The spelling of the word "IRQ resource" may seem confusing at first, but it is derived from its pronunciation. The "IRQ" is pronounced as "eye-are-cue," while "resource" is pronounced as "ree-sawrs." The IPA phonetic transcription for "IRQ" would be /aɪɑrˈkjuː/, while "resource" would be /ˈriːsɔːrs/. Together, the word is pronounced as "eye-are-cue ree-sawrs" and refers to a type of hardware resource used in computing systems to manage interrupts from devices.
An IRQ (Interrupt Request) resource is a vital component in computer systems that is responsible for handling hardware interrupts. An interrupt is a signal sent by a device or hardware component to the processor, indicating that it requires immediate attention or service. When an interrupt occurs, the processor suspends its current tasks and diverts its attention to the device generating the interrupt.
The IRQ resource acts as a communication channel, allowing various devices or components to request the processor's attention. Each IRQ resource is assigned a unique number or identifier, ranging from 0 to 15, which is used to differentiate between different types of interrupts.
These interrupts can originate from a variety of sources, such as input/output (I/O) devices like keyboards, mice, network cards, sound cards, and internal components like the disk controller. When an interrupt occurs, the IRQ resource associated with the requesting device is triggered, and the processor executes a specific routine known as an interrupt handler.
The IRQ resource management is essential to regulate interrupt requests effectively and prioritize them based on their urgency or importance. This ensures that different devices can share the processor's attention efficiently without causing conflicts or system errors. The assignment and configuration of IRQ resources are typically handled by the computer's operating system or BIOS (Basic Input/Output System) firmware.
In conclusion, an IRQ resource is a crucial element in computer systems that facilitates the handling and processing of hardware interrupts, allowing devices to communicate their need for immediate service to the central processing unit (CPU).
The term "IRQ resource" is an abbreviation and acronym in the field of computer hardware and operating systems.
The abbreviation "IRQ" stands for "Interrupt Request", which refers to a signal that is sent to the CPU (Central Processing Unit) of a computer to request attention from the processor. Interrupt requests are used to handle time-sensitive tasks and to give priority to certain devices or processes in the system.
The term "resource" in this context refers to the hardware or software components that utilize or require interrupts for their functioning. It can include devices like keyboards, mice, network cards, and other peripherals.
The etymology of the term "IRQ resource" can be traced back to the early development of computer systems and their need to manage and prioritize various tasks and devices. The concept of interrupt requests and their allocation as system resources became significant with the advancement of computer architectures and evolving hardware standards.