An invention that changed the world This invention we all need. Small black or large invention is the great one of the greatest inventions of history as much as it changes the course of the world
It is the mobile.
Mobile, mobile, cellular, mobile, or mobile (localization from mobile or portable) is a wireless communication tool that operates through a network of broadcast towers distributed to cover a specific area, and then interconnects via fixed lines or satellites. With the development of these devices, they have become more than just a means of voice communication, they are like a laptop computer, for example, recording appointments, receiving voicemail, browsing the network, photography etc. - Also, mobile phones have become one of the means of advertising as well and because of the competition of communications network operators, the cost of calls and data exchange decreased to nine categories more than Society, mobile phones expanded in remote areas. So the number of users of these devices has constantly increased to replace fixed communication devices.It dates back to 1947 when Lucent Technologies began experiments in its laboratory with "New Jersey", but it was not the owner of the first cellular cell phone, but the owner of this achievement was the American Martin Cooper, a researcher at Motorola Communications in Chicago, where he made his first call on April 3, 1973. The main principle in the mobile phone depends on the reception and transmission circuit via vibrating signals via terrestrial transmitting stations, including satellite, just like radio signals, but the cellular and its terrestrial networks differ from them and vibrational signals such as EKG ascending and descending which is very strong up to 20MZ transmission and reception per second per second. The method of communication is through an integrated circuit that lies in the personal mobile and the main switch of the company and the line (sim card), which is a small card that has a very small and accurate storage unit and a processing unit in which the user data that he uses to communicate with others is stored as for the characteristics of the mobile P Be from the circle of sending and receiving unit and a central processing and sub-Ramah flash to store information and can be written SMS and enjoy mobile properties, namely:
Connect to and see others with the new generation of dct4 devices equipped with micro cameras.
SMS can be sent anywhere in the world. Entertainment with games, as well as modern Java games. Listen to audio files of various extensions (such as ogg. Wav. Mp3), listen to radio, voice recorder and other games shared between devices and across network lines. It should be noted that the mobile phone has issued several studies confirming that a large exposure to the vibrations of broadcasting or placing the phone itself next to the human heart, for example, may harm its health and sometimes lead to breakdowns in pacemakers.The mobile phone has evolved so much that there are mobile phones now in the form of a wrist watch as it was in the science fiction movies in the past and contains all the capabilities of smart mobile phones such as internet service and satellite positioning service and all other services. I have been using a mobile phone for the past 10 years and have understood and faced the advantages and disadvantages of using a mobile phone. Cell phones used by almost everyone these days. When a new person meets, or when you have a new friend, the information you take from that person belongs to his mobile phone number. Using cell phones has many advantages and disadvantages and most of you know that. Earlier in the day, as we are outside the home or office, we need to search for a public phone booth to make a phone call, but for now, just pick up your mobile phone and dial. I am seeking to list and misuse of mobile phone in this position.
Positives Permanent contact Always be in touch with anyone who knows your mobile number who can call you. Whether entering your country or if you are outside, you can use the facilities to roam anywhere, and connect all that time. You can use features such as text messages to send and receive messages, send greetings, multimedia messages to send pictures, and obtain information such as news, flight time, and many more.
Internet Now most of the mobile service providers have EDGE, a fourth generation (wireless communications) or a third generation enabled this network. You can use the Internet anytime, anywhere. If you need to check your mail, you can do this when traveling abroad or your office. You can respond to important emails or messages from your mobile phone itself. Features like Microsoft Exchange and BlackBerry are really great. When you receive an email on your server, you get it pushed to your mobile phone. Another PDA or iPhone is not just cell phones, but rather a mobile office description. I get all the messages arrived to my HTC TyTN II. Even if I'm traveling, I'm always aware of important messages and I can respond quickly as I enter my office. I can use the desktop remotely with my pocket pc using wi-fi connections, through which I can access all my desktop desktops from anywhere in the world. There is an excellent service called Logmein, which I have been using for a long time. Another excellent feature of the mobile internet is that you can use the internet to share internet use on your laptop while you are traveling. Just connect your pocket pc, PDA or mobile phone with Edge GPRS or 3G or internet and use it on your laptop. Other features like bluetooth and infrared are frequently used. I am post using the articles voice of my mobile phone which is what I really needed badly. Other features like calendars, contacts, task, and reminder are really something that can't be missed. Once you use this type of feature, it will be very difficult to mange your day without a mobile phone. Disadvantages of using mobile phones: I mentioned that feature above, but that's a huge disadvantage. You have always been in a relationship with the world, and you have always been responsible for answering a phone call or if you are using a BlackBerry device or Windows Mobile 5.0, you get emails that need to be answered immediately because your company or customers expect you. You cannot really misunderstand from this side, but your family or children feel this much more. If you are on vacation and you are roaming, your office expects to respond to e-mail or phone calls that you receive via mobile. You lose your privacy, and your freedom to be safe from your daily routine when you are connected.
Negatives The mobile phone has become time-consuming, subconsciously, from whoever, man, woman, young man, young woman, child, adult, minor, where he dominates every person and occupies him for an easy period of time, distracting him from carrying out his duties and forgetting his duties, connections, appointments, and daily work. So, he became a factor of social and educational disturbances and conflicts.
His health risks Finnish experts in the field of radiology have warned against leniency or minimizing the risks caused by mobile phone radiation. A study conducted by these experts has reached unsuspecting results for mobile phone users, as mobile phone damage was discovered by identifying the biological changes caused by phone radiation in The performance of body cells.
Radiologists said that the radiation from the mobile affects in one way or another the protein system (Femantine) found in the cells of the human body, exposing these cells to change the way it works and its effectiveness.
He added that mobile phone radiation can change the function of cells, This leads to disruption or causing chemical tensions in the cell structure, which contributes to the possibility of developing tumors, especially in the brain region. And that the radiation from the cellular devices directly affect the "actin" protein, which is one of the main parts of the cell and its structure.
There is a new American study at Washington University in which experts have warned of the danger of children using a mobile phone. They recommended not to leave the cell phone in the hands of young children as a tool for playing because the brain cells at this age grow rapidly, and their exposure to electromagnetic waves leads to danger. It may have negative effects on the child and the fetus, and from here they emphasized that pregnant mothers should not be exposed to a massive mobile phone until it is proven that its uses are not harmful.
