Development of mobile phones from time to time is very fast. From the early generations who weighs 35 pounds now only about 70 grams, even less than that. Its reach was becoming increasingly widespread only. Features that stuffed more and more, not just for phone fun, even a feature that should be separated only in one hand like camera, Internet connection, GPS, music player and so forth. Well, want to know how the development / history of mobile phones from generation 0 alias of the earliest to date? Come see!
Generation 0The history of invention can not be separated from the development of mobile radio. Early discovery of mobile phones began in 1921 when the Detroit Police Department Michigan tried to use a car phone in one direction. Then, in 1928 the Detroit Police Department began using one-way radio communication on all regular patrol car with a frequency of 2 MHz. on further developments, radio evolved into a two-way communication with''''frequency modulated (FM).In 1940, Galvin Manufactory Corporation (now Motorola) to develop portable Handie SCR536-talkie, which means cebuah means of communication on the battlefield during World War II. This period is a generation 0 phones or 0-G, where mobile phones were introduced.After removing the SCR536, then in 1943 Galvin Manufactory Corporation issued a return partable first FM two-way radio that is named SCR300 backpack model for U.S. army This tool weighs about 35 pounds and can work effectively within the operating range of 10 to 20 miles.0-G phone systems still use a VHF radio system for connecting a phone directly to PSTN landline. The weakness of this system is the problem of network congestion on that later led to attempts to replace these systems.Generation 0 ends with the discovery of the modern concept by engineers from Bell Labs in 1947. They invented the concept of using hexagonal as the basic mobile phone. However, this new concept was developed in the 1960s.
Generation IThe first generation phone called 1G. 1-G is the first phone that actually. In 1973, Martin Cooper of Motorola Corp. 'find first cell phone and introduced to the public on April 3, 1973. Phones that found by Cooper has a weight of 30 ounces or about 800 grams. This invention has changed the world forever. The technology used 1-G is still analog and is known as AMPS. AMPS uses frequency between 825 Mhz-894 Mhz and operated at 800 Mhz. Because it is analog, then the system used is still regional. One drawback of generation 1-G is because the size is too large to be held by hand. Their large size is because the purposes of power and poor battery performance. In addition, generation 1-G still has a problem with user mobility. During the call, the user mobility is limited to coverage area of cellular phones.
Generation IIThe second generation or 2-G appears at around the 1990's. 2G in the U.S. already use CDMA technology, whereas in Europe use GSM technology. Uses standard GSM frequency 900 Mhz and 1800 Mhz frequencies. With these frequencies, GSM has a larger customer capacity. In 2G generation analog signal has been replaced with digital signals. The use of digital signals to equip mobile phones with voice mail, call waiting, and SMS. The phone in this generation also has a smaller size and lighter because of the use of digital chip technology. The smaller size is also due to the need for a smaller battery power. Advantages of 2G generation is the size and weight of the smaller and lower radio signals, thus reducing the radiation effect membayakan users.
Generation IIIThis generation is also called 3G that enables network operators to give their users a wider range, including the internet as well as high tech video calls. In 3G there are 3 standard for the telecommunications world that Enhance Datarates for GSM Evolution (EDGE), Wideband-CDMA, and CDMA 2000. The downside of this is the 3G generation relater higher costs, and lack of network coverage because this technology is still new.
Generation IVThis generation is also called Fourt Generation (4G). 4G is a mobile system that offers a new approach and infrastructure solutions that integrate the existing wireless technologies including wireless broadband (WiBro), 802.16e, CDMA, wireless LAN, Bluetooth, dlll. 4G systems based on the heterogeneity of IP networks that allow users to use a variety of systems anytime and anywhere. 4G also provides users with high speed, high volume, good quality, global reach, and flexibility to separately explore the various different technologies. Finally, 4G provides fast data transmission service to accommodate a variety of applications such as multimedia, video conferencing, online gaming, and more.
Generation 0The history of invention can not be separated from the development of mobile radio. Early discovery of mobile phones began in 1921 when the Detroit Police Department Michigan tried to use a car phone in one direction. Then, in 1928 the Detroit Police Department began using one-way radio communication on all regular patrol car with a frequency of 2 MHz. on further developments, radio evolved into a two-way communication with''''frequency modulated (FM).In 1940, Galvin Manufactory Corporation (now Motorola) to develop portable Handie SCR536-talkie, which means cebuah means of communication on the battlefield during World War II. This period is a generation 0 phones or 0-G, where mobile phones were introduced.After removing the SCR536, then in 1943 Galvin Manufactory Corporation issued a return partable first FM two-way radio that is named SCR300 backpack model for U.S. army This tool weighs about 35 pounds and can work effectively within the operating range of 10 to 20 miles.0-G phone systems still use a VHF radio system for connecting a phone directly to PSTN landline. The weakness of this system is the problem of network congestion on that later led to attempts to replace these systems.Generation 0 ends with the discovery of the modern concept by engineers from Bell Labs in 1947. They invented the concept of using hexagonal as the basic mobile phone. However, this new concept was developed in the 1960s.
Generation IThe first generation phone called 1G. 1-G is the first phone that actually. In 1973, Martin Cooper of Motorola Corp. 'find first cell phone and introduced to the public on April 3, 1973. Phones that found by Cooper has a weight of 30 ounces or about 800 grams. This invention has changed the world forever. The technology used 1-G is still analog and is known as AMPS. AMPS uses frequency between 825 Mhz-894 Mhz and operated at 800 Mhz. Because it is analog, then the system used is still regional. One drawback of generation 1-G is because the size is too large to be held by hand. Their large size is because the purposes of power and poor battery performance. In addition, generation 1-G still has a problem with user mobility. During the call, the user mobility is limited to coverage area of cellular phones.
Generation IIThe second generation or 2-G appears at around the 1990's. 2G in the U.S. already use CDMA technology, whereas in Europe use GSM technology. Uses standard GSM frequency 900 Mhz and 1800 Mhz frequencies. With these frequencies, GSM has a larger customer capacity. In 2G generation analog signal has been replaced with digital signals. The use of digital signals to equip mobile phones with voice mail, call waiting, and SMS. The phone in this generation also has a smaller size and lighter because of the use of digital chip technology. The smaller size is also due to the need for a smaller battery power. Advantages of 2G generation is the size and weight of the smaller and lower radio signals, thus reducing the radiation effect membayakan users.
Generation IIIThis generation is also called 3G that enables network operators to give their users a wider range, including the internet as well as high tech video calls. In 3G there are 3 standard for the telecommunications world that Enhance Datarates for GSM Evolution (EDGE), Wideband-CDMA, and CDMA 2000. The downside of this is the 3G generation relater higher costs, and lack of network coverage because this technology is still new.
Generation IVThis generation is also called Fourt Generation (4G). 4G is a mobile system that offers a new approach and infrastructure solutions that integrate the existing wireless technologies including wireless broadband (WiBro), 802.16e, CDMA, wireless LAN, Bluetooth, dlll. 4G systems based on the heterogeneity of IP networks that allow users to use a variety of systems anytime and anywhere. 4G also provides users with high speed, high volume, good quality, global reach, and flexibility to separately explore the various different technologies. Finally, 4G provides fast data transmission service to accommodate a variety of applications such as multimedia, video conferencing, online gaming, and more.
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Before companies make use of mobile technology, they use a 1800 Number. Now, with mobile communication evolving, companies already resort to mobile communication to their advantage.
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