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Motorola 68000

Index Motorola 68000

The Motorola 68000 ("'sixty-eight-thousand'"; also called the m68k or Motorola 68k, "sixty-eight-kay") is a 16/32-bit CISC microprocessor, which implements a 32-bit instruction set, with 32-bit registers and 32-bit internal data bus, but with a 16-bit data ALU and two 16-bit arithmetic ALUs and a 16-bit external data bus, designed and marketed by Motorola Semiconductor Products Sector. [1]

191 relations: Address space, Addressing mode, Allen-Bradley, Alpha Microsystems, AlphaSmart, Amiga, Apollo/Domain, Apple Inc., Apple Lisa, Arcade game, Arithmetic logic unit, Arithmetic shift, Assembly language, Atari Jaguar, Atari ST, Backward compatibility, Bank switching, Big Run (video game), Binary-coded decimal, Booting, Branch table, Breakpoint, Bus (computing), Bus error, Byte (magazine), C (programming language), C++, Call stack, Calling convention, Capcom, Carry flag, Celsius, Central processing unit, Cisco Heat, Classic Mac OS, CMOS, Commodore International, Communication protocol, Complex instruction set computer, Computer architecture, Computer multitasking, Computer terminal, Coprocessor, Corvus Systems, CP System, CP System II, Depletion-load NMOS logic, Dhrystone, Digital Equipment Corporation, Digital storage oscilloscope, ..., Division by zero, DTACK Grounded, Embedded system, Endianness, Ensoniq, Ethernet, Execution unit, Fast Fourier transform, Floating-point unit, Food Fight (video game), Forward compatibility, Freescale 683XX, Freescale DragonBall, Freescale Semiconductor, Galaxy Force (video game), Gregorian calendar, Guru Meditation, Handspring (company), Hertz, Hewlett-Packard, Hexadecimal, Hitachi, Home computer, HP 9000, HP LaserJet, IBM Personal Computer, Illegal opcode, IMP-16, Input/output, Instruction set architecture, Intel 8086, Intel iAPX 432, Interrupt, Interrupt vector table, Jaleco, JetDirect, Julian calendar, Laser printing, LaserWriter, LeCroy Corporation, List of Sega arcade system boards, Mac OS memory management, Macintosh, Macintosh 128K, Macintosh Portable, Memory bus, Microcode, Microcomputer, Microcontroller, Microprocessor, Microprocessor Report, MIDI, Minicomputer, Mostek, Motorola, Motorola 6800, Motorola 68000 series, Motorola 68008, Motorola 68010, Motorola 68012, Motorola 68020, Motorola 68881, Motorola 88000, MPU-401, Multiprocessing, Namco System 2, National Semiconductor, National Semiconductor PACE, Negative flag, Neo Geo (system), NetWare, Non-maskable interrupt, Null character, NXP ColdFire, One Per Desk, Orthogonal instruction set, Overflow flag, Palm (PDA), PC-based IBM-compatible mainframes, PDP-11, Personal computer, Popek and Goldberg virtualization requirements, PostScript, Privilege escalation, Processor register, Programmable logic controller, Random-access memory, Read-only memory, Recursion (computer science), Reentrancy (computing), Rockwell International, Roland MT-32, SAGE Computer Technology, Second source, Sega, Sega CD, Sega Genesis, Sega Saturn, Semaphore (programming), Semiconductor device fabrication, Siemens, Signetics, Silicon Graphics, Sinclair QL, SNK, SS-50 bus, Stack (abstract data type), Status register, Steel Gunner, STMicroelectronics, Subroutine, Sun Microsystems, Sun-1, SWTPC, Tandy Corporation, Terminate and stay resident program, Test-and-set, Texas Instruments, Thomson-CSF, TI-89 series, TI-92 series, Toshiba, TRS-80 Model II, United States dollar, Universal asynchronous receiver-transmitter, Unix, VAX, VAXstation, Video game, Video game console, Virtual memory, Watt, Workstation, X68000, Xenix, Zero flag, Zilog Z80, 16-bit, 32-bit, 7400 series, 8-bit. Expand index (141 more) »

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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Addressing mode

Addressing modes are an aspect of the instruction set architecture in most central processing unit (CPU) designs.

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Allen-Bradley is the brand-name of a line of Factory Automation Equipment manufactured by Rockwell Automation.

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Alpha Microsystems

Alpha Microsystems is a computer company founded in 1977 by John French, Dick Wilcox and Bob Hitchcock.

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The AlphaSmart was a brand of portable, battery powered, word-processing keyboards manufactured by NEO Direct, Inc.

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The Amiga is a family of personal computers introduced by Commodore in 1985.

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Apollo/Domain was a range of workstations developed and produced by Apollo Computer from circa 1980 to 1989.

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Apple Inc.

Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services.

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Apple Lisa

The Apple Lisa is a desktop computer developed by Apple, released on January 19, 1983.

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Arcade game

An arcade game or coin-op is a coin-operated entertainment machine typically installed in public businesses such as restaurants, bars and amusement arcades.

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Arithmetic logic unit

An arithmetic logic unit (ALU) is a combinational digital electronic circuit that performs arithmetic and bitwise operations on integer binary numbers.

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Arithmetic shift

In computer programming, an arithmetic shift is a shift operator, sometimes termed a signed shift (though it is not restricted to signed operands).

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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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Atari Jaguar

The Atari Jaguar is a home video game console that was developed by Atari Corporation.

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Atari ST

The Atari ST is a line of home computers from Atari Corporation and the successor to the Atari 8-bit family.

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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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Bank switching

Bank switching is a technique used in computer design to increase the amount of usable memory beyond the amount directly addressable by the processor.

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Big Run (video game)

is a 3D rally racing arcade game released by Jaleco in 1989.

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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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In computing, booting is starting up a computer or computer appliance until it can be used.

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Branch table

In computer programming, a branch table or jump table is a method of transferring program control (branching) to another part of a program (or a different program that may have been dynamically loaded) using a table of branch or jump instructions.

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In software development, a breakpoint is an intentional stopping or pausing place in a program, put in place for debugging purposes.

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Bus (computing)

In computer architecture, a bus (a contraction of the Latin omnibus) is a communication system that transfers data between components inside a computer, or between computers.

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Bus error

In computing, a bus error is a fault raised by hardware, notifying an operating system (OS) that a process is trying to access memory that the CPU cannot physically address: an invalid address for the address bus, hence the name.

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Byte (magazine)

Byte was an American microcomputer magazine, influential in the late 1970s and throughout the 1980s because of its wide-ranging editorial coverage.

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C (programming language)

C (as in the letter ''c'') is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations.

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C++ ("see plus plus") is a general-purpose programming language.

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Call stack

In computer science, a call stack is a stack data structure that stores information about the active subroutines of a computer program.

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Calling convention

In computer science, a calling convention is an implementation-level (low-level) scheme for how subroutines receive parameters from their caller and how they return a result.

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is a Japanese video game developer and publisher known for creating numerous multi-million selling game franchises, including Street Fighter, Mega Man, Resident Evil, Devil May Cry, Ace Attorney, Monster Hunter, and Dead Rising, as well as games based on the Disney animated properties.

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Carry flag

In computer processors the carry flag (usually indicated as the C flag) is a single bit in a system status (flag) register used to indicate when an arithmetic carry or borrow has been generated out of the most significant ALU bit position.

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The Celsius scale, previously known as the centigrade scale, is a temperature scale used by the International System of Units (SI).

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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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Cisco Heat

is a 1990 arcade racing game developed and published by Jaleco.

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Classic Mac OS

Classic Mac OS is a colloquial term used to describe a series of operating systems developed for the Macintosh family of personal computers by Apple Inc. from 1984 until 2001.

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Complementary metal–oxide–semiconductor, abbreviated as CMOS, is a technology for constructing integrated circuits.

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Commodore International

Commodore International (or Commodore International Limited) was an American home computer and electronics manufacturer founded by Jack Tramiel.

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Communication protocol

In telecommunication, a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity.

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Complex instruction set computer

A complex instruction set computer (CISC) is a computer in which single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) or are capable of multi-step operations or addressing modes within single instructions.

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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 multitasking

In computing, multitasking is the concurrent execution of multiple tasks (also known as processes) over a certain period of time.

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Computer terminal

A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying or printing data from, a computer or a computing system.

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A coprocessor is a computer processor used to supplement the functions of the primary processor (the CPU).

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Corvus Systems

Corvus Systems was a technology company founded by Michael D'Addio and Mark Hahn in 1979 and located in San Jose, Silicon Valley, in the United States.

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CP System

The, Capcom Play System or CPS is an arcade system board developed by Capcom that ran game software stored on removable ROM cartridges.

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CP System II

The or CPS-2 is an arcade system board that Capcom first used in 1993 for Super Street Fighter II.

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Depletion-load NMOS logic

In integrated circuits, depletion-load NMOS is a form of digital logic family that uses only a single power supply voltage, unlike earlier nMOS logic families that needed more than one different power supply voltage.

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Dhrystone is a synthetic computing benchmark program developed in 1984 by Reinhold P. Weicker intended to be representative of system (integer) programming.

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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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Digital storage oscilloscope

A digital storage oscilloscope (often abbreviated DSO) is an oscilloscope which stores and analyses the signal digitally rather than using analog techniques.

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Division by zero

In mathematics, division by zero is division where the divisor (denominator) is zero.

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DTACK Grounded

DTACK Grounded was a computer hobbyist newsletter published from July 1981 to September 1985 by Hal W. Hardenberg.

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Embedded system

An embedded system is a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints.

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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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Ensoniq Corp. was an American electronics manufacturer, best known throughout the mid-1980s and 1990s for its musical instruments, principally samplers and synthesizers.

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Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).

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Execution unit

In computer engineering, an execution unit (also called a functional unit) is a part of the central processing unit (CPU) that performs the operations and calculations as instructed by the computer program.

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Fast Fourier transform

A fast Fourier transform (FFT) is an algorithm that samples a signal over a period of time (or space) and divides it into its frequency components.

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Floating-point unit

A floating-point unit (FPU, colloquially a math coprocessor) is a part of a computer system specially designed to carry out operations on floating point numbers.

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Food Fight (video game)

Food Fight (also styled as Charley Chuck's Food Fight) is an arcade game released by Atari, Inc. in March 1983.

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Forward compatibility

Forward compatibility or upward compatibility is a design characteristic that allows a system to accept input intended for a later version of itself.

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Freescale 683XX

The Freescale 683xx (formerly Motorola 683xx) is a family of compatible microcontrollers that use a Motorola 68000-based CPU core.

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Freescale DragonBall

Motorola/Freescale Semiconductor's DragonBall, or MC68328, is a microcontroller design based on the famous 68000 core, but implemented as an all-in-one low-power system for handheld computer use.

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Freescale Semiconductor

Freescale Semiconductor, Inc. was an American multinational corporation headquartered in Austin, Texas, with design, research and development, manufacturing and sales operations in more than 75 locations in 19 countries.

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Galaxy Force (video game)

is a sprite-scaling rail shooter arcade game, released by Sega in 1988 and built upon the Sega Y Board.

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Gregorian calendar

The Gregorian calendar is the most widely used civil calendar in the world.

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Guru Meditation

The Guru Meditation is an error notice displayed by early versions of the Commodore Amiga computer when they crashed.

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Handspring (company)

Handspring, Inc was a maker of Palm OS-based Visor- and Treo-branded personal digital assistants.

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The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

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The Hewlett-Packard Company (commonly referred to as HP) or shortened to Hewlett-Packard was an American multinational information technology company headquartered in Palo Alto, California.

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In mathematics and computing, hexadecimal (also base, or hex) is a positional numeral system with a radix, or base, of 16.

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() is a Japanese multinational conglomerate company headquartered in Chiyoda, Tokyo, Japan.

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Home computer

Home computers were a class of microcomputers entering the market in 1977, and becoming common during the 1980s.

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HP 9000

HP 9000 is a line of workstation and server computer systems produced by the Hewlett-Packard Company (HP).

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HP LaserJet

LaserJet as a brand name identifies the line of dry electrophotographic (DEP) laser printers marketed by the American computer company Hewlett-Packard (HP).

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IBM Personal Computer

The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform.

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Illegal opcode

An illegal opcode, also called an undocumented instruction, is an instruction to a CPU that is not mentioned in any official documentation released by the CPU's designer or manufacturer, which nevertheless has an effect.

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The IMP-16, by National Semiconductor, was the first multi-chip 16-bit microprocessor in 1973.

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In computing, input/output or I/O (or, informally, io or IO) is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.

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Instruction set architecture

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

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Intel 8086

The 8086 (also called iAPX 86) is a 16-bit microprocessor chip designed by Intel between early 1976 and mid-1978, when it was released.

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Intel iAPX 432

The iAPX 432 (Intel Advanced Performance ArchitectureSometimes intel Advanced Processor architecture) was a computer architecture introduced in 1981.

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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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Interrupt vector table

An "interrupt vector table" (IVT) is a data structure that associates a list of interrupt handlers with a list of interrupt requests in a table of interrupt vectors.

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was the name of two different, but previously linked, Japanese video game companies that are now defunct.

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HP Jetdirect is the name of a technology sold by Hewlett-Packard that allows computer printers to be directly attached to a Local Area Network.

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Julian calendar

The Julian calendar, proposed by Julius Caesar in 46 BC (708 AUC), was a reform of the Roman calendar.

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Laser printing

Laser printing is an electrostatic digital printing process.

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The LaserWriter is a laser printer with built-in PostScript interpreter sold by Apple Computer, Inc. from 1985 to 1988.

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LeCroy Corporation

LeCroy Corporation is an American manufacturer of oscilloscopes, protocol analyzers and other test equipment.

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List of Sega arcade system boards

The following is a list of arcade system boards released by Sega.

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Mac OS memory management

Historically, the classic Mac OS used a form of memory management that has fallen out of favor in modern systems.

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The Macintosh (pronounced as; branded as Mac since 1998) is a family of personal computers designed, manufactured, and sold by Apple Inc. since January 1984.

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Macintosh 128K

The Macintosh 128K, originally released as the Apple Macintosh, is the original Apple Macintosh personal computer.

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Macintosh Portable

The Macintosh Portable is a laptop designed, manufactured and sold by Apple Computer, Inc. from September 1989 to October 1991.

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Memory bus

The memory bus is the computer bus which connects the main memory to the memory controller in computer systems.

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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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A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).

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A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.

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A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.

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Microprocessor Report

Microprocessor Report, is a publication for engineers and other industry professionals on microprocessors.

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MIDI (short for Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related music and audio devices.

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A minicomputer, or colloquially mini, is a class of smaller computers that was developed in the mid-1960s and sold for much less than mainframe and mid-size computers from IBM and its direct competitors.

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Mostek was an integrated circuit manufacturer, founded in 1969 by L. J. Sevin, Louay E. Sharif, Richard L. Petritz and other ex-employees of Texas Instruments.

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Motorola, Inc. was an American multinational telecommunications company founded on September 25, 1928, based in Schaumburg, Illinois.

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Motorola 6800

The 6800 ("sixty-eight hundred") is an 8-bit microprocessor designed and first manufactured by Motorola in 1974.

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Motorola 68000 series

The Motorola 68000 series (also termed 680x0, m68000, m68k, or 68k) is a family of 32-bit CISC microprocessors.

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Motorola 68008

The Motorola 68008 is an 8/16/32-bit microprocessor made by Motorola.

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Motorola 68010

The Motorola MC68010 processor is a 16/32-bit microprocessor from Motorola, released in 1982 as the successor to the Motorola 68000.

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Motorola 68012

The Motorola MC68012 processor is a 16/32-bit microprocessor from the early 1980s.

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Motorola 68020

The Motorola 68020 ("sixty-eight-oh-twenty", "sixty-eight-oh-two-oh" or "six-eight-oh-two-oh") is a 32-bit microprocessor from Motorola, released in 1984.

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Motorola 68881

The Motorola 68881 and Motorola 68882 are floating-point coprocessor (FPU) devices that were used in some computer systems in conjunction with the 68020 or 68030 microprocessors.

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Motorola 88000

The 88000 (m88k for short) is a RISC instruction set architecture (ISA) developed by Motorola.

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The MPU-401, where MPU stands for MIDI Processing Unit, is an important but now obsolete interface for connecting MIDI-equipped electronic music hardware to personal computers.

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Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system.

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Namco System 2

The Namco System 2 is a 16-bit arcade system board that was first used by Namco in December 1987, and a major enhancement for their earlier Namco System 1 arcade system board (which was introduced in April of that same year); it was later succeeded by the 3D Namco System 21 "Polygonizer" arcade system board, in 1988.

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National Semiconductor

National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California, United States.

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National Semiconductor PACE

National Semiconductor's IPC-16A/520 PACE, short for "Processing and Control Element", was the first commercial single-chip 16-bit microprocessor.

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Negative flag

In a computer processor the negative flag or sign flag is a single bit in a system status (flag) register used to indicate whether the result of the last mathematical operation resulted in a value in which the most significant bit was set.

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Neo Geo (system)

The, stylised as NEO・GEO, also written as NEOGEO, is a cartridge-based arcade system board and fourth-generation home video game console released on April 26, 1990, by Japanese game company SNK Corporation.

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NetWare is a discontinued computer network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, using the IPX network protocol.

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Non-maskable interrupt

In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore.

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Null character

The null character (also null terminator or null byte), abbreviated NUL, is a control character with the value zero.

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NXP ColdFire

The NXP ColdFire is a microprocessor that derives from the Motorola 68000 family architecture, manufactured for embedded systems development by NXP Semiconductors.

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One Per Desk

The One Per Desk, or OPD, was an innovative hybrid personal computer/telecommunications terminal based on the hardware of the Sinclair QL.

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Orthogonal instruction set

In computer engineering, an orthogonal instruction set is an instruction set architecture where all instruction types can use all addressing modes.

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Overflow flag

In computer processors, the overflow flag (sometime called V flag) is usually a single bit in a system status register used to indicate when an arithmetic overflow has occurred in an operation, indicating that the signed two's-complement result would not fit in the number of bits used for the operation (the ALU width).

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Palm (PDA)

Palm handhelds were Personal Digital Assistants (PDAs) that ran the Palm OS.

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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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The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series.

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Personal computer

A personal computer (PC) is a multi-purpose computer whose size, capabilities, and price make it feasible for individual use.

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Popek and Goldberg virtualization requirements

The Popek and Goldberg virtualization requirements are a set of conditions sufficient for a computer architecture to support system virtualization efficiently.

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PostScript (PS) is a page description language in the electronic publishing and desktop publishing business.

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Privilege escalation

Privilege escalation is the act of exploiting a bug, design flaw or configuration oversight in an operating system or software application to gain elevated access to resources that are normally protected from an application or user.

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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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Programmable logic controller

A programmable logic controller (PLC), or programmable controller is an industrial digital computer which has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis.

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Random-access memory

Random-access memory (RAM) is a form of computer data storage that stores data and machine code currently being used.

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Read-only memory

Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices.

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Recursion (computer science)

Recursion in computer science is a method of solving a problem where the solution depends on solutions to smaller instances of the same problem (as opposed to iteration).

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Reentrancy (computing)

In computing, a computer program or subroutine is called reentrant if it can be interrupted in the middle of its execution and then safely be called again ("re-entered") before its previous invocations complete execution.

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Rockwell International

Rockwell International was a major American manufacturing conglomerate in the latter half of the 20th century, involved in aircraft, the space industry, both defense-oriented and commercial electronics, automotive and truck components, printing presses, valves and meters, and industrial automation.

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Roland MT-32

The Roland MT-32 Multi-Timbre Sound Module is a MIDI synthesizer module first released in 1987 by Roland Corporation.

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SAGE Computer Technology

SAGE Computer Technology was a computer company based in Reno, Nevada, United States.

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Second source

In the electronics industry, a second source is a company that is licensed to manufacture and sell components originally designed by another company (the first source).

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Sega Games Co., Ltd., originally short for Service Games and officially styled as SEGA, is a Japanese multinational video game developer and publisher headquartered in Tokyo, Japan, with offices around the world.

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Sega CD

The Sega CD, released as the in most regions outside North America and Brazil, is a CD-ROM accessory for the Sega Genesis video game console designed and produced by Sega as part of the fourth generation of video game consoles.

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Sega Genesis

The Sega Genesis, known as the in regions outside of North America, is a 16-bit home video game console developed and sold by Sega.

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Sega Saturn

The is a 32-bit fifth-generation home video game console developed by Sega and released on November 22, 1994 in Japan, May 11, 1995 in North America, and July 8, 1995 in Europe.

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Semaphore (programming)

In computer science, a semaphore is a variable or abstract data type used to control access to a common resource by multiple processes in a concurrent system such as a multitasking operating system.

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Semiconductor device fabrication

Semiconductor device fabrication is the process used to create the integrated circuits that are present in everyday electrical and electronic devices.

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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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Signetics was an American electronics manufacturer specifically established to make integrated circuits.

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Silicon Graphics

Silicon Graphics, Inc. (later rebranded SGI, historically known as Silicon Graphics Computer Systems or SGCS) was an American high-performance computing manufacturer, producing computer hardware and software.

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Sinclair QL

The Sinclair QL (for Quantum leap), is a personal computer launched by Sinclair Research in 1984, as an upper-end counterpart to the Sinclair ZX Spectrum.

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is a Japanese video game hardware and software company, successor to the Shin Nihon Kikaku and current owner of the SNK video game brand and Neo Geo video game platform.

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SS-50 bus

The SS-50 bus was an early computer bus designed as a part of the SWTPC 6800 Computer System that used the Motorola 6800 CPU.

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Stack (abstract data type)

In computer science, a stack is an abstract data type that serves as a collection of elements, with two principal operations.

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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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Steel Gunner

is a first-person shooter arcade game that was released by Namco in 1990; it runs on Namco System 2 hardware, and was the second game from the company to utilize lightguns (the first was Golly! Ghost!, which was released earlier in 1990 and it was also their fourth game to allow scores not ending in "0").

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STMicroelectronics is a French-Italian multinational electronics and semiconductor manufacturer headquartered in Geneva, Switzerland.

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In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit.

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Sun Microsystems

Sun Microsystems, Inc. was an American company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, the Network File System (NFS), and SPARC.

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Sun-1 was the first generation of UNIX computer workstations and servers produced by Sun Microsystems, launched in May 1982.

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The U.S. company SWTPC started in 1964 as DEMCO (Daniel E. Meyer Company).

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Tandy Corporation

Tandy Corporation was an American family-owned leather goods company based in Fort Worth, Texas.

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Terminate and stay resident program

Regarding computers, a terminate and stay resident program (commonly referred to by the initialism TSR) is a computer program that uses a system call in DOS operating systems to return control of the computer to the operating system, as though the program has quit, but stays resident in computer memory so it can be reactivated by a hardware or software interrupt.

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In computer science, the test-and-set instruction is an instruction used to write 1 (set) to a memory location and return its old value as a single atomic (i.e., non-interruptible) operation.

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Texas Instruments

Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally.

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Thomson-CSF was a major electronics and defence contractor.

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TI-89 series

The TI-89 and the TI-89 Titanium are graphing calculators developed by Texas Instruments (TI).

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TI-92 series

The TI-92 series of graphing calculators are a line of calculators produced by Texas Instruments.

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, commonly known as Toshiba, is a Japanese multinational conglomerate headquartered in Tokyo, Japan.

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TRS-80 Model II

The TRS-80 Model II was a computer system launched by Tandy in October 1979, and targeted at the small-business market.

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United States dollar

The United States dollar (sign: $; code: USD; also abbreviated US$ and referred to as the dollar, U.S. dollar, or American dollar) is the official currency of the United States and its insular territories per the United States Constitution since 1792.

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Universal asynchronous receiver-transmitter

A universal asynchronous receiver-transmitter (UART) is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.

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Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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VAX is a discontinued instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC) in the mid-1970s.

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The VAXstation was a family of workstation computers developed and manufactured by Digital Equipment Corporation (DEC) using processors implementing the VAX instruction set architecture (ISA).

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Video game

A video game is an electronic game that involves interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.

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Video game console

A video game console is an electronic, digital or computer device that outputs a video signal or visual image to display a video game that one or more people can play.

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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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The watt (symbol: W) is a unit of power.

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A workstation is a special computer designed for technical or scientific applications.

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The is a home computer created by Sharp Corporation, first released in 1987, sold only in Japan.

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Xenix is a discontinued version of the Unix operating system for various microcomputer platforms, licensed by Microsoft from AT&T Corporation in the late 1970s.

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Zero flag

The zero flag is a single bit flag that is a central feature on most conventional CPU architectures (including x86, ARM, PDP-11, 68000, 6502, and numerous others).

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Zilog Z80

The Z80 CPU is an 8-bit based microprocessor.

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16-bit microcomputers are computers in which 16-bit microprocessors were the norm.

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32-bit microcomputers are computers in which 32-bit microprocessors are the norm.

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7400 series

The 7400 series of transistor–transistor logic (TTL) integrated circuits are the most popular family of TTL integrated circuit logic.

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8-bit is also a generation of microcomputers in which 8-bit microprocessors were the norm.

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[1] https://en.wikipedia.org/wiki/Motorola_68000

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