Assignment 2-Part 2

https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B5S5POrJ4r1kMWU3OGRmOGMtZDU4Ni00MWMyLTgwODQtMDQ3ZWY3MWQ3NGEy&hl=en

Assignment 2 - Part 1

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Future CMM111 Assignment Submission

On the next CMM111 assignment, I wish to introduce more on the computer games that are very popular among the youngster nowadays. I will write more on the types of computer games, from the oldest computer games until the newest computer games. Besides, I also wish to investigate more on the reason why the youngster and also the adults like to play computer games and some of them even get addicted. Other than that, I also will search more articles that can help to prevent the addiction, advantages and also disadvantages.

Other than the computer games, I also wish to introduce more on the software that is usefull to all of us.

A Day Made of Glass... Made possible by Corning(Multimedia File)

Computer Vision Syndrome

The Computer Vision Syndrome is a condition with complex number of symptoms relating to eye and posture with prolonged use of computers. CVS is of importance because of growing number of computer users and not knowing the correct way to sit infront of a computer and right way to care for the eye. The other problems associated with these are the low back pain, neck pain, headache, wrist pain etc. The computer screen forms images with pixels rather than the solid images which the eye used to see. The pixel needs extra focus to form an image and thus the effort.

Causes

1) It is caused by the differences in reactions of the eyes and brain while seeing thecharacters on the computer monitor screen. The printed pictures and letters on a newspaper or a magazine are fixed with high contrasts and well defined edges. But the picturesor written pages on the computer screen do not have sharp and well defined edges. Thesepictures are not fixed; they also have brightness at the center and low intensity at theedges.
2) Your eyes do not maintain a focus on the screen and maintain with these images. Instead,they drift out to a point called resting point of accommodation. The eyes strain too muchto regain focus on the screen. This continuous flexing of the eyes and focusing of the eyemuscles create fatigue and the burning, tiresome feeling on the eyes.
3) People who wear the bifocal lenses will have problem in viewing the lower and the higherhalf of the screen. This will make them to view up and down by adjusting their head andneck. This is a painful exercise.
4) When you have the CVS, you will not blink enough. You will tend to open your eyes wide. The lighting of the office and the natural diffused sunlight falling on the screen maycause a glare and reflection on the monitor.

An exercise to guard your eyes

• For every 20 minutes on the computer make a shift to see the objects at a 20 feet distance
  See the objects for 20 seconds
• Just blink 20 times for every 20 minutes of working on the computer.
  
• Take a break once you have stay over an hour in front of your computer for work.

Reference: Healthcare MAgic. (2010). computer vision syndrome. Retrieved from health care magic: http://www.healthcaremagic.com/articles/Computer-Vision-Syndrome/354

How to prevent computer related injuries

The computer is a vital and most important tool in many different occupations at present. However, long periods of working at a computer in an appropriate manner can increase the chances of developing an injury such as muscle and joint pain, overuse injuries of the upper limbs and eyestrain.

Computer related injuries:

Long periods of working at a computer can increase the chance of developing an injury. Muscle and joint pain, overuse injuries of the upper limbs and eyestrain can result from inappropriate computer use. The risks can be reduced or eliminated with proper work space design, improved posture and good working habits

Posture related injuries:

Back and neck pain, headaches, and shoulder and arm pain are common computer-related injuries. Such muscle and joint problems can be caused or made worse by poor workstation design, bad posture and sitting for extended periods of time due to reduction in circulation to the muscles, bones, tendons and ligaments and can result in stiffness and pain.

Prevention of muscle and joint injuries:

• Use an adjustable desk designed for use with computers
• Position the monitor so that it is either at eye level or slightly lower
• Position your keyboard at a height that allows your elbows to rest comfortably at your side
• Forearms should be roughly parallel with the floor and level with your keyboard
• Adjust your chair so that your feet rest flat on the floor
• Use a footstool if your feet do not rest on the floor
• Switch to an ergonomic chair, which helps your spine to naturally hold its curve while sitting
• Use an ergonomic keyboard to offer your hands and wrists a more natural holding position
• Take frequent short breaks and go for a walk or perform stretching exercises at your desk or Stand often

Prevention of upper limb related injuries:

Muscles and tendons can become painful with repetitive movements and awkward postures and symptoms of overuse injuries in the upper limbs include pain, swelling, and stiffness of the joints, weakness and numbness

• Keep your mouse at the same height as your correctly positioned keyboard
• Position the mouse as close as possible to the side of the keyboard
• Use your whole arm, not just your wrist, when using the mouse
• Type lightly and gently
• Mix your tasks to avoid long, uninterrupted stretches of typing
• Remove the hands from the keyboard when not actively typing, to allow the arms to relax

Prevention of Eye strain:

Focusing your eyes at the same distance point for extended periods of time causes fatigue

• Make sure your primary light source is not shining into your face or directly onto the monitor
• Tilt the monitor slightly to eliminate reflections or glare
• Make sure your computer screen is not too close to your face
• Position the screen so that it is either at eye level or slightly lower
• Reduce the contrast and brightness of your screen by adjusting the controls on the monitor
• Frequently look away from the screen and focus on faraway objects
• Have regular eye examinations to check that blurring, headaches and other associated problems are not caused by any underlying disorders
  Reference: Healthcare Magic. (2010). How to prevent computer related injuries. Retrieved from Health Care Magic: http://www.healthcaremagic.com/articles/How-to-prevent-computer-related-injuries/7663

Google

Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products,[6] and generates profit primarily from advertising through itsAdWords program.[3][7] The company was founded by Larry Page and Sergey Brin, often dubbed the "Google Guys",[8][9][10] while the two were attending Stanford University as Ph.D. candidates. It was first incorporated as a privately held company on September 4, 1998, and itsinitial public offering followed on August 19, 2004. At that time Larry Page, Sergey Brin, and Eric Schmidt agreed to work together at Google for twenty years, until the year 2024.[11] The company's stated mission from the outset was "to organize the world's information and make it universally accessible and useful",[12] and the company's unofficial slogan – coined by Google engineer Paul Buchheit – is "Don't be evil".[13][14] In 2006, the company moved to their current headquarters in Mountain View, California.
Google runs over one million servers in data centers around the world,[15] and processes over one billion search requests[16] and about twenty-four petabytes of user-generated data every day.[17][18][19][20] Google's rapid growth since its incorporation has triggered a chain of products, acquisitions, and partnerships beyond the company's core web search engine. The company offers online productivity software, such as its Gmail email software, and social networking tools, including Orkut and, more recently, Google Buzz. Google's products extend to the desktop as well, with applications such as the web browser Google Chrome, the Picasa photo organization and editing software, and the Google Talk instant messaging application. Notably, Google leads the development of the Android mobile phone operating system, used on a number of phones such as the Nexus One and Motorola Droid. Alexa lists the main U.S.-focused google.com site as the Internet's most visited website, and numerous international Google sites (google.co.in, google.co.uk etc.) are in the top hundred, as are several other Google-owned sites such as YouTube, Blogger, and Orkut.[21] Google is also BrandZ's most powerful brand in the world.[22] The dominant market position of Google's services has led to criticism of the company over issues including privacy, copyright, and censorship.[23][24]

Google Name	Founders Larry Page and Sergey Brin named the search engine they built “Google,” a play on the word “googol,” the mathematical term for a 1 followed by 100 zeros. The name reflects the immense volume of information that exists, and the scope of Google’s mission: to organise the world’s information and make it universally accessible and useful.
Google Search	When you visit www.google.com or one of more than 150 other Google domains, you can find information in many different languages, check stock quotes and sports scores, find news headlines and look up the address of your local post office or grocery store. You can also find images, videos, maps, patents and much more. With universal search technology, you may see all of these items combined in one result page for your query, and services such as personalized search help you find even more information tailored to your interests. We’re also working to digitize some of the world’s information that until recently hasn’t been online, like books.
Google Application	Gmail, calendar, Google maps, Google talk, Picasa Web album etc.