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An Internet service provider (ISP, also called Internet access provider or IAP) is a company or business that provides access to the Internet and related services. In the past, most ISPs were run by the phone companies. Now, ISPs can be started by just about any individual or group with sufficient money and expertise. In addition to Internet access via various technologies such as dial-up and digital subscriber line (DSL), they may provide a combination of services including Internet transit, domain name registration and hosting, web hosting, and colocation.

ISP can from your web hosting company, internet services company, telephone company.

All them give you oppurtuniy to surf and do something through internet.

They will create and build up network connection.

All technologies like WIMAX, 3G, Edge, GPRS, broadband and more.

Internet service provider for country is not only one company but many more company will invest in ISP industry if they growth time by time.

I found this CDSS acronym to CLinical decision support system.

Very interesting subject to me.

What is definition?

Clinical (or diagnostic) decision support systems (CDSS) are interactive computer programs, which are designed to assist physicians and other health professionals with decision making tasks. A working definition has been proposed by Dr. Robert Hayward of the Centre for Health Evidence; “Clinical Decision Support systems link health observations with health knowledge to influence health choices by clinicians for improved health care”. This definition has the advantage of simplifying Clinical Decision Support to a functional concept.

The basic components of a CDSS include a dynamic (medical) knowledge base and an inferencing mechanism (usually a set of rules derived from the experts and evidence-based medicine) and implemented through medical logic modules based on a language such as Arden syntax. It could be based on Expert systems or artificial neural networks or both

Wikipedia…

Check this important resources website:

http://www.openclinical.org

In software engineering, a Web application is an application that is accessed via Web browser over a network such as the Internet or an intranet. It is also a computer software application that is coded in a browser-supported language (such as HTML, JavaScript, Java, etc.) and reliant on a common web browser to render the application executable.

Web applications are popular due to the ubiquity of a client, sometimes called a thin client. The ability to update and maintain Web applications without distributing and installing software on potentially thousands of client computers is a key reason for their popularity. Common Web applications include Webmail, online retail sales, online auctions, wikis, discussion boards, Weblogs, MMORPGs and many other functions.

Our Example:

http://www.salesforce.com/products/

They run software from browser. All is access through internet. No need desktop application.

Comparisons and confusion between WiMAX and Wi-Fi are frequent, possibly because both begin with the same two letters, are based upon IEEE standards beginning with “802.”, and both have a connection to wireless connectivity and the Internet. Despite this, the two standards are aimed at different applications.

* WiMAX is a long-range system, covering many kilometers that typically uses licensed spectrum (although it is also possible to use unlicensed spectrum) to deliver a point-to-point connection to the Internet from an ISP to an end user. Different 802.16 standards provide different types of access, from mobile (similar to data access via a cellphone) to fixed (an alternative to wired access, where the end user’s wireless termination point is fixed in location.)
* Wi-Fi is a shorter range system, typically hundreds of meters, that uses unlicensed spectrum to provide access to a network, typically covering only the network operator’s own property. Typically Wi-Fi is used by an end user to access their own network, which may or may not be connected to the Internet. If WiMAX provides services analogous to a cellphone, Wi-Fi is more analogous to a cordless phone.
* WiMAX and Wi-Fi have quite different Quality of Service (QoS) mechanisms. WiMAX uses a mechanism based on setting up connections between the Base Station and the user device. Each connection is based on specific scheduling algorithms, which means that QoS parameters can be guaranteed for each flow. Wi-Fi has introduced a QoS mechanism similar to fixed Ethernet, where packets can receive different priorities based on their tags. This means that QoS is relative between packets/flows, as opposed to guaranteed.
* WiMAX is highly scalable from what are called “femto”-scale remote stations to multi-sector ‘maxi’ scale base that handle complex tasks of management and mobile handoff functions and include MIMO-AAS smart antenna subsystems.

Due to the ease and low cost with which Wi-Fi can be deployed, it is sometimes used to provide Internet access to third parties within a single room or building available to the provider, often informally, and sometimes as part of a business relationship. For example, many coffee shops, hotels, and transportation hubs contain Wi-Fi access points providing access to the Internet for customers.

Wikipedia