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87 relations: Access register, Address space, Amdahl Corporation, Assembly language, Backward compatibility, Binary-coded decimal, Booting, BUNCH, Cambridge Scientific Center, Central processing unit, Communications of the ACM, Compiler, Computer architecture, Computer data storage, Computer Weekly, Control Data Corporation, Control unit, CP/CMS, Cray, Digital Equipment Corporation, DOS/360 and successors, Emulator, Endianness, English Electric, English Electric System 4, ES EVM, Floating-point arithmetic, Fujitsu, Gene Amdahl, GNU Compiler Collection, Hercules (emulator), History of IBM magnetic disk drives, Hitachi, IBM, IBM 1130, IBM 1400 series, IBM 303X, IBM 308X, IBM 3090, IBM 4300, IBM 700/7000 series, IBM 9370, IBM Floating Point Architecture, IBM mainframe, IBM System/3, IBM System/360, IBM System/360 Model 20, IBM System/360 Model 22, IBM System/360 Model 25, IBM System/360 Model 67, ..., IBM System/360 Model 85, IBM System/370 Model 145, IBM System/370 Model 155, IBM System/370 Model 165, IBM System/390, IBM Z, Instruction set architecture, Interrupt, Linux on z Systems, Logical address, Magnetic-core memory, Microcode, Mitsubishi, Moore's law, MVS, OS/360 and successors, OS/VS1, OS/VS2 (SVS), PC-based IBM-compatible mainframes, Plug compatible, Processor register, Program counter, RCA, RCA Spectra 70, SHARE (computing), Siemens, Status register, UNIVAC, UNIVAC 9000 series, VAX, Vector processor, Virtual memory, VM (operating system), Z/Architecture, 24-bit, 31-bit, 32-bit. Expand index (37 more) »
Access register
In IBM terminology, Access Registers are hardware registers in the processor.
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Address space
In computing, an address space defines a range of discrete addresses, each of which may correspond to a network host, peripheral device, disk sector, a memory cell or other logical or physical entity.
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Amdahl Corporation
Amdahl Corporation was an information technology company which specialized in IBM mainframe-compatible computer products, some of which were regarded as supercomputers competing with those from Cray Research.
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Assembly language
An assembly (or assembler) language, often abbreviated asm, is a low-level programming language, in which there is a very strong (but often not one-to-one) correspondence between the assembly program statements and the architecture's machine code instructions.
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Backward compatibility
Backward compatibility is a property of a system, product, or technology that allows for interoperability with an older legacy system, or with input designed for such a system, especially in telecommunications and computing.
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Binary-coded decimal
In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight.
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Booting
In computing, booting is starting up a computer or computer appliance until it can be used.
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BUNCH
The BUNCH was the nickname for the group of mainframe computer competitors to IBM in the 1970s.
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Cambridge Scientific Center
The IBM Cambridge Scientific Center was a company research laboratory established in February 1964 in Cambridge, Massachusetts.
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Central processing unit
A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
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Communications of the ACM
Communications of the ACM is the monthly journal of the Association for Computing Machinery (ACM).
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Compiler
A compiler is computer software that transforms computer code written in one programming language (the source language) into another programming language (the target language).
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Computer architecture
In computer engineering, computer architecture is a set of rules and methods that describe the functionality, organization, and implementation of computer systems.
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Computer data storage
Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data.
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Computer Weekly
Computer Weekly is a digital magazine and website for IT professionals in the United Kingdom.
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Control Data Corporation
Control Data Corporation (CDC) was a mainframe and supercomputer firm.
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Control unit
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor.
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CP/CMS
CP/CMS (Control Program/Cambridge Monitor System) is a discontinued time-sharing operating system of the late 60s and early 70s, known for its excellent performance and advanced features.
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Cray
Cray Inc. is an American supercomputer manufacturer headquartered in Seattle, Washington.
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Digital Equipment Corporation
Digital Equipment Corporation, also known as DEC and using the trademark Digital, was a major American company in the computer industry from the 1950s to the 1990s.
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DOS/360 and successors
Disk Operating System/360, also DOS/360, or simply DOS, is a discontinued operating system for IBM mainframes.
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Emulator
In computing, an emulator is hardware or software that enables one computer system (called the host) to behave like another computer system (called the guest).
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Endianness
Endianness refers to the sequential order in which bytes are arranged into larger numerical values when stored in memory or when transmitted over digital links.
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English Electric
The English Electric Company Limited was a British industrial manufacturer formed after the armistice of World War I at the end of 1918.
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English Electric System 4
The English Electric (later ICL) System 4 was a mainframe computer announced in the 1965.
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ES EVM
ES EVM (ЕС ЭВМ, Единая система электронных вычислительных машин, Yedinaya Sistema Electronnykh Vytchislitel'nykh Mashin, meaning "Unified System of Electronic Computers") was a series of clones of IBM's System/360 and System/370 mainframes, released in the Comecon countries under the initiative of the Soviet Union since the 1960s.
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Floating-point arithmetic
In computing, floating-point arithmetic is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision.
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Fujitsu
is a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan.
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Gene Amdahl
Gene Myron Amdahl (November 16, 1922 – November 10, 2015) was an American computer architect and high-tech entrepreneur, chiefly known for his work on mainframe computers at IBM and later his own companies, especially Amdahl Corporation.
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GNU Compiler Collection
The GNU Compiler Collection (GCC) is a compiler system produced by the GNU Project supporting various programming languages.
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Hercules (emulator)
Hercules is a computer emulator allowing software written for IBM mainframe computers (System/370, System/390, and zSeries/System z) and for plug compatible mainframes (such as Amdahl machines) to run on other types of computer hardware, notably on low-cost personal computers.
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History of IBM magnetic disk drives
IBM manufactured magnetic disk storage devices from 1956 to 2003, when it sold its hard disk drive business to Hitachi.
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Hitachi
() is a Japanese multinational conglomerate company headquartered in Chiyoda, Tokyo, Japan.
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IBM
The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.
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IBM 1130
The IBM 1130 Computing System, introduced in 1965, was IBM's least expensive computer at that time.
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IBM 1400 series
The IBM 1400 series were second-generation (transistor) mid-range business decimal computers that IBM marketed in the early 1960s.
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IBM 303X
The IBM 303XIBM used a capital X when referring to 303X, as did print media; see Computerworld ref below.
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IBM 308X
The IBM 308XIBM used a capital X when referring to 308X, as did others needing an official reference; see the Congressional Record reference.
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IBM 3090
The IBM 3090 family was a high-end successor, after the IBM System/370, to the sequence begun a quarter of a century before by the IBM System/360.
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IBM 4300
The IBM 4300 series were mid-range systems compatible with System/370 that were sold from 1979 through 1992.
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IBM 700/7000 series
The IBM 700/7000 series is a series of large-scale (mainframe) computer systems that were made by IBM through the 1950s and early 1960s.
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IBM 9370
The IBM 9370 systems were "baby mainframe" midrange computers, released 1986 at the very low end of, and compatible with System/370.
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IBM Floating Point Architecture
IBM System/360 computers, and subsequent machines based on that architecture (mainframes), support a hexadecimal floating-point format.
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IBM mainframe
IBM mainframes are large computer systems produced by IBM since 1952.
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IBM System/3
The IBM System/3 was an IBM midrange computer introduced in 1969, and marketed until 1985.
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IBM System/360
The IBM System/360 (S/360) is a family of mainframe computer systems that was announced by IBM on April 7, 1964, and delivered between 1965 and 1978.
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IBM System/360 Model 20
The IBM System/360 Model 20 is the smallest member of the IBM System/360 family announced in November 1964.
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IBM System/360 Model 22
The IBM System/360 Model 22 was an IBM mainframe from the System/360 line.
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IBM System/360 Model 25
The IBM System/360 Model 25 was announced on January 3, 1968, 3 years before the IBM System/360 Model 22, as a "bridge between its old and new" members of the System/360 family of computers.
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IBM System/360 Model 67
The IBM System/360 Model 67 (S/360-67) was an important IBM mainframe model in the late 1960s.
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IBM System/360 Model 85
The IBM System/360 Model 85 is a high-end member of the System/360 family of computers, with many advanced features, and was introduced in January, 1968.
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IBM System/370 Model 145
The IBM System/370 Model 145 was announced Sep 23, 1970, three months after the 155 and 165 models.
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IBM System/370 Model 155
The IBM System/370 Model 155 (and the Model 165), were jointly announced Jun 30, 1970 as "designed for...
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IBM System/370 Model 165
The IBM System/370 Model 165 (and the Model 155) were jointly announced June 30, 1970 as "designed for...
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IBM System/390
The IBM System/390 was the third major generation of the System/360 line of computers.
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IBM Z
IBM Z is a family name used by IBM for all of its mainframe computers from the Z900 on.
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Instruction set architecture
An instruction set architecture (ISA) is an abstract model of a computer.
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Interrupt
In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.
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Linux on z Systems
Linux on IBM Z (or Linux on z for short, and previously Linux on z Systems) is the collective term for the Linux operating system compiled to run on IBM mainframes, especially IBM Z and IBM LinuxONE servers.
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Logical address
In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program(address generated by CPU).
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Magnetic-core memory
Magnetic-core memory was the predominant form of random-access computer memory for 20 years between about 1955 and 1975.
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Microcode
Microcode is a computer hardware technique that imposes an interpreter between the CPU hardware and the programmer-visible instruction set architecture of the computer.
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Mitsubishi
The is a group of autonomous Japanese multinational companies in a variety of industries.
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Moore's law
Moore's law is the observation that the number of transistors in a dense integrated circuit doubles about every two years.
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MVS
Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers.
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OS/360 and successors
OS/360, officially known as IBM System/360 Operating System, is a discontinued batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964; it was heavily influenced by the earlier IBSYS/IBJOB and Input/Output Control System (IOCS) packages.
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OS/VS1
Operating System/Virtual Storage 1, or OS/VS1, is a discontinued IBM mainframe computer operating system designed to be run on IBM System/370 hardware.
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OS/VS2 (SVS)
Single Virtual Storage (SVS) refers to Release 1 of Operating System/Virtual Storage 2 (OS/VS2); it is the successor system to the MVTBut not 65MP option of Operating System/360.
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PC-based IBM-compatible mainframes
Since the rise of the personal computer in the 1980s, IBM and other vendors have created PC-based IBM-compatible mainframes which are compatible with the larger IBM mainframe computers.
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Plug compatible
Plug compatible refers to "hardware that is designed to perform exactly like another vendor's product." The term PCM can refer to.
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Processor register
In computer architecture, a processor register is a quickly accessible location available to a computer's central processing unit (CPU).
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Program counter
The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), the instruction counter, or just part of the instruction sequencer, is a processor register that indicates where a computer is in its program sequence.
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RCA
The RCA Corporation was a major American electronics company, which was founded as the Radio Corporation of America in 1919.
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RCA Spectra 70
The RCA Spectra 70 was a line of electronic data processing (EDP) equipment manufactured by the Radio Corporation of America’s computer division beginning in April 1965.
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SHARE (computing)
SHARE Inc. is a volunteer-run user group for IBM mainframe computers that was founded in 1955 by Los Angeles-area users of the IBM 701 computer system.
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Siemens
Siemens AG is a German conglomerate company headquartered in Berlin and Munich and the largest industrial manufacturing company in Europe with branch offices abroad.
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Status register
A status register, flag register, or condition code register (CCR) is a collection of status flag bits for a processor.
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UNIVAC
UNIVAC (Universal Automatic Computer) is a line of electronic digital stored-program computers starting with the products of the Eckert–Mauchly Computer Corporation.
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UNIVAC 9000 series
The UNIVAC 9000 series (9200, 9300, 9400, 9700) was introduced by Sperry Rand in the mid-1960s to compete with the low end of the IBM System/360 series.
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VAX
VAX is a discontinued instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC) in the mid-1970s.
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Vector processor
In computing, a vector processor or array processor is a central processing unit (CPU) that implements an instruction set containing instructions that operate on one-dimensional arrays of data called vectors, compared to scalar processors, whose instructions operate on single data items.
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Virtual memory
In computing, virtual memory (also virtual storage) is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory." The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory.
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VM (operating system)
VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules emulator for personal computers.
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Z/Architecture
z/Architecture, initially and briefly called ESA Modal Extensions (ESAME), is IBM's 64-bit instruction set architecture implemented by its mainframe computers.
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24-bit
Notable 24-bit machines include the CDC 924 – a 24-bit version of the CDC 1604, CDC lower 3000 series, SDS 930 and SDS 940, the ICT 1900 series, and the Datacraft minicomputers/Harris H series.
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31-bit
In computer architecture, 31-bit integers, memory addresses, or other data units are those that are 31 bits wide.
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32-bit
32-bit microcomputers are computers in which 32-bit microprocessors are the norm.
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Redirects here:
303x, 308x, 370 architecture, 370/XA, 43xx, ESA/370, IBM 370, IBM ESA/370, IBM S/370, IBM S/370-XA, IBM System 370, IBM System/370-XA, IBM/370, S/370, S/370-XA, System 370, System/370, System/370-XA.
References
[1] https://en.wikipedia.org/wiki/IBM_System/370
