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Referatas apie telefonus (anglų kalba). Introduction. Development in the world. Development in Lithuania. Description of technic. Advantages. Disadvantages. Conclusion.

Ištrauka

There are four principal means by which an end user using a telephone handset may connect to a telephone network: a traditional fixed phone landline, which uses dedicated physical wire connections connected to a single location; wireless and radio telephones, which use either analog or digital radio signals; satellite telephones, which utilize telecommunications satellites; and voice over internet protocol telephones, which use broadband internet connections. Between end users, transmissions across a network may be carried by fiber optic cable, point to point microwave or satellite relay. Until relatively recently, a telephone generally referred only to landlines. Cordless and mobile phones are now common in many places around the world, with mobile phones expected to gradually displace the conventional landline telephone. Unlike a phone, a cordless telephone is considered to be landline because it is only useable within a short distance of a small personal or domestic base station connected to a fixed phone line. The aim is to ascertain advantages and disadvantages of phones, their evolution and new developments. Old and new – fashioned mobile phones. ...

Rašto darbo duomenys
Tinklalapyje paskelbta2006-05-24
DalykasAnglų kalbos referatas
KategorijaAnglų kalba
TipasReferatai
Apimtis8 puslapiai 
Literatūros šaltiniai6
KalbaAnglų kalba
Dydis12.18 KB
Autoriuswald
Viso autoriaus darbų2 darbai
Metai2006 m
Klasė/kursas1
Švietimo institucijaKauno Technologijos Universitetas
Failo pavadinimasMicrosoft Word Phone [speros.lt].doc
 

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Komentarai

  • 2007-05-30 IP: 89.190.109.71
    Donce sako

    Na darbas tikrai vertas dvieju litų, vien pravertė istoriniai faktai apie mobiliuosius telefonus. Ir ju privalumai bei trukūmai.

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  • Referatai
  • 8 puslapiai 
  • Kauno Technologijos Universitetas / 1 Klasė/kursas
  • 2006 m
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