Jumaat, 8 Mei 2009

Embedded Computers in Household Appliances

An embedded computer is a single chip that contains all of the elements that are essential for any computer such as RAM, ROM, CPU, Input, Output and Clock. Another term often used for an embedded computer is a 'micro controller'. This is because the main purpose of an embedded computer is to control something. A lot of things have an embedded computer in it such as
Plasma television.

A Plasma televisdion is a high definition (HDTV) alternative to the standard cathode ray televisions sold today. A plasma television provides sharp images and vibrant colors, especially when used in conjunction with high definition broadcasts. Quite often a plasma TV is designed in a 16:9 ratio for wide screen movie formats, as opposed to the box-like 4:3 ratio of standard televisions. A plasma television such as Philips and Sony are not cheap, however. Units start at $1,000 BND and can be as high as $15,000 BND or more.
The very first prototype for a plasma display monitor was invented in July 1964 at the University of Illinois by professors Donald Bitzer and Gene Slottow, and then graduate student Robert Willson. However, it was not until after the advent of digital and other technologies that successful plasma televisions became possible.

Khamis, 7 Mei 2009


e-bay is a type of online auction website which may be found at http://www.ebay.com/. It was found on the 3rd of September 1995 by by French-born Iranian computer programmer Pierre Omidyar and the headqaters of eBay inc. which manages the site can be located at San Jose, California, USA. In 2008 eBay in made a profit of US$8.46 million. The company also employees 15,500 workers during the year 2008. eBay has a wide varieties of household and working needs such as Antiques,Art,Books,Business & Industrial, DVD players, play stations, collectables and countless others.

Effects that robots have brought to the Working Enviorment

A robot is a virtual or mechanical artificial agent. In practice, it is usually an electo-mechanical system which, by its appearance or movements, conveys a sense that it has intent or agency of its own. Robot also have a lot of advantages, but that doesn't mean robot have no disadvantages here are some of them:
The Advantages of Industrial Robots
Robots have the capacity to dramatically improve product quality. Applications are performed with precision and high repeatability every time. This level of consistency can be hard to achieve any other way.
With robots, throughput speeds increase, which directly impacts production. Because robots have the ability to work at a constant speed without pausing for breaks, sleep, vacations, they have the potential to produce more than a human worker.
Robots increase workplace safety. Workers are moved to supervisory roles, so they no longer have to perform dangerous applications in hazardous settings.
Greater worker safety leads to financial savings. There are fewer healthcare and insurance concerns for employers. Robots also offer untiring performance which saves valuable time. Their movements are always exact, so less material is wasted.
The Disadvantages of Industrial Robots:
The initial investment of robots is significant, especially when business owners are limiting their purchases to new robotic equipment. The cost of automation should be calculated in light of a business' greater financial budget. Regular maintenance needs can have a financial toll as well.
Incorporating industrial robots does not guarantee results. Without planning, companies can have difficulty achieving their goals.
Employees will require training in programming and interacting with the new robotic equipment. This normally takestime and financial output.
Robots may protect workers from some hazards, but in the meantime, their very presence can create other safety problems. These new dangers must be taken into consideration.

Khamis, 23 April 2009

Avoiding computer-related healht problems

Health risk:
Computer vision syndrome. The most common symptoms are: eye fatigue, dry eyes, burning eyes, light sensitivity, blurred vision, headaches.
1.Position your monitor so there is no glare in your eyes - either direct, or reflected in the computer screen
2.Adjust the screen brightness, contrast and colour to comfortable levels
3.Rest your eyes every 30 minutes
4.Refocus your eyes occasionally by looking at a distant object
5.The distance from your eyes to the monitor should be 18 to 30 inches
6.The top of the screen should be slightly below eye level
7.Use an anti-glare screen
8.When staring at a computer, people blink less frequently - about five times less than normal, according to studies. Look away often to induce blinking, or close your eyes briefly from time to time .

Hands and wrists Health
Health risk:
Repetitive stress syndrome. The common symptoms are tightness, discomfort, stiffness, soreness or burning in the hands, wrists, fingers, forearms, or elbows; tingling, coldness, or numbness in the hands; clumsy or awkward hands.
1.Your keyboard should be at or slightly below elbow height (90 to 110 degrees)
2.Your elbows should be close to your body, with your forearms relaxed
3.Your wrists should not be extended, flexed or bent to either side
4.Tilt your keyboard so that the front of the keyboard is higher than the back. Most keyboards have tiny pullout stands that help you do this
5.Use the keyboard lightly. Don't hammer it
6.Use two hands to perform double-key operations like Ctrl-C or Alt-F
7.Keep your mouse near and at the same level as your keyboard
8.Avoid holding your mouse tightly and for prolonged periods
9.Most important - don't indulge in computer games that require long periods of intense keyboard or mouse activity
Back and shoulders
Health risk:
Back and shoulder pain
1.Choose a comfortable chair that provides back support. Rather than an upright position, recline at a 100- or 110-degree angle. Adjust the lumbar support so it conforms to the curve in the small of your back
2.Keep your head and neck as straight as possible
3.Avoid overreaching
4.Chair arms should be used only if they do not obstruct your sitting position and posture
5.Position your monitor, keyboard and chair in a straight line
6.Your shoulder and neck muscles should be relaxed. Your upper arms should hang comfortably at your sides
7.Your thighs should be parallel to the floor
More tips
1.Break-up activities that require repetition
2.Use a document holder to view documents and keep the holder near your monitor
3.Your work surface should be large enough to accommodate computer equipment and work materials
4.Keep frequently used items within easy reach
5.Do not cradle your phone between your shoulder and chin. Use a headset if you use the phone and computer at the same time often
6.Maintain a comfortable temperature in your work area

Sabtu, 14 Mac 2009

About Myself

Name: Ak Muhd Nur Iqbal
Nick Name:Iqbal
Age:13 years old(2009)
School:Maktab Sains PSBS & Sekolah Ugama PAP Hafizah Sururul Bolkiah
Favourite:Surfing the Internet & Watching television