Mainframe computers

A 3270 Emulator is a computer program that duplicates the functions of an IBM 3270 mainframe computer terminal on a PC or similar microcomputer. ...more on Wikipedia about "3270 emulator"

Amdahl Corporation was founded by Dr. Gene Amdahl, a former IBM employee, in 1970, and specializes in IBM mainframe-compatible computer products. It has been a wholly owned subsidiary of Fujitsu since 1997. The company is located in Sunnyvale, California. ...more on Wikipedia about "Amdahl Corporation"

Apart from being stack- and tag-based, a notable architectural feature of the B5000 is that it is descriptor-based. Descriptors are the means of having data that does not reside on the stack as for arrays and objects. Descriptors are also used for string data as in compilers and commercial applications. Descriptors describe data blocks. Each descriptor contains a 20- bit address field referencing the data block. Each block has a length which is stored in the descriptor, also 20 bits. The size of the data is also given, being 4-, 6-, 8- or 48-bit data in a three bit field. ...more on Wikipedia about "B5000 Descriptors"

BESM (БЭСМ) is the name of a series of Russian mainframe computers. It stands for "Большая Электронно-Счётная Машина" (Bolshaja Elektronno-Schetnaja Mashina) in Russian, which can be translated as "Large Electronic Computing Machine", or simply "Large Computer", or "High-speed Electronic Computing Machine" according to one source. ...more on Wikipedia about "BESM"

The Burroughs B1000 Series machines consisted of three major generations. These were the B1700, B1800, and B1900 series machines. ...more on Wikipedia about "Burroughs B1700"

The Burroughs B2000 series of machines was built in Pasadena, California and was aimed straight at the business world. The architecture was built to support Cobol programming in the most efficient way possible. Burroughs architectures tried to narrow the semantic gap between high level languages and the hardware these programs executed on. ...more on Wikipedia about "Burroughs B2000"

The Burroughs B5000 was a series of computers designed beginning in 1961 by a team at Burroughs under the leadership of Robert (Bob) Barton. It was a unique machine, well ahead of its time. ...more on Wikipedia about "Burroughs B5000" It's real shortopedia feeling!

A channel command word (CCW) is used on the I/O architecture on the S/390 to initiate a command on a channel-attached device. Common device commands include SenseID or Basic Sense. A format 0 CCW can be used for 24 bit data addresses, else a format 1 CCW has to be used. ...more on Wikipedia about "Channel command word"

The Conversational Monitor System (CMS) is a relatively simple interactive computing single-user operating system which was for many years IBM's principal time-sharing product. CMS runs primarily on IBM mainframe computers on top of the VM virtual machine operating system. Each CMS user appears to have their own personal operating system on their own private computer. The pair form a standard product, VM/CMS. ...more on Wikipedia about "Conversational Monitor System"

In IBM mainframe computers, a Coupling Facility or CF is a piece of computer hardware which allows multiple processors to access the same data. This includes caching, locking, updating locked data, and workload balancing. CFs are key to Parallel Sysplex technology. ...more on Wikipedia about "Coupling Facility"

The Cray X-MP was a supercomputer designed, built and sold by Cray Research. The company's first parallel vector processor machine and a fourth generation super, it was the 1982 successor to the 1976 Cray-1, and the world's fastest computer 1983–1985. The principal designer was Steve Chen. ...more on Wikipedia about "Cray X-MP"

The Cray Y-MP was a supercomputer sold by Cray Research from 1988, and the successor to the company's X-MP. The Y-MP retained software compatibility with the X-MP, but extended the address registers from 24 to 32 bits. Higher-density ECL technology was used and a new liquid cooling system was devised. The Y-MP ran the Cray UNICOS operating system. ...more on Wikipedia about "Cray Y-MP"

The Cray-1 was a supercomputer designed by a team including Seymour Cray for Cray Research. The first Cray-1 system was installed at Los Alamos National Laboratory in 1976, and it went on to become one of the best known and most successful supercomputers in history. ...more on Wikipedia about "Cray-1"

A direct access storage device, or DASD ( IPA ) is a form of magnetic disk storage, historically used in the mainframe and minicomputer (mid-range) environments. A redundant array of independent disks (RAID) is a form of DASD. ...more on Wikipedia about "Direct access storage device"

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DOS/360 was the operating system announced by IBM at the low end for the System/360 in 1964 and delivered in 1965 or 1966. ...more on Wikipedia about "DOS/360"

Elbrus (ЭЛЬБРУС) is the name (after the mountain) of a series of Soviet supercomputer systems developed in Russia by Elbrus MCST and/or ITMiVT since the 1970s; its current models are compatible with U.S.-developed SPARC designs. ...more on Wikipedia about "Elbrus (computer)"

ES EVM (ЕС ЭВМ) was a Soviet clone of IBM's System/360 computer. ...more on Wikipedia about "ES EVM"

ESAME is an obsolete acronym meaning Enterprise Systems Architecture Millennium Edition. ESAME is now known as z/Architecture, IBM's 64-bit enterprise computing platform for its top-of-the-line servers. ...more on Wikipedia about "ESAME"

Extended Remote Copy or XRC is an IBM zSeries and System z9 mainframe computer technology for data replication. It combines supported hardware and z/OS software to provide asynchronous replication over long distances. It is complementary to IBM's Peer to Peer Remote Copy service, which is designed to operate either synchronously or asynchronously over shorter distances. ...more on Wikipedia about "Extended Remote Copy"

The GE-600 series was a family of 36-bit mainframe computers in the 1960s, built by General Electric. ...more on Wikipedia about "GE-600 series"

(Geographically Dispersed Parallel Sysplex) HyperSwap allows a GDPS manager to move functions on demand. ...more on Wikipedia about "Geographically Dispersed Parallel Sysplex" It's real http://www.shortopedia.com feeling! Mainframe_computers

Hipersocket is an IBM technology for high-speed communications between partitions on a server with a hypervisor. The term is most commonly associated with zSeries and System z9 mainframes which can provide in-memory TCP/IP connections between and among LPARs running several different operating systems, including z/OS, z/VM, and Linux on zSeries. ...more on Wikipedia about "Hipersocket"

The Honeywell 200 was a character-oriented two-address commercial computer introduced by Honeywell in the early 1960s, the basis of later models including 1200, 2200, (3200?), and 4200, and the character processor of the Honeywell 8200. ...more on Wikipedia about "Honeywell 200"

The IBM 1401 was a variable wordlength decimal computer that was announced by IBM on October 5, 1959 and marketed as an inexpensive "Business Computer". It was withdrawn on February 8, 1971. ...more on Wikipedia about "IBM 1401"

The IBM 1410 was a variable wordlength decimal computer that was announced by IBM on September 12 1960 and marketed as a midrange "Business Computer". It was withdrawn on March 30 1970. The 1410 was similar in design to the very popular IBM 1401, but it had one major difference. Addresses were five characters long and allowed a maximum memory of 80,000 characters, much larger than than the 16,000 characters permitted by the 1401's three character addresses. ...more on Wikipedia about "IBM 1410" shortopedia Is Good For You.

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