How does the internet work? 3/10/10 Internet User in Thailand

How Many Internet user in Thailand?

As of 2008, there were 16,100,000 Internet users in Thailand.^[1]
Broadband Internet is readily available in major cities and towns, but is still to be sought after in smaller villages and in the countryside. As the statistics have shown, the majority of Internet users in Thailand still rely on dial-up access. TOT operates a nationwide local rate number, 1222, allowing dialing to most Internet service providers. Dial-up prepaid Internet packs can be readily bought in convenience stores and other places. Subscribers of fixed telephone lines by True Corporation have access to dial up Internet by dialing a certain number and then being billed on their normal telephone bill.
The majority of broadband Internet access uses Asymmetric Digital Subscriber Line (ADSL). Some areas are covered by Cable Modems and G.shdsl. Consumer broadband Internet bandwidth ranges from 2 Mbit/s to 16 Mbit/s. Medium and large businesses use Leased Lines or Ethernet Internet/MPLS where fiber optic cables link many office buildings in the central business district areas such as Sukhumvit, Silom and Sathorn areas to the Thailand Internet backbone. Universities have access to fast Internet access, including the Trans-Eurasia Information Network (TEIN2) research network.
A 3G UMTS/HSDPA network was launched in Bangkok and vicinity in December 2009 with speeds up to 7.2 Mbit/s on the 2100 MHz band. Major mobile network operators in Thailand are testing their 3G networks in limited urban areas on the 850 MHz and 900 MHz bands. The National Telecommunications Commission (NTC) has plans to auction out 4 further licenses to operate 3G UMTS/HSDPA networks on the 2100 MHz spectrum in 2010. A 3G CDMA network with speeds up to 3.1Mbit/s is available in 51 provinces nationwide.
There are initiatives to offer mainstream FTTH (Fiber to the Home) providing bandwidth of up to 100 Mbit/s bundled with IPTV and VoIP. FTTH with speeds up to 30mbps is available in limited areas in Phuket.
Thailand saw a rapid growth in the number of broadband users in 2005 with the initiation of unmetered broadband in 2004.^[2]
There are 1,116,000 (2008) Internet hosts in Thailand being the highest in South East Asia.^[3]
Source

How Does the Internet Work? 4/10/10

What is the Internet?

The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite (TCP/IP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic and optical networking technologies. The Internet carries a vast range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail

Source

What is Internet Protocol (IP Address)?

The Internet Protocol (IP) is the principal communications protocol used for relaying datagrams (packets) across an internetwork using the Internet Protocol Suite. Responsible for routing packets across network boundaries, it is the primary protocol that establishes the Internet.
IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering datagrams from the source host to the destination host solely based on their addresses. For this purpose, IP defines addressing methods and structures for datagram encapsulation.

Source

What is the OSI model?

The Open Systems Interconnection model (OSI model) is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a way of sub-dividing a communications system into smaller parts called layers. A layer is a collection of conceptually similar functions that provide services to the layer above it and receives services from the layer below it. On each layer an instance provides services to the instances at the layer above and requests service from the layer below.
For example, a layer that provides error-free communications across a network provides the path needed by applications above it, while it calls the next lower layer to send and receive packets that make up the contents of the path. Conceptually two instances at one layer are connected by a horizontal protocol connection on that layer.

Source

What is internet infrastructure?

With the growth of the Internet for personal use (e.g. Facebook, Amazon, Google, Gmail) and business purposes (i.e.file storage, web applications, collaboration and communication, VOIP) I thought it would be useful to talk about what actually powers all these things. I have a secondary reason for this too – when a non-technical person asks me what I do for a living, I have yet to come up with a short simple answer that actually explains it!

First of all, let me define what I mean by ‘Internet Infrastructure’. All the hardware and services required to make this web page appear in your browser, or an RSS feed download into your reader, or VOIP calls / emails get to your desktop. All the underlying technologies that are unseen, but ‘make the Internet go’.

I see Internet Infrastructure consisting of a ‘Top 5′ areas :

• Data Centres
• Network Connectivity
• Computer Equipment
• Storage Services
• Server Applications

Source

What is domain name?

A domain name is an identification label that defines a realm of administrative autonomy, authority, or control on the Internet, based on the Domain Name System (DNS).
Domain names are used in various networking contexts and application-specific naming and addressing purposes. They are organized in subordinate levels (subdomains) of the DNS root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, net and org, and the country code top-level domains (ccTLDs). Below these top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users that wish to connect local area networks to the Internet, run web sites, or create other publicly accessible Internet resources. The registration of these domain names is usually administered by domain name registrars who sell their servic

Source