Definition

Noun: - Electronic equipment not in direct communication with or under the control of the central processing unit (CPU): This term refers to devices that support a computer system but operate independently or peripherally, without being directly managed by the central processor.

Usage

• This is a technical term used primarily in computing and electronics.
• It describes hardware components that are supplemental to the main computer system.
• It is often used in contexts discussing system architecture, hardware configuration, or technical support.

Examples

Advanced Usage

• Conceptual Use: The term can sometimes be used more broadly to refer to any supporting equipment in a technical system, not strictly limited to computing (e.g., in telecommunications or industrial machinery), though this is an extension of its core computing meaning.
• In System Design: Often discussed in contrast to "core" or "central" equipment. Planning for auxiliary equipment is a key part of infrastructure design.

Variants and Related Words

• Peripheral (device) (n): A more common synonym in computing, specifically referring to input, output, or storage devices connected to and controlled by a computer (e.g., keyboard, monitor). While all peripherals are auxiliary equipment, not all auxiliary equipment may be a peripheral in the strict sense of being controlled by the CPU.
• Ancillary equipment (n): A very close synonym, often used interchangeably in technical and industrial contexts.

Synonyms

• Peripheral device
• Ancillary equipment
• Supporting hardware
• Supplementary gear

Related Phrases

• Auxiliary power unit (APU): A device on a vehicle that provides energy for functions other than propulsion. (Note: This is a related but distinct compound term listed here as a variant.)
• Auxiliary input/output: Refers to secondary channels for data transfer.

Noun

1. electronic equipment not in direct communication (or under the control of) the central processing unit