What is Network Monitoring? Webopedia Definition #network #monitoring #definition, #network #monitoring,


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network monitoring

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In network management terms, network monitoring is the phrase used to describe a system that continuously monitors a network and notifies a network administrator though messaging systems (usually e-mail ) when a device fails or an outage occurs. Network monitoring is usually performed through the use of software applications and tools.

At the most basic level, ping is a type of network monitoring tool. Other commercial software packages may include a network monitoring system that is designed to monitor an entire business or enterprise network.

Some applications are used to monitor traffic on your network, such as VoIP monitoring, video stream monitoring, mail server (POP3 server) monitoring, and others.

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13/09/2017

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Epinephrine chemical formula #drug, #encyclopedia, #encyclopaedia, #britannica, #article


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drug, any chemical substance that affects the functioning of living things and the organisms (such as bacteria. fungi. and viruses ) that infect them. Pharmacology. the science of drugs, deals with all aspects of drugs in medicine. including their mechanism of action, physical and chemical properties, metabolism. therapeutics. and toxicity. This article focuses on the principles of drug action and includes an overview of the different types of drugs that are used in the treatment and prevention of human diseases. For a discussion of the nonmedical use of drugs, see drug use .

Until the mid-19th century the approach to drug therapeutics was entirely empirical. This thinking changed when the mechanism of drug action began to be analyzed in physiological terms and when some of the first chemical analyses of naturally occurring drugs were performed. The end of the 19th century signaled the growth of the pharmaceutical industry and the production of the first synthetic drugs. Chemical synthesis has become the most important source of therapeutic drugs. A number of therapeutic proteins. including certain antibodies. have been developed through genetic engineering .

Drugs produce harmful as well as beneficial effects, and decisions about when and how to use them therapeutically always involve the balancing of benefits and risks. Drugs approved for human use are divided into those available only with a prescription and those that can be bought freely over the counter. The availability of drugs for medical use is regulated by law.

A pharmacist searching for the correct medication from a list behind the counter at a pharmacy.

Drug treatment is the most frequently used type of therapeutic intervention in medicine. Its power and versatility derive from the fact that the human body relies extensively on chemical communication systems to achieve integrated function between billions of separate cells. The body is therefore highly susceptible to the calculated chemical subversion of parts of this communication network that occurs when drugs are administered.

Principles of drug action

Types of drugs


24/08/2017

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What is Monitoring Software? Webopedia Definition #monitoring #software #definition, #web #browser,


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monitoring software

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Software for monitoring the desktop and online activities of employees, family members, roommates or other users of a computer. Sometimes referred to as parental control software, monitoring software can quietly monitor and log PC and online activities or more actively filter content and block offensive websites from being accessed.

It isn’t always easy to distinguish monitoring software from spyware. which is why at least one of the following criteria must be met in order for the installation of monitoring software to be considered legal:

  • The owner of the software must also be the owner of the computer it is going to be installed on
  • The owner of the software must be the parent of a minor child
  • The owner of the software must have the consent of all users of the monitored computer

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12/08/2017

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What is workflow? Webopedia Definition #workflow #definition, #workflow, #define, #define #workflow,


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workflow

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The defined series of tasks within an organization to produce a final outcome. Sophisticated workgroup computing applications allow you to define different workflows for different types of jobs. So, for example, in a publishing setting, a document might be automatically routed from writer to editor to proofreader to production. At each stage in the workflow, one individual or group is responsible for a specific task. Once the task is complete, the workflow software ensures that the individuals responsible for the next task are notified and receive the data they need to execute their stage of the process.

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05/08/2017

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What is Hosting Server? Webopedia Definition #hosting #server, #definition, #define, #what


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hosting server

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A server dedicated to hosting a service or services for users. Hosting servers are most often used for hosting Web sites but can also be used for hosting files, images, games and similar content. Hosting servers can be shared among many clients (shared hosting servers) or dedicated to a single client (dedicated servers), the latter of which is particularly common for larger Web sites where the hosting needs of the Web site owner necessitate more control and/or bandwidth.

See also “All About Web Site Hosting” in theDid You Know. sectionof Webopedia.

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05/08/2017

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Information system #information #system, #encyclopedia, #encyclopaedia, #britannica, #article


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Information system

Alternative Titles: information retrieval system, information storage and retrieval system, information storage system

information system, an integrated set of components for collecting, storing, and processing data and for providing information. knowledge, and digital products. Business firms and other organizations rely on information systems to carry out and manage their operations, interact with their customers and suppliers, and compete in the marketplace. Information systems are used to run interorganizational supply chains and electronic markets. For instance, corporations use information systems to process financial accounts, to manage their human resources, and to reach their potential customers with online promotions. Many major companies are built entirely around information systems. These include eBay. a largely auction marketplace; Amazon. an expanding electronic mall and provider of cloud computing services; Alibaba, a business-to-business e-marketplace; and Google. a search engine company that derives most of its revenue from keyword advertising on Internet searches. Governments deploy information systems to provide services cost-effectively to citizens. Digital goods—such as electronic books. video products, and software —and online services, such as gaming and social networking. are delivered with information systems. Individuals rely on information systems, generally Internet-based, for conducting much of their personal lives: for socializing, study, shopping, banking, and entertainment.

As major new technologies for recording and processing information were invented over the millennia, new capabilities appeared, and people became empowered. The invention of the printing press by Johannes Gutenberg in the mid-15th century and the invention of a mechanical calculator by Blaise Pascal in the 17th century are but two examples. These inventions led to a profound revolution in the ability to record, process, disseminate. and reach for information and knowledge. This led, in turn, to even deeper changes in individual lives, business organization. and human governance.

The first large-scale mechanical information system was Herman Hollerith ’s census tabulator. Invented in time to process the 1890 U.S. census, Hollerith’s machine represented a major step in automation. as well as an inspiration to develop computerized information systems.

One of the first computers used for such information processing was the UNIVAC I, installed at the U.S. Bureau of the Census in 1951 for administrative use and at General Electric in 1954 for commercial use. Beginning in the late 1970s, personal computers brought some of the advantages of information systems to small businesses and to individuals. Early in the same decade the Internet began its expansion as the global network of networks. In 1991 the World Wide Web. invented by Tim Berners-Lee as a means to access the interlinked information stored in the globally dispersed computers connected by the Internet, began operation and became the principal service delivered on the network. The global penetration of the Internet and the Web has enabled access to information and other resources and facilitated the forming of relationships among people and organizations on an unprecedented scale. The progress of electronic commerce over the Internet has resulted in a dramatic growth in digital interpersonal communications (via e-mail and social networks), distribution of products (software, music, e-books, and movies), and business transactions (buying, selling, and advertising on the Web). With the worldwide spread of smartphones. tablets. laptops, and other computer-based mobile devices, all of which are connected by wireless communication networks, information systems have been extended to support mobility as the natural human condition.

As information systems enabled more diverse human activities, they exerted a profound influence over society. These systems quickened the pace of daily activities, enabled people to develop and maintain new and often more-rewarding relationships, affected the structure and mix of organizations, changed the type of products bought, and influenced the nature of work. Information and knowledge became vital economic resources. Yet, along with new opportunities, the dependence on information systems brought new threats. Intensive industry innovation and academic research continually develop new opportunities while aiming to contain the threats.

Components of information systems

Types of information systems


28/07/2017

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