All About The Internet: Infrastructure Infrastructure description Computer Networking: Global Infrastructure for the 21st Century By Vint Cerf Administration The overall responsibility for managing Internet Protocol address or domain names at upper levels is vested in the Internet Assigned Numbers Authority (IANA), which delegates the actual administration of most functions to other bodies. At global regional levels, the principal bodies providing allocation and registration services that support the operation of the Internet globally are: RIPE NCC (Réseaux IP Européens Network Coordination Centre) ARIN (American Registry for Internet Numbers) APNIC (Asia Pacific Network Information Centre) LACNIC (Latin American and Caribbean IP address Regional Registry) AfriNIC (African Regional Registry for Internet Number Resources) Internet Operations American Registry for Internet Numbers Manages the Internet numbering resources for North America, a portion of the Caribbean, and sub-equatorial Africa. Internet Security Internet Connectivity
Application software Application software is all the computer software that causes a computer to perform useful tasks beyond the running of the computer itself. A specific instance of such software is called a software application, application program, application or app.[1] The term is used to contrast such software with system software, which manages and integrates a computer's capabilities but does not directly perform tasks that benefit the user. The system software serves the application, which in turn serves the user. Application software applies the power of a particular computing platform or system software to a particular purpose. Terminology[edit] In information technology, an application is a computer program designed to help people perform an activity. Application software classification[edit] There are many different ways to divide up different types of application software, and several are explained here. There are many types of application software: Information worker software[edit] See also[edit]
Machine learning Machine learning is a subfield of computer science[1] that evolved from the study of pattern recognition and computational learning theory in artificial intelligence.[1] Machine learning explores the construction and study of algorithms that can learn from and make predictions on data.[2] Such algorithms operate by building a model from example inputs in order to make data-driven predictions or decisions,[3]:2 rather than following strictly static program instructions. Machine learning is closely related to and often overlaps with computational statistics; a discipline that also specializes in prediction-making. It has strong ties to mathematical optimization, which deliver methods, theory and application domains to the field. Machine learning is employed in a range of computing tasks where designing and programming explicit, rule-based algorithms is infeasible. Example applications include spam filtering, optical character recognition (OCR),[4] search engines and computer vision.
Writing Writing with a pen Writing is a medium of communication that represents language through the inscription of signs and symbols. In most languages, writing is a complement to speech or spoken language. Writing is not a language but a form of technology. As human societies emerged, the development of writing was driven by pragmatic exigencies such as exchanging information, maintaining financial accounts, codifying laws and recording history. Means for recording information[edit] H.G. Writing systems[edit] The major writing systems – methods of inscription – broadly fall into four categories: logographic, syllabic, alphabetic, and featural. Logographies[edit] A logogram is a written character which represents a word or morpheme. The main logographic system in use today is Chinese characters, used with some modification for various languages of China, and Japanese. Syllabaries[edit] A syllabary is a set of written symbols that represent (or approximate) syllables. Alphabets[edit] Abjads[edit]
20 Websites To Download Free EBooks (Part III) And we’re back with Part 3! Yes, the world still loves books, no matter what version they are in: printed or electronic. Some of us prefer them in ebook version simply because they are so easy to locate, download and store for future reading and reference. In this list you can download free ebooks that range from Romance to Horror, Sci-fi to Historical Fiction. They are also available in PDF, text, doc and the crowd’s favorite ePub version. Read Also: Best Websites To Download Free EBooks – Part I & Part II 1. Kobo has over 1 million free eBooks. 2. Find free ebooks in NOOK books and apps format, provided by Barnes and Nobles. 3. Find an amazing array of free Microsoft eBooks brought together to one single place. 4. eBookMall Many of the free eBooks here are only free for a limited time, mostly as special promotions, so download them while they are still available. 5. Find over 350 ebooks with great works of fiction, non-fiction and poetry for free. 6. eBook Junkie 7. eBooksFree 8. 9. 10.
How Internet Infrastructure Works" One of the greatest things about the Internet is that nobody really owns it. It is a global collection of networks, both big and small. These networks connect together in many different ways to form the single entity that we know as the Internet. In fact, the very name comes from this idea of interconnected networks. Since its beginning in 1969, the Internet has grown from four host computer systems to tens of millions. In this article, you will learn about the basic underlying structure of the Internet.
Linux Linux ( History[edit] Antecedents[edit] With AT&T being required to license the operating system's source code to anyone who asked (due to an earlier antitrust case forbidding them from entering the computer business),[23] Unix grew quickly and became widely adopted by academic institutions and businesses. In 1984, AT&T divested itself of Bell Labs. Linus Torvalds has said that if the GNU kernel had been available at the time (1991), he would not have decided to write his own.[26] Although not released until 1992 due to legal complications, development of 386BSD, from which NetBSD, OpenBSD and FreeBSD descended, predated that of Linux. MINIX, initially released in 1987, is an inexpensive minimal Unix-like operating system, designed for education in computer science, written by Andrew S. Creation[edit] In 1991, while attending the University of Helsinki, Torvalds became curious about operating systems[28] and frustrated by the licensing of MINIX, which limited it to educational use only.
Data mining Process of extracting and discovering patterns in large data sets Data mining is the process of extracting and discovering patterns in large data sets involving methods at the intersection of machine learning, statistics, and database systems.[1] Data mining is an interdisciplinary subfield of computer science and statistics with an overall goal of extracting information (with intelligent methods) from a data set and transforming the information into a comprehensible structure for further use.[1][2][3][4] Data mining is the analysis step of the "knowledge discovery in databases" process, or KDD.[5] Aside from the raw analysis step, it also involves database and data management aspects, data pre-processing, model and inference considerations, interestingness metrics, complexity considerations, post-processing of discovered structures, visualization, and online updating.[1] Etymology[edit] Background[edit] The manual extraction of patterns from data has occurred for centuries. Process[edit]
Religion Religious activities around the world Many religions may have organized behaviors, clergy, a definition of what constitutes adherence or membership, holy places, and scriptures. The practice of a religion may include rituals, sermons, commemoration or veneration (of a deity, gods or goddesses), sacrifices, festivals, feasts, trance, initiations, funerary services, matrimonial services, meditation, prayer, music, art, dance, public service or other aspects of human culture. Religions may also contain mythology.[2] Etymology Religion (from O.Fr. religion "religious community," from L. religionem (nom. religio) "respect for what is sacred, reverence for the gods,"[11] "obligation, the bond between man and the gods"[12]) is derived from the Latin religiō, the ultimate origins of which are obscure. Many languages have words that can be translated as "religion", but they may use them in a very different way, and some have no word for religion at all. Definitions Theories Origins and development
DRI: How Does The Internet Work? Introduction The Internet is a global network of computers which allows people to exchange data worldwide instantaneously. This simple sentence is the most accurate way to summarize the definition of "Internet," but it does not do justice to the phenomenal technology behind the Internet. The Internet spreads across all seven continents and includes computers that range from 35 year-old mainframes to modern home PCs to handheld devices. This Web site has been developed to provide a simple, "layman's" explanation of the unifying technology of the Internet. Part One: Basic Computing/Networking Concepts
Music This article is about music as a form of art. For history see articles for History of music and Music history. The creation, performance, significance, and even the definition of music vary according to culture and social context. To many people in many cultures, music is an important part of their way of life. Etymology The word derives from Greek μουσική (mousike; "art of the Muses").[4] Music as form of art Jean-Gabriel Ferlan performing at a 2008 concert at the collège-lycée Saint-François Xavier Music is composed and performed for many purposes, ranging from aesthetic pleasure, religious or ceremonial purposes, or as an entertainment product for the marketplace. There are often many links between amateur and professional musicians. Composition "Composition" is often classed as the creation and recording of music via a medium by which others can interpret it (i.e., paper or sound). Music can be composed for repeated performance or it can be improvised: composed on the spot. Notation Play
Computer science Computer science deals with the theoretical foundations of information and computation, together with practical techniques for the implementation and application of these foundations History[edit] The earliest foundations of what would become computer science predate the invention of the modern digital computer. Blaise Pascal designed and constructed the first working mechanical calculator, Pascal's calculator, in 1642.[3] In 1673 Gottfried Leibniz demonstrated a digital mechanical calculator, called the 'Stepped Reckoner'.[4] He may be considered the first computer scientist and information theorist, for, among other reasons, documenting the binary number system. Although many initially believed it was impossible that computers themselves could actually be a scientific field of study, in the late fifties it gradually became accepted among the greater academic population.[15][16] It is the now well-known IBM brand that formed part of the computer science revolution during this time. Misc
Mail Postal wagons at the postal sorting facility in Sion, Switzerland. Mail between regional cities is transported by rail, to be delivered by postal bus, vans and cycles at a local level. Postal authorities often have functions other than transporting letters. In some countries, a Postal Telegraph and Telephone (PTT) service oversees the postal system as well as having authority over telephone and telegraph systems. Some countries' postal systems allow for savings accounts and handle applications for passports. Etymology[edit] The word mail comes from the Medieval English word male, referring to a traveling bag or pack.[2] It was spelled that way until the 17th century, and is distinct from the word male. History[edit] Many early post systems consisted of fixed courier routes. The practice of communication by written documents carried by an intermediary from one person or place to another almost certainly dates back nearly to the invention of writing. Persia[edit] India[edit] China[edit]