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Virtual Chargeback
In information technology, virtual chargeback is a practice of charging back the costs of virtual IT infrastructure to departments or business units, that actually use it. This means analyzing and recording the resource utilisation on virtual machines (VMs). Definition and purpose of chargeback in a virtual context The idea of chargeback A chargeback is a return of money to a payer of a transaction, especially a credit card transaction. Most commonly the payer is a consumer. The chargeback reverses a money transfer from the consumer's bank account, line of credit, or credit ca ... in a traditional (non-virtualised) sense is not new, and references go as far back as the 1980s. Publications available on the Internet generally support the notion that chargeback involved charging departments based on actual resource consumption rather than forecast usage. Chargeback is most relevant to IT departments, simply because almost all areas of an organisation use computing resources. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Technology
Information technology (IT) is the use of computers to create, process, store, retrieve, and exchange all kinds of data . and information. IT forms part of information and communications technology (ICT). An information technology system (IT system) is generally an information system, a communications system, or, more specifically speaking, a computer system — including all hardware, software, and peripheral equipment — operated by a limited group of IT users. Although humans have been storing, retrieving, manipulating, and communicating information since the earliest writing systems were developed, 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. We shall call it information technology (IT)." Their definition consists of three categories: techniques ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IT Infrastructure
Information technology infrastructure is defined broadly as a set of information technology (IT) components that are the foundation of an IT service; typically physical components ( computer and networking hardware and facilities), but also various software and network components. According to the ITIL Foundation Course Glossary, IT Infrastructure can also be termed as “All of the hardware, software, networks, facilities, etc., that are required to develop, test, deliver, monitor, control or support IT services. The term IT infrastructure includes all of the Information Technology but not the associated People, Processes and documentation.” Overview In IT Infrastructure, the above technological components contribute to and drive business functions. Leaders and managers within the IT field are responsible for ensuring that both the physical hardware and software networks and resources are working optimally. IT infrastructure can be looked at as the foundation of an organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Machine
In computing, a virtual machine (VM) is the virtualization/ emulation of a computer system. Virtual machines are based on computer architectures and provide functionality of a physical computer. Their implementations may involve specialized hardware, software, or a combination. Virtual machines differ and are organized by their function, shown here: * ''System virtual machines'' (also termed full virtualization VMs) provide a substitute for a real machine. They provide functionality needed to execute entire operating systems. A hypervisor uses native execution to share and manage hardware, allowing for multiple environments which are isolated from one another, yet exist on the same physical machine. Modern hypervisors use hardware-assisted virtualization, virtualization-specific hardware, primarily from the host CPUs. * Process virtual machines are designed to execute computer programs in a platform-independent environment. Some virtual machine emulators, such as QEMU and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chargeback
A chargeback is a return of money to a payer of a transaction, especially a credit card transaction. Most commonly the payer is a consumer. The chargeback reverses a money transfer from the consumer's bank account, line of credit, or credit card. The chargeback is ordered by the bank that issued the consumer's payment card. In the distribution industry, a chargeback occurs when the supplier sells a product at a higher price to the distributor than the price they have set with the end user. The distributor submits a chargeback to the supplier so they can recover the money lost in the transaction. United States overview The chargeback mechanism exists primarily for consumer protection. Holders of credit cards issued in the United States are afforded reversal rights by Regulation Z of the Truth in Lending Act. United States debit card holders are guaranteed reversal rights by Regulation E of the Electronic Fund Transfer Act. Similar rights extend globally, pursuant to the ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
System Center Operations Manager
System Center Operations Manager (SCOM) is a cross-platform data center monitoring system for operating systems and hypervisors. It uses a single interface that shows state, health, and performance information of computer systems. It also provides alerts generated according to some availability, performance, configuration, or security situation being identified. It works with Microsoft Windows Server and Unix-based hosts. History The product began as a network management system called SeNTry ELM, which was developed by the British company Serverware Group plc. In June 1998 the intellectual property rights were bought by Mission Critical Software, Inc. who renamed the product ''Enterprise Event Manager''. Mission Critical undertook a complete rewrite of the product, naming the new version OnePoint Operations Manager (OOM). Mission Critical Software merged with NetIQ in early 2000, and sold the rights of the product to Microsoft in October 2000. It was later renamed into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Footnotes
A note is a string of text placed at the bottom of a page in a book or document or at the end of a chapter, volume, or the whole text. The note can provide an author's comments on the main text or citations of a reference work in support of the text. Footnotes are notes at the foot of the page while endnotes are collected under a separate heading at the end of a chapter, volume, or entire work. Unlike footnotes, endnotes have the advantage of not affecting the layout of the main text, but may cause inconvenience to readers who have to move back and forth between the main text and the endnotes. In some editions of the Bible, notes are placed in a narrow column in the middle of each page between two columns of biblical text. Numbering and symbols In English, a footnote or endnote is normally flagged by a superscripted number immediately following that portion of the text the note references, each such footnote being numbered sequentially. Occasionally, a number between bracke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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