Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

IBM 650

Index IBM 650

The IBM 650 Magnetic Drum Data-Processing Machine is one of IBM's early computers, and the world’s first mass-produced computer. [1]

45 relations: Accumulator (computing), Alphanumeric, Assembly language, Bi-quinary coded decimal, Character (computing), Communications of the ACM, Comptroller, Computer, Computer memory, Computer programming, Donald Knuth, Drum memory, Floating-point arithmetic, Flowchart, Fortran, History of IBM magnetic disk drives, IBM, IBM 1620, IBM 407, IBM 533, IBM 604, IBM 650, IBM 700/7000 series, IBM 7070, IBM 727, Index register, Information Processing Language, Instruction register, Instruction set architecture, Interleaving (disk storage), John Hancock Financial, Magnetic-core memory, Mass production, Memory address, Microsecond, Millisecond, Opcode, Oslo, Revolutions per minute, Software, The Art of Computer Programming, Transistor computer, Unit record equipment, UNIVAC Solid State, Word (computer architecture).

Accumulator (computing)

In a computer's central processing unit (CPU), an accumulator is a register in which intermediate arithmetic and logic results are stored.

New!!: IBM 650 and Accumulator (computing) · See more »


Alphanumeric is a combination of alphabetic and numeric characters, and is used to describe the collection of Latin letters and Arabic digits or a text constructed from this collection.

New!!: IBM 650 and Alphanumeric · See more »

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.

New!!: IBM 650 and Assembly language · See more »

Bi-quinary coded decimal

Bi-quinary coded decimal is a numeral encoding scheme used in many abacuses and in some early computers, including the Colossus.

New!!: IBM 650 and Bi-quinary coded decimal · See more »

Character (computing)

In computer and machine-based telecommunications terminology, a character is a unit of information that roughly corresponds to a grapheme, grapheme-like unit, or symbol, such as in an alphabet or syllabary in the written form of a natural language.

New!!: IBM 650 and Character (computing) · See more »

Communications of the ACM

Communications of the ACM is the monthly journal of the Association for Computing Machinery (ACM).

New!!: IBM 650 and Communications of the ACM · See more »


A comptroller is a management level position responsible for supervising the quality of accounting and financial reporting of an organization.

New!!: IBM 650 and Comptroller · See more »


A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

New!!: IBM 650 and Computer · See more »

Computer memory

In computing, memory refers to the computer hardware integrated circuits that store information for immediate use in a computer; it is synonymous with the term "primary storage".

New!!: IBM 650 and Computer memory · See more »

Computer programming

Computer programming is the process of building and designing an executable computer program for accomplishing a specific computing task.

New!!: IBM 650 and Computer programming · See more »

Donald Knuth

Donald Ervin Knuth (born January 10, 1938) is an American computer scientist, mathematician, and professor emeritus at Stanford University.

New!!: IBM 650 and Donald Knuth · See more »

Drum memory

Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria.

New!!: IBM 650 and Drum memory · See more »

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.

New!!: IBM 650 and Floating-point arithmetic · See more »


A flowchart is a type of diagram that represents an algorithm, workflow or process.

New!!: IBM 650 and Flowchart · See more »


Fortran (formerly FORTRAN, derived from Formula Translation) is a general-purpose, compiled imperative programming language that is especially suited to numeric computation and scientific computing.

New!!: IBM 650 and Fortran · See more »

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.

New!!: IBM 650 and History of IBM magnetic disk drives · See more »


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.

New!!: IBM 650 and IBM · See more »

IBM 1620

The IBM 1620 was announced by IBM on October 21, 1959, and marketed as an inexpensive "scientific computer".

New!!: IBM 650 and IBM 1620 · See more »

IBM 407

The IBM 407 Accounting Machine, introduced in 1949, was one of a long line of IBM tabulating machines dating back to the days of Herman Hollerith.

New!!: IBM 650 and IBM 407 · See more »

IBM 533

The IBM 533 Input-Output Unit, announced on July 2, 1953, was a punched card reader and punch that served as the primary input-output unit for the IBM 650 computer.

New!!: IBM 650 and IBM 533 · See more »

IBM 604

The IBM 604 was a control panel programmable Electronic Calculating Punch introduced in 1948, and was "a machine on which considerable expectations for the future of the business were pinned and in which a corresponding amount of planning talent was invested."Charles J. Bashe, Lyle R. Johnson, John H. Palmer, and Emerson W. Pugh, IBM's Early Computers, MIT Press, 1986,, p. 61 Most of the circuitry was based on modifications of circuit designs used in the earlier 603 Electronic Multiplier and was packaged in small one-tube-replaceable pluggable units, which made the product more easily manufactured and serviced.

New!!: IBM 650 and IBM 604 · See more »

IBM 650

The IBM 650 Magnetic Drum Data-Processing Machine is one of IBM's early computers, and the world’s first mass-produced computer.

New!!: IBM 650 and IBM 650 · See more »

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.

New!!: IBM 650 and IBM 700/7000 series · See more »

IBM 7070

IBM 7070 was a decimal architecture intermediate data processing system that was introduced by IBM in 1958.

New!!: IBM 650 and IBM 7070 · See more »

IBM 727

The IBM 727 Magnetic Tape Unit was announced for the IBM 701 and IBM 702 on September 25, 1953.

New!!: IBM 650 and IBM 727 · See more »

Index register

An index register in a computer's CPU is a processor register used for modifying operand addresses during the run of a program, typically for doing vector/array operations.

New!!: IBM 650 and Index register · See more »

Information Processing Language

Information Processing Language (IPL) is a programming language created by Allen Newell, Cliff Shaw, and Herbert A. Simon at RAND Corporation and the Carnegie Institute of Technology at about 1956.

New!!: IBM 650 and Information Processing Language · See more »

Instruction register

In computing, an instruction register (IR) is the part of a CPU's control unit that holds the instruction currently being executed or decoded.

New!!: IBM 650 and Instruction register · See more »

Instruction set architecture

An instruction set architecture (ISA) is an abstract model of a computer.

New!!: IBM 650 and Instruction set architecture · See more »

Interleaving (disk storage)

In disk storage and drum memory, interleaving is a technique used to improve access performance to storage by putting data accessed sequentially into non-sequential sectors.

New!!: IBM 650 and Interleaving (disk storage) · See more »

John Hancock Financial

John Hancock Financial is an informal term for a United States insurance company which existed, in various forms, from its founding on April 21, 1862, until its acquisition in 2004 by the Canadian insurance company Manulife Financial.

New!!: IBM 650 and John Hancock Financial · See more »

Magnetic-core memory

Magnetic-core memory was the predominant form of random-access computer memory for 20 years between about 1955 and 1975.

New!!: IBM 650 and Magnetic-core memory · See more »

Mass production

Mass production, also known as flow production or continuous production, is the production of large amounts of standardized products, including and especially on assembly lines.

New!!: IBM 650 and Mass production · See more »

Memory address

In computing, a memory address is a reference to a specific memory location used at various levels by software and hardware.

New!!: IBM 650 and Memory address · See more »


A microsecond is an SI unit of time equal to one millionth (0.000001 or 10−6 or 1/1,000,000) of a second.

New!!: IBM 650 and Microsecond · See more »


A millisecond (from milli- and second; symbol: ms) is a thousandth (0.001 or 10−3 or 1/1000) of a second.

New!!: IBM 650 and Millisecond · See more »


In computing, an opcode (abbreviated from operation code, also known as instruction syllable, instruction parcel or opstring) is the portion of a machine language instruction that specifies the operation to be performed.

New!!: IBM 650 and Opcode · See more »


Oslo (rarely) is the capital and most populous city of Norway.

New!!: IBM 650 and Oslo · See more »

Revolutions per minute

Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is the number of turns in one minute.

New!!: IBM 650 and Revolutions per minute · See more »


Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.

New!!: IBM 650 and Software · See more »

The Art of Computer Programming

The Art of Computer Programming (sometimes known by its initials TAOCP) is a comprehensive monograph written by Donald Knuth that covers many kinds of programming algorithms and their analysis.

New!!: IBM 650 and The Art of Computer Programming · See more »

Transistor computer

A transistor computer, now often called a second generation computer, is a computer which uses discrete transistors instead of vacuum tubes.

New!!: IBM 650 and Transistor computer · See more »

Unit record equipment

Starting at the end of the nineteenth century, well before the advent of electronic computers, data processing was performed using electromechanical machines called unit record equipment, electric accounting machines (EAM) or tabulating machines.

New!!: IBM 650 and Unit record equipment · See more »

UNIVAC Solid State

The UNIVAC Solid State was a magnetic drum-based solid-state computer announced by Sperry Rand in December 1958 as a response to the IBM 650.

New!!: IBM 650 and UNIVAC Solid State · See more »

Word (computer architecture)

In computing, a word is the natural unit of data used by a particular processor design.

New!!: IBM 650 and Word (computer architecture) · See more »

Redirects here:

IBM 653, Symbolic Optimal Assembly Program.


[1] https://en.wikipedia.org/wiki/IBM_650

Hey! We are on Facebook now! »