arm

[ärm]

(anatomy)

The upper or superior limb in humans which comprises the upper arm with one bone and the forearm with two bones.

(control systems)

A robot component consiting of an interconnected set of links and powered joints that move and support the wrist socket and end effector.

(electricity)

branch

(engineering acoustics)

tone arm

(geology)

A ridge or a spur that extends from a mountain.

(mathematics)

A side of an angle.

(naval architecture)

The part of an anchor extending from the crown to one of the flukes.

(oceanography)

A long, narrow inlet of water extending from another body of water.

(ordnance)

A combat branch of a military force; specifically, a branch of the U.S. Army, such as the Infantry Armored Cavalry, the primary function of which is combat.

(Often plural) Weapons for use in war.

To supply with arms.

To ready ammunition for detonation, as by removal of safety devices or alignment of the explosive elements in the explosive train of the fuse.

(physics)

The perpendicular distance from the line along which a force is applied to a reference point.

ARM

(processor)

Advanced RISC Machine.

Originally Acorn RISC Machine.

ARM

(company)

Advanced RISC Machines Ltd.

ARM

(publication)

["The Annotated C++ Reference Manual", Margaret A. Ellis and Bjarne Stroustrup, Addison-Wesley, 1990].

ARM

(hardware)

Active Reconfiguring Message.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

ARM

The most widely used microprocessors worldwide. Designed by ARM Holdings plc, Cambridge, England (www.arm.com), the company was founded in 1990 by Acorn Computers, Apple and VLSI Technology. The ARM brand originally stood for Acorn RISC Machine and later Advanced RISC Machine.

In 2016, ARM was acquired by Japan-based Softbank, which agreed to sell the company to NVIDIA in 2020 for $40 billion, pending U.S. and U.K. approval.

ARM chips are 32-bit and 64-bit RISC-based CPUs that are known for their low cost and low power requirements (see RISC). Manufactured under license from ARM by more than a dozen semiconductor companies, billions of ARM-based devices are made every year, including smartphones, tablets, game consoles, e-book readers, netbooks, TVs and myriad other consumer and industrial products.

Very often, an ARM CPU is the processor in a system-on-chip (see SoC). For example, Qualcomm's Snapdragon and NVIDIA's Tegra are ARM-based smartphone and tablet SoCs.

Cortex, SecurCore and StrongARM
ARM processor families are designated by the prefix "ARM" and a digit, such as ARM7, ARM9 and ARM11 or with names such as Cortex and SecurCore, the latter used for secure identification products such as smart cards.

The StrongARM was a high-speed version of the ARM chip that was jointly developed with Digital Equipment Corporation. The SA-100, the first StrongARM chip, was delivered in 1995, and Intel acquired the technology from Digital in 1997. See Intel Mac, Apple M1, StrongARM, Thumb and big.LITTLE.

Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Arm

the upper extremity in man consisting of the shoulder, forearm, and hand (carpus, metacarpus, and phalanges of the fingers). The arm is a more developed grasping extremity in man than in man’s ancient ancestors, the Anthropomorphidae.

The transformation from Anthropomorphidae to man was largely promoted by freeing the anterior extremities, or arms, from locomotion and body-support functions and converting them into organs capable of performing work operations. As the arm became adapted to work, its structure substantially changed, becoming sharply distinct from the structure of the anterior extremity of Anthropomorphidae.

The most significant structural changes occurred in the hand. In Anthropomorphidae the hand has an underdeveloped thumb and the remaining fingers are greatly elongated; in contrast, the human hand is characterized by a powerfully developed thumb that is essential in performing all work operations. The remaining fingers of the human hand are significantly shorter than those of Anthropoidea but are nevertheless capable of the most delicate and differentiated movements.

In man’s development, the development of the arm as a work organ occurred simultaneously with the progressive development of the brain.

The body processes in brachiopods, the tentacles in cephalopods, and the mobile or nonmobile rays of echinoderms are sometimes called arms.

Mentioned in

References in periodicals archive

The AFRH has a long and distinguished tradition of excellence in serving the veterans of the Armed Forces, and we will strive to continue that tradition in the coming years.

The Armed Forces Retirement Home: the history--and future--of caring for our veterans

Armed criminals do the same in encounters with law enforcement professionals to ensure concealment and easy access to their firearms.

Basic principles of safely stopping suspected armed individuals should include some primary considerations.

"Dead right": recognizing traits of armed individuals

In Angola, he has armed both sides of the fighting in a two-decades -long civil war, though he has favored the rebel group known as UNITA, which is under a blanket U.N.

Comrades in arms: meet the former Soviet mobsters who sell terrorists their guns

The leadership of preexisting far-right groups, such as the Posse Comitatus, the Aryan Nations, and the Christian Patriots are attempting to steer the armed militia movement toward these white-supremacist and racist ideologies.

Hunter is a book about parasitic Jews destroying America, and the need for armed civilians to carry out political assassinations to preserve the white race.

Militia nation

The JANUS software is designed for more conventional military operations and was intended for training the mainstay forces of the Croatian armed forces.

The Croatian Armed Forces training simulations program

The armed forces made liberal use of its political -- and military -- clout to advance its business interests.

Clinton's Inept Indonesian Policy

Instead, Spitzer bases his fear of an armed citizenry on a theory of international conflict that says weapons are bad and more are worse.

The Politics of Gun Control

But the position staked out for the administration by Undersecretary of State for Arms Control and International Security John Bolton during the UN small arms conference was an artful denial of the right to armed self-defense.

Their target: your guns; with America on the front line of the terror war, it would be insane to disarm law-abiding citizens. Yet this is what the UN seeks -- and the Bush administration is quietly acquiescing. (On the Home Front)

In its propaganda film Armed to the Teeth, the UN insists civilian disarmament is necessary to prevent tragedies like the 1994 Rwandan genocide, in which as many as 1.1 million people were slaughtered in a 103-day period.

Civilian Disarmament

Of course, such arguments sound rational only to someone who believes that the Second Amendment confirms an individual's unalienable right to own and bear firearms - to someone who believes that an armed citizenry, like a free press, is an important bulwark of liberty.

Extreme prejudice