We still remember the first mobile phone is an expensive item, probably just some people who have cell phones. From mobile phones to as thin brick for a notebook. Of which only exist until the touch screen buttons. Not feel technology has led to the civilization and social development, once one can only talk with face to face until now people can talk face to face even with a great distance. This is the impact of technological advances. The history of telecommunications began in the decade of the 70s developed countries in Europe implement mobile technology for communication. In Indonesia alone implement sophisticated new communications technology is a dozen years later. Starting in 1984 the first cellular technology presence in Indonesia with technology-based Nordic Mobile Telephone (NMT).
In the years 1985-1992 the phone began to circulate in Indonesia, but can not enter into a shirt or pants pocket because of its large and long, with an average weight of 430gram (nearly half a kilogram). The price of cell phone is also not cheap, ranging above 10 million per unit.Di this year also known for two new cellular technology that is NMT-470, NMT-450 modifications.
In late 1993 PT Telkom launch a pilot project of digital cellular Global System for Mobile (GSM), began in the two islands, namely Pulau Batam and Bintan Island. In 1994 PT Satelit Palapa Indonesia (Satelindo) operates as the first GSM operator in Indonesia, by starting its operations in Jakarta and sekitarnya.Karena GSM uses a SIM card, then it is secure from copying and tapping as well as excellent quality and extensive coverage.
Telkom 1995 project in Batam was successful and proceed to the provinces in Sumatra, and then make Telkomsel on 26 May 1995 as a joint national GSM operator in the Year 1996 Satelindo.Kemudian Telkomsel with her Hello card product success in Medan, Surabaya, Bandung , and Denpasar, then enter the end of 1996 Jakarta.Di this addition, PT.Excelcomindo Pratama (Excelcom) GSM-based operations in Jakarta as the third GSM operator in Indonesia.Setelah it in 1998 Excelcom launched a prepaid card that gives Pro-XL alternative for consumers to choose with care roaming.Satelindo Telkomsel and Excelcom followed by launching a prepaid card sun, with the advantages of rates are calculated per second, so that in a short time to capture more subscribers 100.00.
Short messaging services, starting in introduced in 2000, and became a phenomenon among cell phone users, because it is very practical and inexpensive biayanya.Di this year Indosat and PT Telkom is also licensed as an operator GSM 1800 cellular nasional.Layanan both state that then operate on Aug. 1, the new telecommunications 2001.Babak year continues in 2003, namely with the presence of Telkom Flexi, which carry the CDMA 2000 1X technology, then behind Flexi any of Bakrie Telecom's Esia, Fren and Hepi from Mobile8, Star One from Indosat , Smart from Lippo Telecom, and the last Cheers from Sampoerna Telecom.
Then mobile phones into Indonesia is also in line with the development of cellular operator2 mentioned atas.Kehadiran mobile phones in Indonesia starting from the second generation (according to my knowledge), until the fourth generation (which is now being circulated in the market). Here's a brief review about the generation of these phones:
Generation mobile phones is also commonly referred to 2G comes in mid-1990-an.Beroperasi on the GSM network using standard frequency of 900 Mhz and 1800 frequency analog signals Mhz.Pada this generation has been the change to digital signal digital.Penggunaan signal equip mobile phones with voice mail, call waiting and SMS.
Generation mobile phone is also known as 3G, its features is to enable network operators to provide mobile users have a wider range, including the internet and 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 the 3G generation is a relatively higher cost, and lack of network coverage because this technology is still new.
The phone is also called 4G.4G generai a phone system that offers a new chapter and infrastructure solutions that integrate the existing wireless technologies including wireless broadband (WiBro), CDMA, wireless LAN, Bluetooth, dll.Sistem 4G IP network based on diversity, which enables 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.
Hopefully this information useful for you ..!!!
Quoted from KOMPASIANA