April 2016
Intermediate to advanced
506 pages
15h 9m
English
A data service is something that is provided to the end user for a specific function, making use of a specific program (application program). Examples of data services include the Internet protocol (IP) telephony, web browsing, e-mail, file transfer, and so on. These services can be provided making use of a variety of application programs. For example, Microsoft Outlook, Microsoft Outlook Express, and Groupwise are three examples of specific application programs that can be used to have access to e-mail (service). Web browsing is also a service that can be accessed making use of Internet Explorer, Mozilla Firefox, Google Chrome, and so on.
The application program described above has a different meaning than the application ...