Showing posts with label tips and tricks. Show all posts
Showing posts with label tips and tricks. Show all posts

Saturday, January 03, 2009

Guidelines to prevent computer-related stress injuries

Many guidelines have been published about computer-related stress injuries. This page summarizes some of my favorite suggestions.

  1. Stretch while seated at your desk in order to prevent some injuries.
  2. The target field (the size and point on the screen that you look at) should be set so that it can be seen conveniently without shifting or tilting your your head. You should be able to see the top of the target field. An adjustable monitor stand may help. Your head should face in a straight, neutral position - not facing either upward or downward.
  3. Exercise while at your desk. Drop your head gently forward. Slowly rotate it clockwise and counterclockwise. Blink frequently to moisten your eyes so that they feel less tired. You may need to use use eye drops to moisten them still more if you stare at the screen too long.
  4. Stare at a distant object from time to time. You may want to look out the window at a fixed object and then look at something else nearby, like your phone. Keep shifting your point of vision.
  5. Adjust your chair so that your neck is always straight while facing the screen. Don’t hold the phone between your neck and shoulder. If you use the phone a great deal, buy a telephone headset.
  6. Use your right hand to hold on to the seat of your chair. Move your head forward, and then turn and lean to your left. You will feel a stretch from the neck to the top of the shoulder blade. Keep stretching for fifteen seconds. Reverse - do it with your left hand and lean to the right.
  7. If you feel that your shoulders are beginning to be rounded after an extended period of time in the same position, correct it by sitting up with a straight back.
  8. Slowly move your shoulders up and down. Let your arms hang down next to you, and then rotate your shoulders clockwise and counter-clockwise.
  9. Adjust the height of your keyboard and chair so that your arms and elbows are close to your body, and so that your elbow is at a right angle.
  10. Raise your right arm as if to throw an object. Keep stretching back a bit further. Gradually straighten your arm at the elbow. Your arm will then be behind and next to you. Slowly turn your palm upward. Gradually extend your fingers until you feel your muscles stretching at your forearm and wrist. Do it again, this time with your left arm.
  11. Straighten your back. Your arms should be next to you with your elbows bent at a 90-degree angle. Make fists with both hands. Rotate your elbows forward, but keep your fists in front of your waist. Straighten your elbows. Stretch your arms back behind your body. You’ll feel your forearm and wrist muscles stretching.
  12. Your wrists should remain straight as you type. Adjust your keyboard shelf or seat so that they do not go up or down. You may want to put down your keyboard’s little folding “feet”. You may want to consider a foam wrist pad for support if your arms get tired from too much typing.
  13. Look for a comfortable mouse. There are special mouses (yes, that’s the plural form for a computer mouse) for lefties and righties, and for small or large hands.
  14. Hold both hands in a clapping position. Use the palm of one hand to press back the wrist and fingers of the other hand. After three seconds, rest and then repeat this stretch for your other hand. Do this procedure five times for each hand.
  15. Keep your fingernails short, so that you don’t have to use the pads of your fingers. Your fingers should be relaxed and slightly curved when typing.
  16. While keeping your wrists straight, stretch the fingers of both hands apart as widely as you can for three seconds. Relax. Do it again and again, for a total of five times.
  17. Sit straight. Keep your supplies handy so that you don’t have to stretch for them.
  18. This exercise and the following one may be dangerous for those who suffer from back problems: Touch your shoulders with your fingertips while sitting at the edge of your chair. Gradually twist and stretch right to left.
  19. Lock the fingers of your hands together behind your head. Slowly tilt and stretch your body from side to side.
  20. Your lap and your feet should rest comfortably. They should be parallel to the floor. Either adjust your seat or use a footrest with a nonslip surface. Be sure there is enough room under your desk to stretch your legs.
  21. Take frequent but short walks. Handle small errands in the office yourself, as an excuse to get up and walk around. It’s best to get up every twenty to thirty minutes, and you should never sit in the same position for more than 2 hours. From time to time, take a fast-paced walk around the neighborhood. Unless your neighborhood is even more dangerous than the effects of repetitive stress injuries.

Saturday, October 13, 2007

Linux Transformation v1.1



The Power DeskMod Linux Transformation had an installation in the format RAR, more easy!
In pack it comes:
Tema of the Ubuntu and Debian
Icones and cursors for IconPackager
Fontes _Wallpapers
Yod'm 3D (desktop in cube)

Download

Thursday, September 13, 2007

Meebo now supports file transfer!!

Popular web-based instant messaging service Meebo now supports file transfer, meaning you can share files with your contacts over Meebo IM on the web—whether your contacts are using Meebo or not. You'll need to have registered with Meebo (a free and painless process) in order to send files from their web interface, but anyone can receive files.just click
on this icon


Sunday, September 09, 2007

How To Remove haha.js

Its a javascript and not that really harmful to your PC but a little bit annoying though. Most noticeable effect if your PC are infected with this worm is the tittle bar of your IE change to "haha" word.

Some of the antivirus does detect this worm. Here is the way how to remove it manually..

Step 1
On your mycomputer menu option go to Tools>Folder option
uncheck box "hide protected operating system files"in Tool-Folder options and check "show hidden files".




Step 2
Open Task Manager by pressing ctrl+alt+del. End Process all Wscript.exe that you can found in the Task Manager(some times it can be more than one process)

Step 3
Open mycomputer and search for haha.js files and delete it there should be an autorun.inf file comes with this haha.js just delete it

*this haha.js run when you use double click to open your drive c: ,d: ,e: ..when removing this worm use right click instead to open any drives. Don't forget to look and delete this haha.js in your external hd and thumbdrive

Step 4
Go to Run type msconfig. At the startup tab look for any haha.js @ wscript.exe unchecked and delete the key location in the registry.

finally restart your PC. Good luck on trying!

Should you turn off your PC

Should you turn off the computer or the monitor when it is not in use?

Alternatively, should it be left in Standby mode?

When you turn on electrical equipment it uses a large amount of power, and then it goes down to its “rated consumption” as stated on the label. This is measured in watts or kilowatts. This sudden jump in electricity is know as a spike. You can see it on a digital power meter, but there is a way that it can be observed more easily.

Just switch on your air conditioner, refrigerator, or vacuum cleaner. It’s best if that appliance is plugged into the same circuit for the purpose of this experiment.

Your lights may dim briefly and then resume their former brightness during this “spiking” and it will then go back to its normal level of power.

Another way of looking at this is with a standard incandescent light bulbs. Have you noticed that they seem to be able to stay on forever, but they burn out when you turn them on? That’s also because of that initial spike of electricity.

So, what’s the problem?

Computers have delicate electronics inside of them. The electronics in laptops may be even more delicate. As the computer ages, the components suffer from repeatedly being turned on and off (technicians say that the parts are fried). Over the course of time, the repeated spiking damages some components. It is thus a good idea to reduce the number of times that you spike these delicate parts.

So, computers should be left on, right?

Well, laptops heat up more than desktop computers, so it is not a good idea to leave them on. Laptops do not have the same system of fans that is in desktop computers. Leaving it on will fry the parts in a different way than turning it off and on, but the result will be effectively the same.

OK, so I’ll leave the computer in Standby or Hibernate mode

Those modes are different, as follows:

Standby

  • The machine is powered down so that it uses practically no power.
  • Your data is saved (if you have enough installed memory)

Hibernate

  • The machine is powered off.
  • The data is saved as an “image” on the hard drive. When you turn on the computer, everything is where it was. Unsaved unsaved work is restored, Windows is in its familiar position, and you can continue working.

Lower your electric bill

Hibernation and standby options are available because laptops have limited battery life and desktop computers use a considerable amount of electricity.

The “Energy Star” power consumption rating shows that manufacturers are becoming aware of the environment.

Standby mode is useful when a laptop is moved from one location to another. Batteries last significantly longer between recharges.

Hibernate, on the other hand, is not as useful. It takes nearly as long to power up to your previous state, and you still spike the mainboard during this time. You may want to use it because your Desktop seems to appear the same as the last time it was used.

Standby mode therefore seems to be a better option for extending the life of laptop. This is important, because laptops cost more and they are replaced less frequently. This issue is less important with a desktop computer.

There is still another option: You can have many of the benefits of switching the computer off and having the benefits of Standby mode.

Use the power setting in the Control Panel

Many computer programs “leak” memory. If a computer program uses 15MB when it is started, it may use 55MB two weeks later. This has nothing to do with anything you’ve done, and it is not because the program is working any harder. The programs leak memory because they are written and designed poorly.

What is the solution?

Restart your computer periodically. Better yet - leave it off overnight from time to time so that the parts can cool down to room temperature. I turn off my own computer once a week for Shabbat. I find that to be a reasonable compromise.

During the week, between these rest breaks, use the standby function in order to prolong the lifetime of your investment.