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NAME :
PUTRA RADITYA PRADANA
CLASS :
XI SCIENCE 4 (XI A 4)
LESSON :
ENGLISH
HANDPHONE
Assalamualaikum
wr.wb
Good morning ladies and gentleman,
now I’ll report to you about handphone. Because handphone is one of electronic
thing can help people for job, fun, communication, and others. So, I choose
this title because I want to share this information for you. Okey, let’s begin
it.
Handphone is the technology that is appear
in 1970 beginning with the use of microprocessors for communication technology.
And in 1971, opened the first mobile phone network in Finland called ARP.
Following NMT in Scandinavia in 1981 and AMPS in 1983.
On the other hand, the increasing number of customers can’t be
accommodated first generation. Furthermore, the technology can only serve 1G
voice communications, unlike 2G can be used for SMS. NMT or Nordic Mobile
Telephone is the analog mobile phone network was first used internationally in
Northern Europe. This network operates on the 450 MHz frequency so often
referred to NMT-450, there is also the NMT-900 operating at 900 MHz.
Given the demands of the market and the need for better quality,
technology born second generation, or 2G. This generation is already using
digital technology. Another 2G IS-95 CDMA, IS-136 TDMA and PDC. The second
generation not only used for voice communication, SMS, and also be able to
transfer data at a maximum speed of 9,600 bps (bits per second). For
comparison, the widely used modem for Internet connection speed 56,000 bps (5.6
kbps).
Excess 2G than 1G in addition to better service, in terms of
capacity is also greater. Due to the 2G, the frequency can be used multiple
customers using a mechanism Time Division Multiple Access (TDMA).
After 2G, 2.5 G was born generation which is a better version of
the second generation. 2.5 This generation has the ability to transfer data
faster. The famous of this generation is GPRS (General Packet Radio Service)
and EDGE.
3rd generation or 3G is the latest technology in the mobile
world. This generation is better known as UMTS (Universal Mobile
Telecommunication System) or WCDMA (Wideband - Coded Division Multiple Access).
Excess generation is located at data transfer speeds up to 384 kbps outdoors
and 2 Mbps for indoor applications.
That’s a little information can I give to you. If I have many
wrong word, please forgive me. And hopefully this information can give the new
knowledge for all. Thank you for your time and your attention. See you next
time...
Wassalamualaikum
wr.wb
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