International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B6. Istanbul 2004
2007 there will be more than 1400 millions, with 56% of
wireless users [CTIA].
Number of Internet hosts
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Figure 12: Internet growth represented by the number of users
online. Source [ISC, NUA ].
Internet Hosts and Users
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Figure 13: Number of Internet users compared to number of
Internet hosts. Source: [ISC, NUA].
Comparing the number of users and host (Figure 13), in 2003
there was an average of 4.2 users per host. With the high
quality of service in the United States, there are approximately
1,5 Internet users per host, whereas in some developing there
are more than 100 Internet users per host!
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Figure 14: Geographic distribution of Internet routers (device to
forward data along networks) against the global distribution of
population as in 2001 [Yook, S. et al., 2001].
Despite these number which are just great estimates of the real
values, it is widely expected that the Internet population and the
number of domains will continue to growth, at least for other
few years. But the presence and the access to the Internet is not
well distributed in all the country (Figure 14 and Figure 15). As
reported by Nua [NUA], the top 10 countries account more than
80% of the world-wide population; moreover, as shown in
Table 2, there are country with 0.01% of the country population
who has an Internet access while there are European country
with more that 60%.
Max % Min %
Africa 11.2 % (Seychelles) 0.01% (Liberia, Congo)
Asia 59.5% (Hong Kong) 0.11% (Bangladesh)
Pacific 54.8% (Australia) 2.58% (Vanuatu)
Europe 69.8% (Island) 0.34% (Albania)
Middle East 36.8% (UAE) 0.05% (Iraq)
Canada & USA 59.1% (USA) 39.7% (Bermuda)
Latin America 34.1% (Aruba Island) 0.42% (Haiti)
Table 2: Percentage of users online according to the different
parts of the world. Source: [NUA].
Online users worldwide
EUROPA
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n PACIFIC
MIDDLE EAST ;
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USA & CANADA _
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LATIN AMERICA
6%
Figure 15: World-wide online population. Source: [NUA ].
Considering the demographics of the Internet users, dilTerent
sources report an average age of the users around 38 years old,
with a percentage of female users of 35% and male users of
65%. Furthermore, the Internet usage habits state that 93% of
the users use a web browser more than once a day, for personal
information (75%), work (65%), education (60%), shopping
(50%), while 28% of the users buy online once a month.
Moreover, 35.8% of the online population has English as native
language, 14.1% Chinese, 9.6 Japanese and 9% Spanish [GR].
Considering the content of the web sites (Figure 16), English
language is the most used (72%), followed by German (7%)
and Japanese (6%) [OCLC].
Languages used to express the
content of a web site
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2% 2% Spanish
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French =
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Spanish |
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Japanese y |
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72%
German
795
Figure 16: Languages used in the web sites. Source: [OCLC].
2.11 The SPAM messages
“In a single day of May 2003, No. 1 Internet service provider
AOL Time Warner (AOL) blocked 2 billion spam messages
from hitting its customers’ e-mail accounts. Microsoft (MSFT),
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