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Database Machine
A database machines or back end processor is a computer or special Computer hardware, hardware that stores and retrieves data from a database. It is specially designed for database access and is tightly coupled to the main (Front and back ends, front-end) computer(s) by a high-speed channel, whereas a database server is a general-purpose computer that holds a database and it's loosely coupled via a local area network to its Client (computing), clients. Database machines can retrieve large amount of data using Parallel computing, hundreds to thousands of microprocessor, microprocessors with DBMS, database software. The front end processor asks the back end (typically sending a query expressed in a query language) the data and further processes it. The back end processor on the other hand analyzes and stores the data from the front end processor. Back end processors result in higher performance, increasing host Computer memory, main memory, increasing Data recovery, database recovery a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer
A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic sets of operations known as Computer program, ''programs'', which enable computers to perform a wide range of tasks. The term computer system may refer to a nominally complete computer that includes the Computer hardware, hardware, operating system, software, and peripheral equipment needed and used for full operation; or to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of Programmable logic controller, industrial and Consumer electronics, consumer products use computers as control systems, including simple special-purpose devices like microwave ovens and remote controls, and factory devices like industrial robots. Computers are at the core of general-purpose devices ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiple Server
Multiple may refer to: Economics *Multiple finance, a method used to analyze stock prices *Multiples of the price-to-earnings ratio *Chain stores, are also referred to as 'Multiples' *Box office multiple, the ratio of a film's total gross to that of its opening weekend Sociology *Multiples (sociology), a theory in sociology of science by Robert K. Merton, see Science *Multiple (mathematics), multiples of numbers *List of multiple discoveries, instances of scientists, working independently of each other, reaching similar findings *Multiple birth, because having twins is sometimes called having "multiples" *Multiple sclerosis, an inflammatory disease *Parlance for people with multiple identities, sometimes called "multiples"; often theorized as having dissociative identity disorder *Multiple myeloma (MM), a cancer that forms in a type of white blood cell (WBC) called plasma cells. Printing *Printmaking, where ''multiple'' is often used as a term for a print, especially in the US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Content Addressable File Store
The Content Addressable File Store (CAFS) was a hardware device developed by International Computers Limited (ICL) that provided a disk storage with built-in search capability. The motivation for the device was the discrepancy between the high speed at which a disk could deliver data, and the much lower speed at which a general-purpose processor could filter the data looking for records that matched a search condition. Development of CAFS started in ICL's Research and Advanced Development Centre under Gordon Scarrott in the late 1960s following research by George Coulouris and John Evans who had completed a field study at Imperial College and Queen Mary College on database systems and applications . Their study had revealed the potential for substantial performance improvements in large-scale database applications by the inclusion of search logic in the disk controller. In its initial form, the search logic was built into the disk head. A standalone CAFS device was installed with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bare Metal
In information technology, bare machine (or bare-metal computer) is a computer which has no operating system. The software executed by a bare machine, commonly called a "bare metal program" or "bare metal application", is designed to interact directly with hardware. Bare machines are widely used in embedded systems, particularly in cases where resources are limited or high performance is required. Advantages Typically, a bare-metal application will run faster, use less memory and be more power efficient than an equivalent program that relies on an operating system, due to the inherent overhead imposed by system calls. For example, hardware inputs and outputs are directly accessible to bare metal software, whereas they must be accessed through system calls when using an OS. Disadvantages Bare metal applications typically require more effort to develop because operating system services such as memory management and task scheduling are not available. Debugging a bare-metal pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operating System
An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for efficient use of the system and may also include accounting software for cost allocation of Scheduling (computing), processor time, mass storage, peripherals, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computerfrom cellular phones and video game consoles to web servers and supercomputers. , Android (operating system), Android is the most popular operating system with a 46% market share, followed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Component-based Software Engineering
Component-based software engineering (CBSE), also called component-based development (CBD), is a style of software engineering that aims to construct a software system from software component, components that are loosely-Coupling (computer programming), coupled and Reusability, reusable. This emphasizes the separation of concerns among components. To find the right level of component granularity, software architects have to continuously iterate their component designs with developers. Architects need to take into account user requirements, responsibilities and architectural characteristics. Considerations For large-scale systems developed by large teams, a disciplined culture and process is required to achieve the benefits of CBSE. Third-party software component, Third-party components are often utilized in large systems. The system can be designed visually with the Unified Modeling Language (UML). Each software component, component is shown as a rectangle, and an interface is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julie McCann
Julie Ann McCann is a Northern Irish computer scientist who is a professor at Imperial College London. She is the leader of the Adaptive Emergent Systems Engineering. She is a Fellow of the British Computer Society and was awarded the Suffrage Science award in 2018. Early life and education As a teenager, McCann became interested in electronic music, particularly listening to Kraftwerk and Karlheinz Stockhausen. She lived close to the Armagh Planetarium in Armagh. She joined Ulster University for her academic studies, working toward a bachelor's and doctorate in computer science. She completed her doctorate in 1992. Research and career McCann develops spatial computing and wireless communications, which combine information from their environments with their digital components. Her group investigate convergence and anarchical spatial computing systems. To better understand this, she uses established understanding from systems beyond computing infrastructure (e.g. economics, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oracle Exadata
Oracle Exadata (Exadata) is a computing system optimized for running Oracle Databases. Exadata is a combined database machine and software platform that includes scale-out x86-64 compute and storage servers, RoCE networking, RDMA-addressable memory acceleration, NVMe flash, and specialized software. Exadata was introduced in 2008 for on-premises deployment, and since October 2015, via the Oracle Cloud as a subscription service, known as the ''Exadata Database Service on Dedicated Infrastructure,'' and ''Exadata Database Service on Exascale Infrastructure''. ''Exadata Cloud@Customer'' is a hybrid cloud (on-premises) deployment of Exadata Database Service. Starting December, 2023, Exadata Database Service became available for Microsoft Azure, Google and AWS public clouds within the ''Oracle Database@Azure'', ''Oracle Database@Google Cloud'' and ''Oracle Database@AWS'multicloud partnerships Use cases Exadata is designed to run all Oracle Database workloads, such as OLTP, Data ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DBC 1012
The DBC/1012 Data Base Computer was a database machine introduced by Teradata Corporation in 1984, as a back-end data base management system for mainframe computers. The DBC/1012 harnessed multiple Intel microprocessors, each with its own dedicated disk drive, by interconnecting them with the Ynet switching network in a massively parallel processing system. The DBC/1012 was designed to manage databases up to one terabyte (1,000,000,000,000 characters) in size; "1012" in the name refers to "10 to the power of 12". Major components included: * Mainframe-resident software to manage users and transfer data * Interface processor (IFP) - the hardware connection between the mainframe and the DBC/1012 * Ynet - a custom-built system interconnect that supported broadcast and sorting * Access module processor (AMP) - the unit of parallelism: includes microprocessor, disk drive, file system, and database software * System console and printer * TEQUEL (TEradata QUEry Language) - an exten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teradata
Teradata Corporation is an American software company that provides cloud database and Analytics, analytics-related software, products, and services. The company was formed in 1979 in Brentwood, California, as a collaboration between researchers at Caltech and Citibank's advanced technology group. Overview Teradata is an enterprise software company that develops and sells database analytics software. The company provides three main services: business analytics, cloud products, and consulting. It operates in North and Latin America, Europe, the Middle East, Africa, and Asia. Teradata is headquartered in San Diego, California and has additional major U.S. locations in Atlanta and San Francisco, where its data center research and development is housed. It is publicly traded on the New York Stock Exchange (NYSE) under the stock symbol TDC. Steve McMillan has served as the company's president and chief executive officer since 2020. The company reported $1.836 billion in revenue, a net ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NonStop (server Computers)
NonStop is a series of server computers introduced to market in 1976 by Tandem Computers Inc., beginning with the NonStop product line. It was followed by the Tandem Integrity NonStop line of lock-step fault-tolerant computers, now defunct (not to be confused with the later and much different Hewlett-Packard Integrity product line extension). The original NonStop product line is currently offered by Hewlett Packard Enterprise since Hewlett-Packard Company's split in 2015. Because NonStop systems are based on an integrated hardware/software stack, Tandem and later HPE also developed the NonStop OS operating system for them. NonStop systems are, to an extent, self-healing. To circumvent single points of failure, they are equipped with almost all redundant components. When a mainline component fails, the system automatically falls back to the backup. These systems can be used by banks, stock exchanges, payment applications, retail companies, energy and utility services, healt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
