background preloader

Information technology

Information technology
Information technology (IT) is the application of computers and telecommunications equipment to store, retrieve, transmit and manipulate data,[1] often in the context of a business or other enterprise.[2] The term is commonly used as a synonym for computers and computer networks, but it also encompasses other information distribution technologies such as television and telephones. Several industries are associated with information technology, including computer hardware, software, electronics, semiconductors, internet, telecom equipment, e-commerce and computer services.[3][a] Humans have been storing, retrieving, manipulating and communicating information since the Sumerians in Mesopotamia developed writing in about 3000 BC,[5] but the term information technology in its modern sense first appeared in a 1958 article published in the Harvard Business Review; authors Harold J. Leavitt and Thomas L. Whisler commented that "the new technology does not yet have a single established name.

HERMES Hermes is the divine messenger of the Olympian gods in Greek mythologyHermes Trismegistus ("Hermes the thrice-greatest"), the Greek name for the Egyptian god Thoth Hermes can also refer to: Hermès, a Paris-based, high-fashion luxury-goods manufacturerHermes cover, a German export credit-guarantee schemeEFG-Hermes Holding Company, an Egyptian financial groupHermes Abrasives, a German-based abrasive manufacturer HERMES may mean: HERMES experiment, a fixed target experiment at HERAHERMES method, a general project management method developed by the Swiss governmentHERMES Project, or the Hotspot Ecosystems Research on the Margins of European Seas the Tricorder project - Science Tricorder Mark 2 The Science Tricorder Mark 2 was a wonderful adventure of discovery to develop. It's my pleasure to be able to share it with you. To introduce you to the Tricorder project, I'd like to begin with a story from the development of the very first Tricorder that I built. The first educational discoveries with the Tricorder came only moments after completing it, and walking about the workshop to "see what can't be seen". More educational discoveries came quickly — from finding all the heat leaks from different building materials in my graduate student apartment in a century home, to how much humidity is exhaled in a breath. Again, it is my pleasure to be able to share this with you. Sensors The Science Tricorder Mark 2 prototype sensor board contains ten different sensing modalities, organized into three main categories: atmospheric sensors, electromagnetic sensors, and spatial sensors. Sensiron SHT11 Atmospheric Temperature and Humidity 0 to 100% RH, ± 3% accuracy ± 0.1% repeatability

Human–computer interaction A woman teaching girls in Afghanistan how to use computers. Human use of computers is a major focus of the field of HCI. Because human–computer interaction studies a human and a machine in conjunction, it draws from supporting knowledge on both the machine and the human side. Poorly designed human-machine interfaces can lead to many unexpected problems. HCI Goals[edit] HCI (Human Computer Interaction) aims to improve the interactions between users and computers by making computers more usable and receptive to users' needs. A long term goal of HCI is to design systems that minimize the barrier between the human's mental model of what they want to accomplish and the computer's understanding of the user's task. Professional practitioners in HCI are usually designers concerned with the practical application of design methodologies to real-world problems. Differences with related fields[edit] Three areas of study have substantial overlap with HCI even as the focus of inquiry shifts. 1. 2. 3.

OTHER GODS The most enduring of H.P. Lovecraft's literary characters, Cthulhu first appeared in Weird Tales in 1928. Great Old Ones[edit] An ongoing theme in Lovecraft's work is the complete irrelevance of mankind in the face of the cosmic horrors that apparently exist in the universe, with Lovecraft constantly referring to the "Great Old Ones": a loose pantheon of ancient, powerful deities from space who once ruled the Earth and who have since fallen into a deathlike sleep.[3] Lovecraft named several of these deities, including Azathoth, Cthulhu, Ghatanothoa, Shub-Niggurath, Yog-Sothoth, Nyarlathotep and Yig. Table of Great Old Ones[edit] This table is organized as follows: In Joseph S. Outer Gods[edit] The Outer Gods are ruled by Azathoth, the "Blind Idiot God", who holds court at the center of the universe. List of Outer Gods[edit] Abhoth[edit] See Clark Ashton Smith deities. Aiueb Gnshal[edit] Azathoth[edit] See Azathoth. Azhorra-Tha[edit] The Blackness from the Stars[edit] The Cloud-Thing[edit]

Wikipedia’s Next Big Thing: Wikidata, A Machine-Readable, User-Editable Database Funded By Google, Paul Allen And Others Wikidata, the first new project to emerge from the Wikimedia Foundation since 2006, is now beginning development. The organization, known best for its user-edited encyclopedia of knowledge Wikipedia, recently announced the new project at February’s Semantic Tech & Business Conference in Berlin, describing Wikidata as new effort to provide a database of knowledge that can be read and edited by humans and machines alike. There have been other attempts at creating a semantic database built from Wikipedia’s data before – for example, DBpedia, a community effort to extract structured content from Wikipedia and make it available online. The project’s goal in developing a semantic, machine-readable database doesn’t just help push the web forward, it also helps Wikipedia itself. Wikidata will also enable users to ask different types of questions, like which of the world’s ten largest cities have a female mayor? Below, an early concept for Wikidata: Dr.

Object-oriented programming - Wikipedia, the free encyclopedia - (Current Session: 1) Overview[edit] Rather than structure programs as code and data, an object-oriented system integrates the two using the concept of an "object". An object has state (data) and behavior (code). Objects correspond to things found in the real world. So for example, a graphics program will have objects such as circle, square, menu. The goals of object-oriented programming are: Increased understanding.Ease of maintenance.Ease of evolution. The overall understanding of the system is increased because the semantic gap—the distance between the language spoken by developers and that spoken by users—is lessened. Object-orientation takes this to the next step. In addition to providing ease of maintenance, encapsulation and information hiding provide ease of evolution as well. An object-oriented program usually contains different types of objects, each corresponding to a real-world object or concept such as a bank account, a hockey player, or a bulldozer. History[edit] A survey by Deborah J.

HERA Portrayed as majestic and solemn, often enthroned, and crowned with the polos (a high cylindrical crown worn by several of the Great Goddesses), Hera may bear a pomegranate in her hand, emblem of fertile blood and death and a substitute for the narcotic capsule of the opium poppy.[2] A scholar of Greek mythology Walter Burkert writes in Greek Religion, "Nevertheless, there are memories of an earlier aniconic representation, as a pillar in Argos and as a plank in Samos."[3] Etymology[edit] The cult of Hera[edit] Hera may have been the first to whom the Greeks dedicated an enclosed roofed temple sanctuary, at Samos about 800 BC. We know that the temple created by the Rhoecus sculptors and architects was destroyed between 570- 60 BC. In Euboea the festival of the Great Daedala, sacred to Hera, was celebrated on a sixty-year cycle. Hera's early importance[edit] According to Walter Burkert, both Hera and Demeter have many characteristic attributes of pre-Greek Great Goddesses.[15] Epithets[edit]

The Cloud Will Cure Cancer Editor’s note: Mark Kaganovich is founder of SolveBio and a doctoral candidate in genetics at Stanford University. Follow him on Twitter @markkaganovich. Much ink has been spilled on the huge leaps in communications, social networking, and commerce that have resulted from impressive gains in IT and processing power over the last 30 years. Understanding disease and how to treat it requires a deep knowledge of human biology and what goes wrong in diseased cells. New technology is changing research A major challenge thus far has been the difficulty in gaining access to clinical data. Developments in biotechnology over the last 10 years are painting a picture of how the new world of “Big Bio” might come into existence. Sequencing is one of many technologies experiencing a revolution in accuracy and scale. Correlation in the cloud The cloud will make data integration possible, useful, and fast as new types of data appear. Cancer research = Big Bio [image from Moneyball]

Acid3 Acid3 test is a web test page from the Web Standards Project that checks a web browser's compliance with elements of various web standards, particularly the Document Object Model (DOM) and JavaScript. Acid3 was in development from April 2007,[1] and released on 3 March 2008.[2] The main developer was Ian Hickson, a Google employee who also wrote the Acid2 test. Acid2 focused primarily on Cascading Style Sheets (CSS), but this third Acid test also focuses on technologies used on modern, highly interactive websites characteristic of Web 2.0, such as ECMAScript and DOM Level 2. A few subtests also concern Scalable Vector Graphics (SVG), Extensible Markup Language (XML), and data URIs. Controversially,[citation needed] it includes several elements from the CSS2 recommendation that were later removed in CSS2.1,[citation needed] but reintroduced in World Wide Web Consortium (W3C) CSS3 working drafts that have not made it to candidate recommendations yet. The test[edit] Detailed results[edit]

POSEIDON There is a Homeric hymn to Poseidon, who was the protector of many Hellenic cities, although he lost the contest for Athens to Athena. According to the references from Plato in his dialogue Timaeus and Critias, the island of Atlantis was the chosen domain of Poseidon.[4][5][6][7] Etymology The earliest attested occurrence of the name, written in Linear B, is 𐀡𐀮𐀆𐀃 Po-se-da-o or 𐀡𐀮𐀆𐀺𐀚 Po-se-da-wo-ne, which correspond to Poseidaōn and Poseidawonos in Mycenean Greek; in Homeric Greek it appears as Ποσειδάων (Poseidaōn); in Aeolic as Ποτειδάων (Poteidaōn); and in Doric as Ποτειδάν (Poteidan), Ποτειδάων (Poteidaōn), and Ποτειδᾶς (Poteidas).[8] A common epithet of Poseidon is Γαιήοχος Gaiēochos, "Earth-shaker," an epithet which is also identified in Linear B tablets. The origins of the name "Poseidon" are unclear. Bronze Age Greece Poseidon, Paella Museum Poseidon carries frequently the title wa-na-ka ( wanax) in Linear B inscriptions, as king of the underworld. Poseidon in mythology

Related: