Interrupts are events that occur asynchronously during program execution, often triggered by external devices. When an interrupt occurs, the program counter is temporarily saved, and the central processing unit (CPU) jumps to an interrupt handler routine. After handling the interrupt, the program count...
The pause key is commonly used to temporarily stop or 'pause' video games, movies or other audio/video functions. It is also often used as a safety feature for saving files before turning off your computer. For example, this can be done in order to minimize data loss if there are any ...
In this lesson, you will learn how microprogramming and hardwired control sets are designed in computer architecture. You will be able to describe their advantages and disadvantages and provide examples of each. Related to this QuestionWhat are some examples of digital computers? How did computers ...
What are the SDLC phases? Explain. What is a function in computer programming? What is y after the following statement is executed? x=0; y= ( x less than 0) ? 10 : 20; What is technical architecture? What is the concept of interrupts in a computer? How does the Z80 microprocessor...
The Linux kernel communicates between the hardware and applications via "interrupts." When the hardware wants to interface with the application and broader system, an interrupt is issued across the processor and kernel to manage resources efficiently. ...
An IRQ is served to the processor by programmable interrupt controllers (PICs), which prioritize and manage the interrupts to the processor. A well-known device in personal computer (PC) architecture is the Intel 8259A PIC, which was later supplanted by the advanced PICs (APICs) but continues ...
If floating-point hardware does not have flags of its own, but instead interrupts the operating system to signal a floating-point exception, the cost of inexact exceptions could be prohibitive. This cost can be avoided by having the status flags maintained by software. The first time an ...
The usual way of handling this would be to have the process-context code disable interrupts while searching the routing table. Use of RCU allows such interrupt-disabling to be dispensed with. Thus, without RCU, you pay the cost of disabling interrupts, and with RCU you don't. One can ...
purpose operating systems may take a variable amount of time to respond to a given interrupt, real-time operating systems must guarantee that all interrupts will be serviced within a certain maximum amount of time. In other words, the interrupt latency of real-time operating systems must be ...
purpose operating systems may take a variable amount of time to respond to a given interrupt, real-time operating systems must guarantee that all interrupts will be serviced within a certain maximum amount of time. In other words, the interrupt latency of real-time operating systems must be ...