EMULATOR definition in the Cambridge English Dictionary

This program used the instructions added by the compatibility feature to trap instructions requiring special handling; all other 704 instructions ran the same on a 7090. The compatibility feature on the 1410 only required setting a console toggle switch, not a support program. ], and the original code is not lost or affected; this way, even data segments can be translated by the recompiler, resulting in no more than a waste of translation time.

Terminals such as the IBM 3270 or VT100 and many others are no longer produced as physical devices. Instead, software running on modern operating systems simulates a “dumb” terminal and is able to render the graphical and text elements of the host application, send keystrokes and process commands using the appropriate terminal protocol. Some terminal emulation applications include Attachmate Reflection, IBM Personal Communications, and Micro Focus Rumba.

definition of emulator

Here you’ll get most accurate definitions, close synonyms and antonyms, related words, phrases and questions, rhymes, usage index and more. But the company folded, and the model became a nostalgia piece, its early fans resorting to running 64 games on emulators. If a math coprocessor is not installed or present on the CPU, it will render a decided interrupt when the CPU executes some co-processor instructions, calling the routines of the math emulator.


Speed may not be desirable as some older games were not designed with the speed of faster computers in mind. A game designed for a 30 MHz PC with a level timer of 300 game seconds might only give the player 30 seconds on a 300 MHz PC. Other programs, such as some DOS programs, may not even run on faster computers. Many emulators are written using “pre-packaged” CPU simulators, in order to concentrate on good and efficient emulation of a specific machine. This is made possible by assigning a variable to each register and flag of the simulated CPU. The logic of the simulated CPU can then more or less be directly translated into software algorithms, creating a software re-implementation that basically mirrors the original hardware implementation. Functional simulation is the use of a computer program to simulate the execution of a second computer program written in symbolic assembly language or compiler language, rather than in binary machine code.

Even before the system is actually designed, it eases the development process by having the ability to identify, restore and fix design flaws. These example sentences are selected automatically from various online news sources to reflect https://globalcloudteam.com/ current usage of the word ’emulate.’ Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. You should remember that there are not much differences for a user when using the emulation method.


This term is known only to a narrow circle of people with rare knowledge. Simply go to the official website and follow the download and install instructions from there. Make sure to check the file format, download from the official website, and install as per instructions. This requires an emulator that runs its simulation almost simultaneously with (perhaps even slightly ahead of?) the events in the external world.

In the sum up we can say that simulator provides fast and easy way to set up a software environment for application testing without the need to mimic actual hardware. It also offers quick and simpler means to create a software environment to test applications without replicating the related hardware. There’s nothing wrong with less accurate but speedy emulators, and such code can run on lower-powered hardware like cell phones and handheld gaming devices. Instead, they played other people’s games together, using emulators to explore the libraries of old consoles. Buses are often not emulated, either for reasons of performance or convenience, and the CPU or memory subsystem interacts directly with virtual peripherals. By owing to the primary use of digital formats, the new media art relies heavily on emulation as a preservation technique.

In their artwork, artists such as Cory Arcangel specialise in resurrecting outdated technology and understand the value of a decentralised and deinstitutionalized mechanism for digital culture preservation. The process of emulation addresses the digital object’s original hardware. If a non-branded printer emulates with a branded printer, the non-branded printer emulation can also run any programme written for a real branded printer and it can even generate the equivalent printing. Computers To imitate the function of , as by modifications to hardware or software that allow the imitating system to accept the same data, execute the same programs, and achieve the same results as the imitated system. These JavaScript emulators allow you to run newer programs on older, incompatible operating systems. The following example illustrates how CPU simulation can be accomplished by an interpreter.

definition of emulator

However, before 1980, “emulation” referred only to emulation with a hardware or microcode assist, while “simulation” referred to pure software emulation. For example, a computer specially built for running programs designed for another architecture is an emulator. In contrast, a simulator could be a program which runs on a PC, so that old Atari games can be simulated on it.

For example, Apple’s iOS “simulator” and Google’s Android “emulator” are both software utilities that run their respective mobile apps in the computer for testing purposes. Emulation techniques are commonly used during the design and development of new systems. It eases the development process by providing the ability to detect, recreate and repair flaws in the design even before the system is actually built. It is particularly useful in the design of multi-core systems, where concurrency errors can be very difficult to detect and correct without the controlled environment provided by virtual hardware. This also allows the software development to take place before the hardware is ready, thus helping to validate design decisions and give a little more control.

How to use emulator in a sentence

The growth of iTunes and its emulators has forced changes in regulations governing the sale of music. The simulator is actually developed in several instances by the company supplying the hardware, which theoretically improves its accuracy. Emulators make it possible to use software exclusive to one device on another.

definition of emulator

Due to their popularity, emulators have been impersonated by malware. Most of these emulators are for video game consoles like the Xbox 360, Xbox One, Nintendo 3DS, etc. Generally such emulators make currently impossible claims such as being able to run Xbox One and Xbox 360 games in a single program. However, there is some major difference between emulators vs. simulators. Both these mobile testing techniques which used to mimic the real thing in a virtual environment.

In order to play classic or forgotten arcade games that were once used to established the market of gaming industry. Before 1980, using the original computer code and data of the games is interpreted by a current-era device and emulates old video game consoles. A hardware emulator is an emulator which takes the form of a hardware device. Examples include the DOS-compatible card installed in some 1990s-era Macintosh computers, such as the Centris 610 or Performa 630, that allowed them to run personal computer software programs and field-programmable gate array-based hardware emulators. The Church-Turing thesis implies that theoretically, any operating environment can be emulated within any other environment, assuming memory limitations are ignored. However, in practice, it can be quite difficult, particularly when the exact behavior of the system to be emulated is not documented and has to be deduced through reverse engineering.

Virtualization hides the physical characteristics of a computing platform from the users, presenting instead an abstract computing platform. At its origins, the software that controlled virtualization was called a “control program”, but the terms “hypervisor” or “virtual machine monitor” became preferred over time. Terminal emulators are software programs that provide modern computers and devices interactive access to applications running on mainframe computer operating systems or other host systems such as HP-UX or OpenVMS.

In this case, interrupts are checked-for before every instruction executed, though this behavior is rare in real emulators for performance reasons . Buses are often not emulated, either for reasons of performance or simplicity, and virtual peripherals communicate directly with the CPU or the memory subsystem. Software or hardware that allows one computer to perform the functions of, or execute programs designed for, another type of computer. Both software testing platforms are useful when you require to test your code across a large range of variations. However, it is not a totally suitable for real-device testing, which you should also perform at critical points, like before releasing software into production.

Apps and Games you can run on an Android Emulator

You can take the service of a professional software testing company for this purpose. Simulators surely have more uses than application testing, such as mathematical modeling in medicine, technological development, etc. It provide an authentic environment that does not require the original system. However, the process of making an emulator is quite tedious and time-consuming. Before knowing the differences between the two, let’s learn the definition of both mobile testing approach.

  • In certain ways, the purpose of new media art emulation is to maintain a digital format such that it can be stored forever and replicated without mistake, such that hardware that ages and becomes redundant is not reliant.
  • Before knowing the differences between the two, let’s learn the definition of both mobile testing approach.
  • There’s nothing wrong with less accurate but speedy emulators, and such code can run on lower-powered hardware like cell phones and handheld gaming devices.
  • However, unauthorized distribution of copyrighted code remains illegal, according to both country-specific copyright and international copyright law under the Berne Convention.
  • However, before 1980, “emulation” referred only to emulation with a hardware or microcode assist, while “simulation” referred to pure software emulation.
  • Instead, they played other people’s games together, using emulators to explore the libraries of old consoles.

This is particularly the case with classic home computers such as the Commodore 64, whose software often depends on highly sophisticated low-level programming tricks invented by game programmers and the “demoscene”. Many printers, for example, are designed to emulate HP LaserJet printers because so much software is written for HP printers. If a non-HP printer emulates an HP printer, any software written for a real HP printer will also run in the non-HP printer emulation and produce equivalent printing. The word “emulator” was coined in 1963 at IBM during development of the NPL definition of emulator (IBM System/360) product line, using a “new combination of software, microcode, and hardware”. They discovered that simulation using additional instructions implemented in microcode and hardware, instead of software simulation using only standard instructions, to execute programs written for earlier IBM computers dramatically increased simulation speed. In addition to simulators, IBM had compatibility features on the 709 and 7090, for which it provided the IBM 709 computer with a program to run legacy programs written for the IBM 704 on the 709 and later on the IBM 7090.

What does emulator mean?

You can install, use, and uninstall any Android application, just like a physical Android device does. It offers Android developers the convenience of testing apps on one emulator by simply changing the device profile rather than switching between multiple physical devices. In the process of digital preservation, the emulation is a technique for overcoming obsolescence.

How to say emulator in sign language?

By using a functional simulator, programmers can execute and trace selected sections of source code to search for programming errors , without generating binary code. This is distinct from simulating execution of binary code, which is software emulation. The first functional simulator was written by Autonetics about 1960 for testing assembly language programs for later execution in military computer D-17B.

The main focus is on the recreation of an original computer environment which is done because of its true desire to retain a closer relation to the maintain the authenticity of a digital object. Further which can be time-consuming and difficult to accomplish, but it returns to be very useful. In computing, an emulator is software or hardware that allows one computer system to function like another computer system. Usually, it allows the host machine to run software or use guest system-designed peripheral devices. Hardware, software or a combination of the two that enables a computer to run programs for another platform. In the past, an emulator was hardware, and a “simulator” was software.

Techopedia Explains Emulator

Logic simulation is the use of a computer program to simulate the operation of a digital circuit such as a processor. This is done after a digital circuit has been designed in logic equations, but before the circuit is fabricated in hardware. That’s helps you to take benefits of the speed and flexibility of simulated and emulated test environments for most software tests while and still getting the deep insight of real-device testing before releasing software to end-users. Emulation is termed as the ability of a computer programme to replicate another programme or system within an electronic device.

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