wifi bad effect - wifi negative impact

wifi bad effect - wifi negative impact

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8:44 AM 2 Comments

wifi bad effect = wifi negative impact

Wi-Fi (wireless fidelity), better known as wireless local networks are becoming increasingly popular, especially in developed countries and the developing world. With wi-fi network of people able to enter the Internet without the hassle of connecting cables from the computer to a phone line.

It is nice if we are in existing around wi-fi spot (such as my school). But we must be careful with the wi-fi signal that have influence is also against our bodies. Want to know?

Behind the convenience offered wi-fi, there are some beliefs that consider public wi-fi has a negative impact on health. Those who do not agree with the presence of wi-fi electro-magnetic radiation from unreasonable wi-fi can cause pain in the head, sleep disturbances and nausea, especially for those who electrosensitive. Wi-fi but is harmful to health?

Fear of adverse effects on health wi-fi is countered British scientists. As expressed by Sir William Stewart, chairman of the Health Protection Agency, told the BBC Panorama Programme, there was nothing to worry about with wi-fi technology. There's no definitive proof that mentioned, devices such as mobile phones and wi-fi health causes disturbed.

Similar Professor Lawrie Challis also disclosed, from Nottingham University. In a statement on the BBC, Monday (05/21), Professor Challis, who served as chairman of Mobile Telecommunications and Health Research (MTHR) said: "electro-magnetic radiation from Wi-fi is very small, low-power transmitter as well, besides there is still a distance with the body.

"It could be electro-magnetic radiation is very close to the body, when we assume the laptop, but in my pengamaatan each parent will ask their children not to get too often use their phones and always asked them to put the laptop on the table, not in your lap, if they are surfing for too long. "To support this statement, the BBC Panorama team visited a school in Norwich, which has a thousand students, and try to compare the levels of radiation from mobile phones and wi-fi use in the classroom. The results show a wi-fi radiation in a classroom three times larger than the jet issued cell phone.

But health experts say psychic Professor Malcolm Sperrin wi-fi signal greater than three times the radiation of mobile phones in a school still relevant, because it has not found the impact on health.

"Wi-fi is a technology that uses radio waves of low electro-magnetic, which is comparable to a microwave oven, even one hundred thousand times lower than the microwave."

The type of radiation emitted by radio waves (wi-fi), microwaves, and phones has significantly increased the level of tissue temperature is very high, commonly called a thermal interaction, but there is still no evidence that level cause damage.

Health Protection Agency says sitting in a room that has a hotspot for a year comparable to the radio waves emitted during a conversation with the phone for twenty minutes.

"Radio waves are part of our lives for almost a century or more, but if there is a significant disruption to health, there must be studies that will be recorded, and during these various studies have yet to find evidence of transmission wi-fi for your health.

This matching is also supported by Professor Will J Stewart, fellow of the Royal Academy of Engineering, who said: "Science has studied the effect of mobile phone pengetahunan for health over the years and fears of the impact of mobile phone radiation is still very small.

"So also with a wi-fi, if used within reasonable limits there would be no effect on health in a long time. But that does not mean all the electro-magnetic radiation are harmless, such as sunlight proven cause of skin cancer, so if you're using a laptop while sunbathing on the beach, it's good to find a shady place, "added Sperrin who said up to now there is still no sufficient evidence berarrti lot will negatively impact the wi-fi.

But more are feared Sperrin not on wi-fi wave, but the behavior in the use of laptops, and laptop heat generated in some sensitive parts of the body, which has an impact on health.

tag :healthy, Wifi, bad effect, Impact, technology, internet study.

Ada Lovelace, the World's First Computer Programmer

Ada Lovelace, the World's First Computer Programmer

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11:02 AM Add Comment

Ada Lovelace, the World's First Computer Programmer

24 March, a day of commemoration Ada Lovelace, a woman who is the world's first computer programmer from England. The whole world bloggers post similar topics, and technologies around the Eve, in honor of women who live in this 19th century. Who was Ada Lovelace? His name is not as famous as Charles Babage or Alan Turing, but he was the first computer programmer who deserve a place in the hearts of today's technology enthusiast.

There's full name Augusta King, Countess of Lovelace was born in December 1815, There is an only child of Lord Byron, a famous poet of that period. But there had never known her father since her mother and father's wedding is very short. There mother, Annabella, educating There is to rely more on her left brain in order not to follow the career footsteps of his father. There are so very clever in mathematics from an early age. In 1828 he had designed a flying machine.

In 1883 she met Charles Babbage, and helped write the world's first computer program for Babbage's creation engine, Analytical Engine, the forerunner to today's computers. An important part of the contribution of women is translating the memoirs of Luigi Menabrea, and added a note that includes metide calculating Bernoulli numbers on the machine. There has also written a number of initial explanation about computer and software. Unfortunately he never could complete its development around the world of computers uty because he died at the age of 36 years because of cancer and bleeding at 27 Novemver 1852.

wimax work implement

wimax work implement

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10:47 AM Add Comment

wimax work implement

Wimax, How Far we Ready to implement

In Indonesia, it has not sepopuper Wimax Wi-Fi (Wireless Fidelity). But as one state licensees Wimax (Worldwide Interoperability Mobile Access), Indonesia has the authority to apply this technology in the telecommunications mobile operators who have either preparedness readiness of infrastructure and operational readiness-maintanance. Wimax wireless broadband access is expected to give a fresh breeze in the midst of the telecommunications industry competition and market needs.

Little Review about Wimax

In the session of the International Telecommunications Union (ITU), Wimax included in the IMT-2000 standard. These standards also known as third generation mobile telecommunications standard (3G) spectrum covering 2.5 to 2.69 gigahertz.

Currently undergoing WiMAX coexistence studies to ensure its status as one of the 3G technology. In fact, through his IMTAdvanced standard ITU, Wimax is ready to 4G technology.

Wimax on the side of the Manufacturer or Provider

Head of General and Public Relations Directorate General of Post and Telecommunication, Gatot S. Dewa Broto confirmed, his party has prepared a set of rules in the form of draft Regulation of the Minister of Communications and Informatics for the tender of BWA (broadband wireless access), which will begin in 2008. Tenders are intended for equipment supporting the industry to license a single block of frequencies in the 2.3 GHz band.

Wan Yi, Director of Wireless and Mobile Communications Department at China Standards Association (CCSA), said 3G Wimax satus would disrupt the balance of the mobile industry.

"The 3G technology relies on the triangular structure of W-CDMA, CDMA, and TD-SCDMA. Wimax will this affect the massive secar. All the big vendors W-CDMA and CDMA oppose this, "said Wan. Wimax is a technology that uses SOFDMA techniques, multicarrier modulation technique that uses subchannelisasi. Provider uses frequency standard for customer equipment (fixed) and mobile (normadic). Wimax different modulation techniques with CDMA CDMA which uses different code for each customer.

Wimax on the Consumer Side

Wimax technology can cover an area of about 50km, where hundreds of users will wish to share signals and channels for data transmission up to 155 Mbps.

In mobile applications, users like to use the terminal Wifi Wimax such as: notebooks, PDAs, and smartphones. Wimax utilization with the use of Wifi. A terminal can detect Wimax and Wifi network so that users will increasingly be eased because they can choose Wimax broadband (Wimax network) or wireless hotspot (for network Wifi / Wireless LAN).

Synergy Wimax-Wifi-Cell

Wifi (Wireless LAN) is a wireless communication network via the LAN computer. Its scope is limited to certain areas, so called hotspots. Services provided can be varied, like LAN applications such as email, internet, intranet, messaging, music / video streaming and other IP service base.

When Wifi Wimax combined with the obvious implementation will accelerate and expand its use, more secure because it can be a QoS (Quality of Service), more reliable, and rich in new services.

Synergies between the mobile WiMAX combines cable and wireless networks, services and terminals. In general, the concept of convergence in telecommunications involves three aspects, namely: devices, services, and network.

Wimax generally introduced as a solution that offers access to multi-access, for example: WiMAX to complement the existing networks (2G/3G and WiFi). Wimax will automatically lead to the emergence of competition from 3G bearers

3G service is mobile communication service that promises up to 384 Kbps bandwidth peningkakan when accessed in a state of motion (normadic) while for the vehicle moving speed 128 Kbps and 2 Mbps sampao rest. GSM-based 3G technology (WCDMA) and CDMA (CDMA 2000). Thus advantages of speed and Wimax is a more attractive service than the 3G. However, the ability mobilitynya 3G is still more superior because it uses the node B, which of course can cover a wider.

Which is better Adbrite, Adsense or Bidvertiser?

Which is better Adbrite, Adsense or Bidvertiser?

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8:58 PM 1 Comment

AdBrite, AdSense Or Bidvertiser - Which is better?
Let's look at each ad providers one by one.

AdBrite
AdBrite offers a way for publishers to change the traffic to their sites offering ad. By posting "Your Ad Here" spaces on their sites, publishers can connect visitors to a site advertising opportunities that they are currently offering and therefore generate more interest in the site will be advertising space than is possible only through AdBrite's marketplace.

Facebook reached 350 million users

Facebook reached 350 million users

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7:22 AM 2 Comments

as the service's of the most popular social network, Facebook recently said has reached 350 million users. Figures are expressed Mark Zuckerberg, Facebook founder in the official blog of the service.
"This is a best year since make the world more open and interconnected. Thanks to you, more than 350 million people around the world use Facebook to share their lives online," Zuckerberg said in the first sentence written blog article on Wednesday (2 / 12).
According to him, the factors that made Facebook become as popular as it is the features that focus on the needs of users to share and manage personal information. However, he realized that the need for privacy was the main concern as more and more users and the information is very much in circulation.
"We're going to add something that has a lot of you asked for, namely the ability to control who can see any content that you create or upload,"
he said. In the near future, will provide a combination of Facebook privacy settings so that more users can be sorted according to their needs, whether the messages, photos, video or other content on the Facebook can be seen all the people or just friends.
so as facebooker would now be more comfortable in the action.

source : http://tekno.kompas.com

Domain name is

Domain name is

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2:52 PM Add Comment

A domain name is an identification label that defines a realm of administrative autonomy, authority, or control in the Internet, based on the Domain Name System (DNS).

Domain names are used in various networking contexts and application-specific naming and addressing purposes. They are organized in subordinate levels (subdomains) of the DNS root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, net and org, and the country code top-level domains (ccTLDs). Below these top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users that wish to connect local area networks to the Internet, run web sites, or create other publicly accessible Internet resources. The registration of these domain names is usually administered by domain name registrars who sell their services to the public.

Individual Internet host computers use domain names as host identifiers, or hostnames. Hostnames are the leaf labels in the domain name system usually without further subordinate domain name space. Hostnames appear as a component in Uniform Resource Locators (URLs) for Internet resources such as web sites (e.g., en.wikipedia.org).

Domain names are also used as simple identification labels to indicate ownership or control of a resource. Such examples are the realm identifiers used in the Session Initiation Protocol (SIP), the DomainKeys used to verify DNS domains in e-mail systems, and in many other Uniform Resource Identifiers (URIs).

An important purpose of domain names is to provide easily recognizable and memorizable names to numerically addressed Internet resources. This abstraction allows any resource (e.g., website) to be moved to a different physical location in the address topology of the network, globally or locally in an intranet. Such a move usually requires changing the IP address of a resource and the corresponding translation of this IP address to and from its domain name.

This article primarily discusses the group of domain names that are offered by domain name registrars for registration by the public. The Domain Name System article discusses the technical facilities and infrastructure of the domain name space and the hostname article deals with specific information about the use of domain names as identifiers of network hosts.

sorce : http://en.wikipedia.org/wiki/Domain_name