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Quattro Secoli di Storia con oltre 1000 Immagini

Nasce il calcolo automatico
Herman Hollerith: il pioniere dell'elaborazione dei dati
Le macchine a schede perforate
I calcolatori elettromeccanici
Il primo calcolatore elettronico della storia

Gli elaboratori della 1a generazione
Gli elaboratori a transistor
La 3a generazione di elaboratori
Gli elaboratori degli anni settanta
Un protagonista del nostro tempo

Nasce il calcolo automatico
Le macchine a schede perforate
Uno strumento nuovo: l'elaboratore elettronico

Gli elaboratori della "1a generazione"
L'espansione dell'automazione
Un protagonista del nostro tempo

Lexicon - mobile - mobile

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mobile
846 mobile cellular telephones in use per 1000 capita
www.exxun.com/NewZealand/f_cm.html

mobile
... privatization of the formerly state-owned telecommunications company domestic: since privatization, access to fixed-line and mobile-cellular services has improved but teledensity still lags behind other Central American countries; connected to ...
www.exxun.com/Nicaragua/f_cm.html

mobile
... microwave radio relay links concentrated in the southwestern area of Niger domestic: combined fixed-line and mobile-cellular teledensity is less than 3 per 100 persons; domestic satellite system with 3 earth ...
www.exxun.com/Niger/f_cm.html

mobile
... the shortcomings of the fixed-line network; multiple service providers operate nationally; combined fixed-line and mobile-cellular teledensity reached 25 per 100 persons in 2006 international: country code - 234; landing point ...
www.exxun.com/Nigeria/f_cm.html

mobile
278 mobile cellular telephones in use per 1000 capita
www.exxun.com/Niue/f_cm.html

mobile
237 mobile cellular telephones in use per 1000 capita
www.exxun.com/NorthernMarianaIslands/f_cm.html

mobile
... a domestic satellite system; moreover, the prevalence of rural areas encourages the wide use of cellular-mobile systems instead of fixed-wire systems international: country code - 47; 2 buried coaxial cable systems ...
www.exxun.com/Norway/f_cm.html

mobile
... consisting of open-wire, microwave, and radiotelephone communication stations; limited coaxial cable domestic: fixed-line and mobile-cellular subscribership both increasing; open-wire, microwave, radiotelephone communications, and a domestic satellite system with ...
www.exxun.com/Oman/f_cm.html

mobile
... assessment: the telecommunications infrastructure is improving dramatically with foreign and domestic investments into fixed-line and mobile networks; mobile-cellular subscribership has skyrocketed, reaching some 63 million in mid-2007, up from ...
www.exxun.com/Pakistan/f_cm.html

mobile
48 mobile cellular telephones in use per 1000 capita
www.exxun.com/Palau/f_cm.html

mobile
general assessment: domestic and international facilities well developed domestic: combined fixed-line and mobile-cellular teledensity is approaching 70 per 100 persons international: country code - 507; landing point for the Americas Region ...
www.exxun.com/Panama/f_cm.html

mobile
... radio communication services domestic: access to telephone services is not widely available; combined fixed-line and mobile-cellular teledensity is less than 3 per 100 persons international: country code - 675; submarine cables ...
www.exxun.com/PapuaNewGuinea/f_cm.html

mobile
... state monopoly; deficiencies in provision of fixed-line service have resulted in a rapid expansion of mobile-cellular services fostered by competition among multiple providers international: country code - 595; satellite earth station ...
www.exxun.com/Paraguay/f_cm.html

mobile
... assessment: adequate for most requirements domestic: fixed-line teledensity is only about 8 per 100 persons; mobile-cellular teledensity, spurred by competition among multiple providers, has increased to about 30 telephones per ...
www.exxun.com/Peru/f_cm.html

mobile
... satellite system with 11 earth stations; cellular communications now dominate the industry; combined fixed-line and mobile-cellular telephone density exceeds 50 telephones per 100 persons with more than 10 mobile cellular ...
www.exxun.com/Philippines/f_cm.html

mobile
... dominated by the former state-owned company, is dwarfed by the growth in wireless telephony domestic: mobile-cellular service available since 1993 and provided by three nation-wide networks with a fourth ...
www.exxun.com/Poland/f_cm.html

mobile
1,146 mobile cellular telephones in use per 1000 capita
www.exxun.com/Portugal/f_cm.html

mobile
848 mobile cellular telephones in use per 1000 capita
www.exxun.com/PuertoRico/f_cm.html

mobile
general assessment: modern system centered in Doha domestic: combined fixed-line and mobile-cellular telephone density is roughly 130 telephones per 100 persons international: country code - 974; landing point for the Fiber ...
www.exxun.com/Qatar/f_cm.html

mobile
... liberalization in 2003 is transforming telecommunications; fixed-line teledensity is roughly 20 telephones per 100 persons; mobile-cellular teledensity is approaching 80 telephones per 100 persons international: country code - 40; the Black ...
www.exxun.com/Romania/f_cm.html

mobile
... made progress toward building the telecommunications infrastructure necessary for a market economy; the estimated number of mobile subscribers jumped from fewer than 1 million in 1998 to 150 million in 2006; a ...
www.exxun.com/Russia/f_cm.html

mobile
... telephone service; much of the network depends on wire and HF radiotelephone; combined fixed-line and mobile-cellular telephone density is only about 4 telephones per 100 persons international: country code - 250 ...
www.exxun.com/Rwanda/f_cm.html

mobile
253 mobile cellular telephones in use per 1000 capita
www.exxun.com/SaintKittsandNevis/f_cm.html

mobile
612 mobile cellular telephones in use per 1000 capita
www.exxun.com/SaintLucia/f_cm.html

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