By historical regions. By type of technology. History of agriculture History of biotechnology History of communication History of computer hardware History of electrical engineering History of manufacturing History of materials science History of measurement History of medicine History of nuclear technology History of transport.
Telephone - Wikipedia
Technology timelines. Timeline of historic inventions Complete list by category. Article indices. Outline of technology Outline of prehistoric technology. This section needs additional citations for verification. Main article: History of computers. History of telecommunications. Optical communication. Attention economy Big data Cognitive-cultural economy Computer crime Cyberterrorism Cyberwarfare Datamation - First print magazine dedicated solely to covering information technology. The information age: United Nations Public Administration Network. Retrieved 18 April Retrieved from https: Social Media Culture.
Godage and Brothers. The Scholar and the Future of the Research Library. New York City: Hadham Press. Retrieved Moore also affirmed he never said transistor count would double every 18 months, as is commonly said. Initially, he said transistors on a chip would double every year. He then recalibrated it to every two years in David House, an Intel executive at the time, noted that the changes would cause computer performance to double every 18 months.
Biological and Digital Worlds". Harvard Business Review. Retrieved 9 September Preparing ourselves for the 21st century capitalism, by Robert Reich. New York: Knopf Publishing, ". Human Resource Management. In defense of Globalization.
Oxford University Press. Output vs. Jobs, January to August ". Economics and Statistics Administration, Department of Commerce. Retrieved 29 April Javier; Woo, Carolyn Y. Journal of Business Venturing. The New York Times. In Bhat, K. Physics of semiconductor devices. New Delhi, India: Narosa Publishing House. Sendai New. Archived from the original on September 29, Retrieved April 5, Institute of Electrical and Electronics Engineers.
We were burning: Japanese entrepreneurs and the forging of the electronic age. The history of telecommunication - the transmission of signals over a distance for the purpose of communication - began thousands of years ago with the use of smoke signals and drums in Africa , America and parts of Asia. In the s the first fixed semaphore systems emerged in Europe however it was not until the s that electrical telecommunication systems started to appear. From Wikipedia, the free encyclopedia. Further information: History of writing. History of the alphabet. History of telecommunication.
The Invention of Writing".
Retrieved Volume Library 1. The Southwestern Company.
Huurdeman Worldwide History of Telecommunications. Digital Preservation Management. PC World. Communication studies. History Outline.
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Retrieved from " https: A simulation study at the University of Utah found a sixfold increase in distraction-related accidents when texting. Due to the increasing complexity of mobile phones, they are often more like mobile computers in their available uses. This has introduced additional difficulties for law enforcement officials when attempting to distinguish one usage from another in drivers using their devices.
This is more apparent in countries which ban both handheld and hands-free usage, rather than those which ban handheld use only, as officials cannot easily tell which function of the mobile phone is being used simply by looking at the driver. This can lead to drivers being stopped for using their device illegally for a phone call when, in fact, they were using the device legally, for example, when using the phone's incorporated controls for car stereo, GPS or satnav.
A study reviewed the incidence of mobile phone use while cycling and its effects on behaviour and safety. Accidents involving a driver being distracted by talking on a mobile phone have begun to be prosecuted as negligence similar to speeding. New Zealand has banned hand-held cell phone use since 1 November Many states in the United States have banned texting on cell phones while driving. Illinois became the 17th American state to enforce this law. This database of laws provides a comprehensive view of the provisions of laws that restrict the use of mobile communication devices while driving for all 50 states and the District of Columbia between when first law was passed, through 1 December The dataset contains information on 22 dichotomous, continuous or categorical variables including, for example, activities regulated e.
In , an estimated pedestrians were injured in the US while using a cellphone and some jurisdictions have attempted to ban pedestrians from using their cellphones. The effect of mobile phone radiation on human health is the subject of recent [ when? Mobile phones use electromagnetic radiation in the microwave range, which some believe may be harmful to human health. A large body of research exists, both epidemiological and experimental, in non-human animals and in humans.
The majority of this research shows no definite causative relationship between exposure to mobile phones and harmful biological effects in humans. This is often paraphrased simply as the balance of evidence showing no harm to humans from mobile phones, although a significant number of individual studies do suggest such a relationship, or are inconclusive.
Other digital wireless systems , such as data communication networks, produce similar radiation. On 31 May , the World Health Organization stated that mobile phone use may possibly represent a long-term health risk,   classifying mobile phone radiation as "possibly carcinogenic to humans" after a team of scientists reviewed studies on mobile phone safety. Some recent [ when? Lennart Hardell and other authors of a meta-analysis of 11 studies from peer-reviewed journals concluded that cell phone usage for at least ten years "approximately doubles the risk of being diagnosed with a brain tumor on the same 'ipsilateral' side of the head as that preferred for cell phone use".
In May , preliminary findings of a long-term study by the U. A study by the London School of Economics found that banning mobile phones in schools could increase pupils' academic performance, providing benefits equal to one extra week of schooling per year. The average user replaces their mobile phone every 11 to 18 months,  and the discarded phones then contribute to electronic waste. Mobile phone manufacturers within Europe are subject to the WEEE directive , and Australia has introduced a mobile phone recycling scheme.
Apple Inc. According to the Federal Communications Commission , one out of three robberies involve the theft of a cellular phone. All mobile phones have a unique identifier called IMEI. Anyone can report their phone as lost or stolen with their Telecom Carrier, and the IMEI would be blacklisted with a central registry. There are, however, a number of ways to circumvent a blacklist. One method is to send the phone to a country where the telecom carriers are not required to implement the blacklisting and sell it there,  another involves altering the phone's IMEI number.
Demand for metals used in mobile phones and other electronics fuelled the Second Congo War , which claimed almost 5. The profits from the minerals finance the bloodiest conflict since the second world war; the war has lasted nearly 20 years and has recently flared up again. For the last 15 years, the Democratic Republic of the Congo has been a major source of natural resources for the mobile phone industry. From Wikipedia, the free encyclopedia. For the film, see Cell Phone film. For the film, see Handphone film.
For the mobile personal computer, see Smartphone. Main article: History of mobile phones. Feature phone. Main articles: Cellular network and WiFi. Mobile phone features. Display device. Mobile operating system. This section needs expansion.
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You can help by adding to it. October Mobile app. See also: List of digital distribution platforms for mobile devices. This section needs to be updated. Please update this article to reflect recent events or newly available information. Last update: Statistics until mid is needed for some parts of this section. August List of best-selling mobile phones and List of mobile phone makers by country. Mobile phone operator. Mobile banking and Mobile payment.
Branchless banking and Contactless payment. Cellphone surveillance and Mobile phone tracking. Mobile phones and driving safety and Texting while driving. Mobile phone radiation and health. Nomophobia and Mobile phone overuse.
Mobile phone features
Mobile phone use in schools. Mobile phone recycling. Conflict minerals. Telecommunication portal Internet portal. Celebrating 30 Years of Mobile Phones". Retrieved 7 September Almost 40 percent of the world's population — 2. The developing world is home to about million female Internet users and million male Internet users.
The developed world is home to about million female Internet users and million male Internet users. Retrieved 21 May Archived from the original on 22 October Retrieved 29 July Purdue School of Engineering. Retrieved 23 April Public Radio International. A 'Kosher Phone' Permitted on Shabbat".
Arutz Sheva. CPU World Glossary. CPU World. Retrieved 1 January Retrieved 3 April The Verge. Vox Media. Performance Characteristics and the Effects on the User Interface". Gawker Media. Retrieved 8 June Apple Support. We Asked An Expert". Digital Trends. February 18, Retrieved February 24, Egham, UK: Strategy Analytics. Retrieved 20 March The rise and fall of a mobile pioneer". Retrieved 11 July Retrieved 3 August