ISA INTERRUPT Meaning and
Definition
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ISA interrupt refers to one of the interrupt signals used in the Industry Standard Architecture (ISA) bus system. The ISA bus is a standard bus architecture commonly used in older personal computers. An ISA interrupt is a specific type of interrupt that is generated by a device connected to the ISA bus in order to gain the attention of the computer's CPU.
Interrupts are important signals that allow devices or programs to interrupt the normal flow of a CPU's operation and request immediate attention. When a device connected to the ISA bus wants to communicate with the CPU, it sends an ISA interrupt signal. This interrupt request is typically initiated by a hardware device, such as a network card, sound card, or peripheral device, but it can also be triggered by a software program.
The ISA interrupt signal is received by the computer's interrupt controller, which is responsible for managing and prioritizing interrupt requests from various devices. Once the interrupt controller receives the ISA interrupt signal, it interrupts the CPU and sends a corresponding interrupt vector to the CPU's interrupt handler. The interrupt handler is a software routine that determines how the CPU should respond to the interrupt, such as by executing a particular task or routine associated with the request.
In summary, an ISA interrupt is a specific type of interrupt signal used in the ISA bus architecture to allow devices connected to the bus to communicate with the CPU. It plays a vital role in facilitating real-time communication and ensuring efficient device management in older personal computers.
Common Misspellings for ISA INTERRUPT
- usa interrupt
- jsa interrupt
- ksa interrupt
- osa interrupt
- 9sa interrupt
- 8sa interrupt
- iaa interrupt
- iza interrupt
- ixa interrupt
- ida interrupt
- iea interrupt
- iwa interrupt
- isz interrupt
- iss interrupt
- isw interrupt
- isq interrupt
- isa unterrupt
- isa jnterrupt
- isa knterrupt
- isa onterrupt
Etymology of ISA INTERRUPT
The term "ISA interrupt" is derived from two different origins: ISA and interrupt.
1. ISA: ISA stands for Industry Standard Architecture, which refers to a computer bus standard used by IBM's original PC/XT and PC/AT models. It was introduced in 1981 and became a widely adopted standard for connecting peripheral devices to the motherboard. The acronym "ISA" initially stood for "IBM PC/AT-bus" but later came to represent "Industry Standard Architecture".
2. Interrupt: In computing, an interrupt is a signal sent to the processor by an external device or software to gain its attention. It is used to indicate that an event requiring immediate attention has occurred or to handle specific tasks efficiently. The term "interrupt" is derived from the Latin word "interruptus", which means "broken" or "stopped abruptly".
