your eyes hurt by the end of the working day? You aren't alone: about 88% of all people who work with computers experience a type of eyestrain known as Computer Vision Syndrome (CVS). After all, a computer screen isn't exactly the most natural thing to look at. Perhaps a couple of thousands of years of evolution would solve the problem but I am sure you aren't prepared to wait this long. Fortunately there are a few simple things you can do to minimize computer eyestrain.
If you work in an office, do your eyes hurt by the end of the working day? You aren't alone: about 88% of all people who work with computers experience a type of eyestrain known as Computer Vision Syndrome (CVS). After all, a computer screen isn't exactly the most natural thing to look at. Perhaps a couple of thousands of years of evolution would solve the problem but I am sure you aren't prepared to wait this long. Fortunately there are a few simple things you can do to minimize computer eyestrain.
1. From time to time look into the distance, to readjust the focus of your eyes
The human eye has trouble staying focused on computer images and text. Our eyes involuntary drift away, so we tend to force them to remain focused on the screen.
This flexing of the eyes' focusing muscles, all day long, is a real struggle for your eyes. So take your gaze away from the screen as often as possible. The key, here, is not to take long breaks but to take frequent breaks. Every few minutes look away from the screen and focus on a far away object - out the window, for example.
2. If you wear contact lenses, go for the best quality not the lowest price
Because computer users blink less often, their eyes tend to dry out, and some contact lenses contribute to this dryness even more. Ask your doctor to prescribe contact lenses that don't dry your eyes.
Acuvue Advance with Hydroclear or Focus Night and Day might work well for you. See suggestions on soft contact lenses for computer users.
If money is an issue, find out how you can get discount contact lenses online. This usually turns out to be 50% - or more - cheaper than buying them from the doctor's office.
3. Close your eyes for a few seconds
Because looking at the computer is a constant struggle for the eyes, people concentrate and tend to blink much less often than normal. This causes dryness of the eyes.
It is difficult to force yourself to blink more often, but you can close your eyes every time you are waiting for your machine to do something.
4. Take a short break every hour
It is recommended that you take 10 minutes away from the computer for every 50 minutes spent at it. Move around the room, stretch your back and do a few simple exercises.
If you can teach yourself the habit of closing your eyes often, looking away to readjust your focus and taking short but frequent breaks, your eyes and your head will feel much better even after long hours of work.
5. Make page designs "eye friendly"
If you have to do a lot of online research, you probably have seen pages that look like they were designed to inconvenience the reader as much as possible. Don't you love those pages with tiny, white type on a black background?
Most Web browsers let you change the font size of a page; in Internet Explorer it is done by opening the View menu, and then choosing Text Size. And here is a trick for dealing with pages with dark or busy backgrounds: drag your mouse across the text to select it - it inverts the colors, and you will see dark text on a light background, just as nature intended.
6. Whenever possible print pages for reading; don't read from the screen
Reading printed material is much less stressful, for your eyes, than reading from the screen. And you will be more productive too - it is a proven fact that people read printed text 25% faster than they read text from the computer screen.
7. Adjust the light
When working at the computer you don't need a very bright light. Direct sunlight and lighting in most offices are way to bright. Put the blinds down on a sunny day. It is best to turn your monitor so the window is on its side, not in front or behind it. Soft light of a desk lamp from the side is also an option. If the light in the office is too bright, you can wear tinted computer glasses.
8. Adjust the brightness of your monitor
The color white, on your computer screen, shouldn't shine like a light source. You can adjust the brightness of your monitor to a little bit below default. However, remember to keep the contrast high, otherwise it will be even more difficult for your eyes to stay focused.
9. Get your eye examined every 12 months
If you need vision correction it is important that your eyeglasses or contact lenses fit your needs. Wearing corrective eyewear that isn't up-to-date increases the stress on your eyes.
10. Ask your eye doctor about special computer glasses
These are usually multifocal glasses that help you to focus better on computer text. They can also be tinted, which helps if the lights in your office are too bright.
Follow these simple rules and you will notice that, by the end of the day, you won't feel so exhausted and your eyes won't hurt nearly as much, if at all.
About the Author: Tanya Turner is a contact lens expert and a founder of 1-contact-lenses-consumer-guide.com/, where you can find unbiased information about eye health and all types of contact lenses with reviews and pictures
Computer Kidnappers Target Your Files
Computer users have been inundated with warnings about viruses for years. Those dastardly, scheming bits of code that covertly enter a PC, and then perform the most nefarious of tasks ? up to and including infecting the computers of all the people in the resident address book. Virus infestations of computers have been responsible for shutting down entire companies, vast networks, government offices, and even the Internet.
After years of being cautioned regarding computer virus infestations, other types of unsavory and undesirable contaminants started to appear. As more and more threats arrived and received names, categories of threats had to be created. Today, the lexicon of nasty computer denizens is too vast for even the Geekiest of Geeks to fully know. To simplify the process of communication, a new general terms was born: 'malware.' Logically enough, it simply stands for 'malicious software.'
When the term malware was coined, it was to cover everything not previously named, but today, it is rapidly becoming an acceptable moniker for any software or program or macro or bho (browser helper object) that performs harmful processes to the host computer. This new nomenclature has made it much easier to communicate, but it has also left something of a hole in the general public's knowledge of protecting their computer system. For example, if anti-virus software is installed on a computer, is it safe from malware? The answer, by the way, is a resounding 'no.'
There are entirely too many types of malware, with way too many destructive tasks at their cores to mention in one article ? indeed, in one book. That's another way of saying that it is impossible to keep up with all the new malware releases. Fortunately for us mere mortals, the 'anti-hackers' stand steadfast at the gates of our PCs, ever vigilant for the newest attacks, and the ways to combat them. The 'anti-hackers,' by the way are those geeks who have not turned to the darkside. Without them, we'd be in the computer dark ages.
Malware comes and goes. It appears, the geeks or software protection companies find a 'fix,' and that's that. One piece of particularly irritating, as well as harmful, malware appeared a while back. One of the more notorious pieces of this malicious code was dubbed "Cryzip." The name actually has roots. This type of malicious software locates a group of files on your computer, zips them with a password and then insists on a ransom payment for the safe return of your files ? that's when you 'cry.' The term encompassing all of these types of software is 'ransomware.' Hardly as creative
The first generations of ransomware were relatively easy for authorities to stop. The person whose files were kidnapped was instructed to deposit money into an account ? anywhere from $50-300.00.
The newest generation of ransomware is trickier, and harder to stop. The computer is infected by a bad email, email attachment, or by visiting a website which downloads the unsavory code. The files being held will only be released when a certain dollar figure of purchases are made at a selected website, and then proof of those purchases is forwarded as instructed. I told you it was irritating. But when the vast majority of the worthwhile and/or valuable files from your computer are at stake, well ? that's the point.
The names of a couple of these new ransomware gems are 'Archiveus' and 'Troj/Ransom-A.' Both It infect your system in the traditional manners listed above. Here are a few basic rules for staying safer on the Internet:
? Don't open mail from unfamiliar address or names.
? Don't open attachments unless you're sure! (Your friend's system might be infected, and his computer is automatically sending you an email to infect your system too.)
? Set your email reader to read all mail in PLAIN TEXT. (This is GREAT security!)
? Keep your anti-virus software up-to-date and running ? including email scanning.
HELP IS POSSIBLE
If you do get infected with a chunk of Ransomware, try visiting: del.icio.us/ and search on "ransomware." It will give you the latest on the problems, and their fixes.
You might also consider installing a very nice piece of freeware called bhodemon. You can download a copy here: majorgeeks.com/download3550.html. It's free, and it's amazingly effective. Install it, which takes about a minute, and then it will scan your system for browser helper objects and give you a report of the ones you have ? and whether you should remove them. If you download this and like it, consider sending a dollar or two to the Geeks who developed it. We helpless computer users would be lost without their tireless and helpful efforts.
In closing, I want to emphasize once again what an effective security step it is to set your email reader to read all mail in PLAIN TEXT. This prevents code from running when you open an email. On the downside, you don't get to see graphics or photos, or colors, or type faces. Small price to pay so that I don't end up with a kidnapping note staring back at me from the screen.
About the Author:
Eric Scribener is a 30-year veteran freelance writer and photographer currently on assignment for dotcomtucson.com/ - putting Tucson Arizona in the palm of your hand.
Do you know who is snooping around your computer right now?
How secure is your computer? Most of us have virus protection
and probably feel pretty safe. But how many know that there
can be many individuals out there who may be trying to snoop
(or actually snooping) around your hard disk all day long?
I would venture that there are not many sitting at their
computer right now who have even thought about it!
High speed access to the Internet, i.e. DSL, cable and a
couple of others have opened the doors to our work areas.
I had even recorded attacks on my computer when I was using
a local dial up service. The high speed access capability
is great, I know that from personal experience. But it does
open you up to extra risks since your Internet connection
is probably open all day, even when you are not using it.
Intrusions on the Internet are common because hackers do
frequent scans looking for systems they can break into. A
typical hacker may scan thousands. He or she isn't targeting
you personally. In the hour preceding the writing of this article
I had three attacks on my computer through my cable hookup.
Two were hackers probing to see if they could get in and the
other was a hacker checking to see if I had a specific Trojan
program that might have compromised my system so that they
could get in. This is a regular daily occurrence. Luckily my
system has a software (firewall) program that detects and stops
any attacks. It also logs in the attacks so that I can see what
they were. The program is called Black Ice Defender,
networkice.com and cost me about $40. It was
well worth the price. There are a number of programs out there
and one that seems to be generally recommended along with
Black Ice Defender is ZoneAlarm zonelabs.com
which happens to be free (free for personal and non-profit use).
A while back I had read several articles in PC Magazine about
these risks and that was what made me get a copy of Black
Ice. By the way it is easy to install and use. I don't know about
ZoneAlarm but from my readings it appears it is also fairly
simple. One of the ezines I subscribe to recently had a short
article about a site called "Shields UP!" where you could go
to check your computer security for free. If you are interested
go to: https://grc.com/x/ne.dll?bh0bkyd2
These tests are for Windows systems. There will be two
buttons, "Test My Shields" and Probe My Ports". These tests
take a couple of minutes each and they will give you a full report.
When I was finished, I felt pretty good for the moment since
they couldn't get into my machine. In fact they evaluated it as
"appearing that my computer didn't even exist".
You can sit there and say that you are only a little guy or gal,
who would even try? Well that may be so, but on the other hand,
do you know exactly what you have saved on your computer -
credit card numbers, account numbers, personal information...?
You would be amazed at the number of files that are saved on
your machine by windows and other programs that you aren't
even aware of.
I have had to change credit card accounts twice in the last year
due to some large well known companies who's systems were
attacked and credit card files were compromised. So it can
happen, even to the big guys. The software is out there to help
you, it can be free or relatively inexpensive. Why not feel a little
more secure?
Joe Reinbold, Publisher of Home Income Quarterly
E-dition, a free weekly on line marketing newsletter. To
subscribe just mailto:subscribe@homebizlink.com Or visit
The Entrepreneur's Home Business Link where you will find
the solutions to your home business needs at:
homebizlink.com
personal computer in the news
Computer mouse may go extinct (PhysOrg)
Wed, 19 Nov 2008 12:32:55 GMT
The computer mouse may someday become an endangered species. Instead of rolling a mouse around to move a cursor around on the screen, more and more users will gesture with their fingers on touch screens and multi-touch trackpads, analysts say.
Access denied to the server.
IP address: 125.27.185.84
User agent: Mozilla/3.0 (compatible; Indy Library)
Nvidia Announces "personal Supercomputer" (PC World)
Tue, 18 Nov 2008 17:19:36 GMT
Nvidia and partners are offering new Personal Supercomputers for under $10,000.
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