https://wikimd.com/index.php?action=history&feed=atom&title=Mainframe_computerMainframe computer - Revision history2026-04-22T07:10:54ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.com/index.php?title=Mainframe_computer&diff=5642717&oldid=prevPrab: CSV import2024-04-22T02:52:12Z<p>CSV import</p>
<p><b>New page</b></p><div>[[File:IBM_Z15_mainframe.jpg|IBM Z15 mainframe|thumb]] [[File:IBM_z13_and_LinuxONE_Rockhopper.jpg|IBM z13 and LinuxONE Rockhopper|thumb|left]] [[File:IBM_System_Z9_(type_2094_front).jpg|IBM System Z9 (type 2094 front)|thumb|left]] [[File:IBM_System_Z9_(type_2094_inside).jpg|IBM System Z9 (type 2094 inside)|thumb]] [[File:IBM_701console.jpg|IBM 701console|thumb]] '''Mainframe computer''' refers to a large, powerful, and expensive computer system that is capable of supporting hundreds or thousands of users simultaneously. Mainframes are primarily used by large organizations for critical applications, bulk data processing, such as [[census]], industry and consumer statistics, enterprise resource planning, and transaction processing.<br />
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==History==<br />
The term "mainframe" originated in the early days of computing when all the processing power was housed in large frames or cabinets. Early mainframes, developed in the 1950s, were large and expensive systems capable of performing complex computations and managing vast amounts of data. The [[IBM]] 360, introduced in 1964, is one of the most notable examples of early mainframe computers, setting a standard for the industry.<br />
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==Architecture==<br />
Mainframe architecture has evolved significantly over the years, but it typically includes a central processing unit (CPU) for computation, a large and fast primary storage (or memory) to store active data and programs, and various secondary storage devices for long-term data storage. Mainframes also feature extensive input/output (I/O) capabilities to handle the high volume of data transfer required by large applications.<br />
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==Operating Systems==<br />
Mainframe computers run on specialized [[operating systems]] designed to support their architecture and performance requirements. Some of the most common mainframe operating systems include [[z/OS]], developed by IBM, and [[Linux]] for mainframes. These operating systems are optimized for high availability, security, and resource utilization.<br />
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==Applications==<br />
Mainframes are used in sectors where data processing and reliability are critical. This includes banking, for processing transactions; insurance companies, for policy databases; government agencies, for tax processing and social security databases; and airlines, for passenger reservation systems.<br />
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==Advantages==<br />
The main advantages of mainframe computers include their reliability, availability, and serviceability (RAS) features, which ensure that the system remains operational and accessible. Mainframes are also known for their high level of security, making them ideal for handling sensitive information.<br />
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==Current Trends==<br />
Despite predictions of their demise, mainframes continue to be an essential part of the IT infrastructure in many large organizations. The advent of cloud computing has seen mainframes being used in hybrid environments, where they work alongside cloud services to leverage the strengths of both technologies.<br />
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==See Also==<br />
* [[Supercomputer]]<br />
* [[Server (computing)]]<br />
* [[Cloud computing]]<br />
* [[Enterprise resource planning]]<br />
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[[Category:Computing]]<br />
[[Category:Mainframe computers]]<br />
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