ISA meaning in Information Technology ?

Information Technology Miscellaneous in Information Technology . 2 weeks ago

  62   0   0   0   0 tuteeHUB earn credit +10 pts

5 Star Rating 1 Rating
What is Instruction Set Architecture mean?

In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer. A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an implementation.

In general, an ISA defines the supported instructions, data types, registers, the hardware support for managing main memory, fundamental features (such as the memory consistency, addressing modes, virtual memory), and the input/output model of a family of implementations of the ISA.

An ISA specifies the behavior of machine code running on implementations of that ISA in a fashion that does not depend on the characteristics of that implementation, providing binary compatibility between implementations. This enables multiple implementations of an ISA that differ in characteristics such as performance, physical size, and monetary cost (among other things), but that are capable of running the same machine code, so that a lower-performance, lower-cost machine can be replaced with a higher-cost, higher-performance machine without having to replace software. It also enables the evolution of the microarchitectures of the implementations of that ISA, so that a newer, higher-performance implementation of an ISA can run software that runs on previous generations of implementations.

If an operating system maintains a standard and compatible application binary interface (ABI) for a particular ISA, machine code will run on future implementations of that ISA and operating system. However, if an ISA supports running multiple operating systems, it does not guarantee that machine code for one operating system will run on another operating system, unless the first operating system supports running machine code built for the other operating system.

An ISA can be extended by adding instructions or other capabilities, or adding support for larger addresses and data values; an implementation of the extended ISA will still be able to execute machine code for versions of the ISA without those extensions. Machine code using those extensions will only run on implementations that support those extensions.

The binary compatibility that they provide make ISAs one of the most fundamental abstractions in computing.

reference
Full Form Category
Illinois Science Assessment Academic & Science
Ionic Strength Adjuster Academic & Science
International Society of Academic & Science
ISA - The International Society for Measurement and Control Academic & Science
Association Internationale de Sociologie Academic & Science
Asociación Internacional de Sociología Academic & Science
International Society of Andrology Academic & Science
Institution of Surveyors, Australia Academic & Science
Indian Society of Anaesthesiologists Academic & Science
International Society of Audiology Academic & Science
Instrumentation Society of A Academic & Science
Iteration Symmetry and Alternation Academic & Science
International Students Association Academic & Science
Islamic Students Association Academic & Science
International Student Association Academic & Science
International Student Advising Academic & Science
Indian Student Association Academic & Science
Internet Services for Alumni Academic & Science
International Standard Architecture Academic & Science
Interface Studio Architects Academic & Science
International Standard On Auditing Accounts and Finance
International Standard of Auditing Accounts and Finance
Mount Isa Airport Code
Information Systems Audit Banking
Individual Savings Account Banking
International Society of Appraisers Business
International Society of Arboriculture Business
International Sociological Association Business
International Society of Automation Business
Irish Software Association Business
Income Share Agreement Business
International Sales Agent Business
Information Sharing Assessment Business
Income Share Account Business
Industry Sub-sector Analysis Business
Isotechnika Pharma, Inc. Business
International Sugar Agreement Business
Investment Savings Account Business
International Safety Auditors Business
Interoperability Standards Advisory Business
Intelligence And Security Agency Business
Internal Security Agency Business
International Standards on Auditing Business
Santa Isabel, S. A. Business
Instrumentation Systems and Automation Chemistry
In Shaa Allah (at Allah's will) Community
Independent Spiritualist Association Community
In Shaa' Allah (God willing) Community
Internationals Schools Assessment Community
International School of the Americas Community
International Schools Assessment Community
Isaiah Community
Integrity, Soul, and Attitude Community
Instantaneous Self-Assessment Community
Investigative Skills Assessment Community
International Surfing Association Community
Industrial Supply Association Community
International Sign Association Community
International Studies Association Community
International Strabismological Association Community
International Slackline Association Community
Input Signal Amplifier Computer Hardware
Information Sharing and Assessment Computing
Internal Security Act Computing
Internet Server Application Computing
Internet Security Association Computing
Internet Service Api Computing
Internet Services Administrator Computing
Information Security and Assurance Computing
Independent Stations Algorithm Computing
Identifier Splitting Algorithm Computing
Informix Server Administrator Computing
Itanium Solutions Alliance Computing
Interactive Services Association Computing
Integrated Service Adapter Computing
Information Security Auditor Computing
Information Sharing Agreement Computing
Information Science Abstract Computing
Informix System Administrator Computing
Instrumentation Society of America Electronics
Idle Speed Actuator General
Intelligent Speed Assistance General
Iveco South Africa General
International Symbol of Access General
Intelligent Speed Advice General
International Security Alliance General
Interplanetary Strategic Alliance General
Independent Savings Account General
Instruction Stable Alert General
International Studies Abroad General
Integrated Systems Analysts General
Inside Surface of Assembly General
Industrial Services of America General
Internal Security Assessor General
Individual Savings Accounts General
Inside Sales Advisor General
Institut de Selection Animale General
Interim Service Agreement General
Institute De Selection Animale General
Institut de Sélection Animale General
Integrated Starter Alternator General
Incline Start Assist General
Information Systems Architecture Governmental
International Federation of the National Standardizing Associations Governmental
Institute Of Self Actualization Governmental
Institute for Self Actualisation Governmental
Intelligent Speed Adaptation Governmental
International Seabed Authority Governmental
Independent Safeguarding Authority Governmental
ISARDA Indian Railway Station
Industry Standard Architecture Information Technology
Instruction Set Architecture Information Technology
Industrias Subsidiarias de Aviación International
International Strategic Analysis International
It's So Annoying Internet
Internet Security Alliance Internet
Independent Safety Assessor Jobs
Interstitial Acute Medical
Intrinsic Sympathomimetic Activity Medical
Intensive Support Amount Medical
International Standardization Agreement Military and Defence
Inter-service Agreement Military and Defence
Intelligence Support Activity Military and Defence
Internet Security and Acceleration Networking
Mount Isa, Australia Regional
Interim Stowage Assembly Space Science
Initial Sun Acquisition Space Science
Iowa Soccer Association Sports
International Slacklining Association Sports
Innovative Slot Allocation Telecommunication

Posted on 09 Dec 2024, this text provides information on Information Technology related to Miscellaneous in Information Technology. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

Take Quiz To Earn Credits!

Turn Your Knowledge into Earnings.

tuteehub_quiz

Tuteehub forum answer Answers

Post Answer

No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.