Internet and search engines
The Internet is also known as the Information Highway, the Net, the Matrix, or the Web. The World Wide Web (WWW) is just one part of a user-friendly multimedia Internet that connects documents, images, and other resources linked with hyperlinks and URLs (Uniform Resource Locator).
The technology of the Internet is a publicly accessible computer network, which transmits data in the foil packet of a standard Internet Protocol (IP). The Internet is a network of networks, consisting of a multitude of local, academic, commercial, and governmental networks, which together provide information and services.
The Internet is a noun meaning a communication network connecting many different electronic technologies, which are interconnected and communicate with each other and can no longer exist on their own merits. Internet communication allows different users, such as online chat (IRC, ICQ, MSN Messenger), newsgroups (Usenet), electronic mail (e-mail), etc.
Today, some services, which were very popular in the past, are no longer valid. Today, we call the Internet the Second Generation Internet (Web 2.0), which is essentially a modern term, since many older, established sites were Web 2.0 from their inception (such as Amazon.com or Craigslist.org). The second generation of the Internet represents a different type of Internet use and not some technical and other improvements. The second generation of the Internet allows users to do more than just obtain information from existing documents. It is a network platform that allows users to use applications through their browser.
The users themselves are adding value to the websites with their contributions. Many popular websites also allow social networking. Due to the easier and more comfortable use of the Internet, more and more people want to publish content online. Very popular are blogs, Wikipedia, and sites like YouTube, MySpace, Facebook… Other popular services on the Internet are Internet telephony technology (Skype), and Peer to Peer or P2P.
In my thesis I will also touch on the term Web 3.0, which represents a hypothesis of how the World Wide Web could be in the future.
Libraries have a structured database, in which librarians manually enter new information (books and book information – metadata). Librarians know how to quickly find the book or books you are looking for on a specific topic. They can because they have a written abstract, keywords, of any book and the books are in the catalog after a certain specific key. Each book in the library is also manually reviewed and cataloged as needed, with book details.
Structured data is stored electronically, where each piece of information is attached to metadata. The data is stored in the data model so that the computer program can find it simply and effectively with mathematical and logical concepts.
Web search engines, unlike the library, are browsing and searching the Internet, which is an unstructured database and index (catalog) search engine is automatically updated.
The World Wide Web is a partially (semi)structured database, because data is semantically related to each other, similar content is partly related to each other, but contents are equally identified.
Unstructured data is data that is (usually) in electronic format and does not have the data model, or cannot be used by a computer program.