Browse Definitions :
Definition

ARM processor

Contributor(s): Matthew Haughn, Stephen J. Bigelow
This definition is part of our Essential Guide: How to choose the best hardware for virtualization

An ARM processor is one of a family of CPUs based on the RISC (reduced instruction set computer) architecture developed by Advanced RISC Machines (ARM).

ARM makes 32-bit and 64-bit RISC multi-core processors. RISC processors are designed to perform a smaller number of types of computer instructions so that they can operate at a higher speed, performing more millions of instructions per second (MIPS).  By stripping out unneeded instructions and optimizing pathways, RISC processors provide outstanding performance at a fraction of the power demand of CISC (complex instruction set computing) devices.

ARM processors are extensively used in consumer electronic devices such as smartphones, tablets, multimedia players and other mobile devices, such as wearables. Because of their reduced instruction set, they require fewer transistors, which enables a smaller die size for the integrated circuitry (IC). The ARM processor’s smaller size, reduced complexity and lower power consumption makes them suitable for increasingly miniaturized devices.

ARM processor features include:

  • Load/store architecture.
  • An orthogonal instruction set.
  • Mostly single-cycle execution.
  • Enhanced power-saving design.
  • 64 and 32-bit execution states for scalable high performance.
  • Hardware virtualization support.

The simplified design of ARM processors enables more efficient multi-core processing and easier coding for developers. While they don't have the same raw compute throughput as the products of x86 market leader Intel, ARM processors sometimes exceed the performance of Intel processors for applications that exist on both architectures.

The head-to-head competition between the vendors is increasing as ARM is finding its way into full size notebooks.  Microsoft, for example, offers ARM-based versions of Surface computers. The cleaner code base of Windows RT versus x86 versions may be also partially responsible -- Windows RT is more streamlined because it doesn’t have to support a number of legacy hardwares.

ARM is also moving into the server market,  a move that represents a large change in direction and a hedging of bets on performance-per-watt over raw compute power. AMD offers 8-core versions of ARM processors for its Opteron series of processors. ARM servers represent an important shift in server-based computing. A traditional x86-class server with 12, 16, 24 or more cores increases performance by scaling up the speed and sophistication of each processor, using brute force speed and power to handle demanding computing workloads.

In comparison, an ARM server uses perhaps hundreds of smaller, less sophisticated, low-power processors that share processing tasks among that large number instead of just a few higher-capacity processors. This approach is sometimes referred to as “scaling out,” in contrast with the “scaling up” of x86-based servers.

The ARM architecture was originally developed by Acorn Computers in the 1980s.

See an introductory lecture on ARM processors:

 

This was last updated in January 2015

Continue Reading About ARM processor

Join the conversation

4 comments

Send me notifications when other members comment.

Please create a username to comment.

thanks,
Cancel
arm can be both and neither be both
http://www.firmcodes.com/difference-microcontroller-microprocessor/
Cancel
Here they tell slitely different: http://www.firmcodes.com/microcontrollers/arm/arm-processors-architecture-overview/

Definitely imagine that which you said. Your
favourite justification seemed to be at the internet the easiest factor to be
aware of. I say to you, I certainly get annoyed at the same time
as other folks consider concerns that they just don’t realize about.
You managed to hit the nail upon the highest as well as
defined out the entire thing without having side effect , people could
take a signal. Will probably be again to get more. Thanks
Cancel
I have a problem
I want fine type processor (DUAL CORE ARM DCIC 0907 485728 1137 K6UGNA)  what is it?
Please say me about this processor and and how buy it?
thanks a lot
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

SearchSecurity

  • buffer underflow

    Buffer underflow, also known as buffer underrun or buffer underwrite, is a threat to data that typically occurs when the ...

  • digital signature

    A digital signature is a mathematical technique used to validate the authenticity and integrity of a message, software or digital...

  • denial-of-service attack

    A denial-of-service attack is a security event that occurs when an attacker prevents legitimate users from accessing specific ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • secondary storage

    Secondary storage is storage for noncritical data that does not need to be frequently accessed.

  • Pure Storage

    Pure Storage is a provider of enterprise data flash storage solutions designed to substitute for electromechanical disk arrays.

  • yobibyte (YiB)

    A yobibyte (YiB) is a unit of measure used to describe data capacity as part of the binary system of measuring computing and ...

Close