Which segment is used to store interrupt and subroutine return address register, interrupt and subroutine return address register are used to stored in the stack segment.

Which segment is used to store interrupt and subroutine return address register?

In a computer’s memory, the interrupt and subroutine return address registers are typically stored in the stack segment.

When an interrupt or subroutine is called, the current state of the program is pushed onto the stack, and the address of the interrupt or subroutine is loaded into the program counter.

When the interrupt or subroutine returns, the previous state is restored by popping the values from the stack, including the interrupt or subroutine return address.

The stack is a segment of memory that is used for temporary storage of data, and is often located in the RAM (Random Access Memory) of a computer. The exact location of the stack segment can vary depending on the architecture of the computer and the operating system being used.

Function of interrupt

An interrupt is a signal sent to the processor by hardware or software to temporarily suspend the current task being performed and switch to a different task. Interrupts are used to handle events that require immediate attention, such as input/output (I/O) operations, hardware errors, and timer signals.

The main function of interrupts is to allow the processor to handle multiple tasks or events simultaneously without wasting time waiting for each task to complete before moving on to the next one. Interrupts enable efficient use of system resources and improve system performance by allowing the processor to respond quickly to high-priority events.


In addition to hardware interrupts, software interrupts (also known as system calls) can be used to request services from the operating system, such as opening a file, allocating memory, or accessing a network resource.

Overall, interrupts play a critical role in modern computing systems, enabling efficient and responsive operation in a wide range of applications and environments.

Function of segment?

In computer memory management, a segment is a portion of a program’s or process’s address space that is used to store specific types of data. A segment typically contains a contiguous block of memory that is dedicated to storing a particular type of data, such as program code, data variables, or the program stack.

Segments are used in memory management systems to organize a process’s memory space into logical units, making it easier to manage and allocate memory efficiently. Each segment is typically assigned a base address, which is used to calculate the absolute memory address of each location within the segment.

The use of segments has largely been replaced by paging in modern operating systems, which provide more flexible and efficient memory management mechanisms. However, segments are still used in some specialized applications, such as embedded systems and real-time operating systems, where they can provide a simpler and more deterministic memory management approach.


Each segment has a fixed size and is allocated a contiguous block of memory within the program’s address space. The starting address of each segment is typically determined by the operating system when the program is loaded into memory.

Overall, the use of segments provides a way to organize and manage a program’s memory space, making it easier to allocate and free memory as needed.


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