Assignment 1 Solution
... An interrupt is a hardware-generated change-of-flow within the system. An interrupt handler is summoned to deal with the cause of the interrupt; control is then returned to the interrupted context and instruction. A trap is a software-generated interrupt. An interrupt can be used to signal the compl ...
... An interrupt is a hardware-generated change-of-flow within the system. An interrupt handler is summoned to deal with the cause of the interrupt; control is then returned to the interrupted context and instruction. A trap is a software-generated interrupt. An interrupt can be used to signal the compl ...
Mid1_Revision
... minimal functions in the kernel and implement higher level OS features in other modules (running either in user mode or kernel mode). As monolithic kernel if it can be made bug free can on average perform better than a microkernel system that has some additional communication overhead between compon ...
... minimal functions in the kernel and implement higher level OS features in other modules (running either in user mode or kernel mode). As monolithic kernel if it can be made bug free can on average perform better than a microkernel system that has some additional communication overhead between compon ...
Test1_soln
... it cannot do. This makes the environment abstraction split into two modes: User mode (with user having the control and the CPU), and the Kernel mode (with the kernel having the control and the CPU). System call is expensive, but if it cannot be carried out in the user mode because user lacks authori ...
... it cannot do. This makes the environment abstraction split into two modes: User mode (with user having the control and the CPU), and the Kernel mode (with the kernel having the control and the CPU). System call is expensive, but if it cannot be carried out in the user mode because user lacks authori ...
Chapter 1: Operating System Concepts
... What is the difference between kernel and user mode? Explain how having two distinct modes aids in designing an operating system. Most modern CPUs provide two modes of execution: kernel mode and user mode. The CPU can execute every instruction in its instruction set and use every feature of the hard ...
... What is the difference between kernel and user mode? Explain how having two distinct modes aids in designing an operating system. Most modern CPUs provide two modes of execution: kernel mode and user mode. The CPU can execute every instruction in its instruction set and use every feature of the hard ...
![[Lecture 1, part 3] Kernel interaction with the hardware: Interrupt](http://s1.studyres.com/store/data/014183875_1-7af0f6b03bedcfbf8972c6054b446a98-300x300.png)
[Lecture 1, part 3] Kernel interaction with the hardware: Interrupt
... [Lecture 1, part 3] Kernel interaction with the hardware: Interrupt: Like input / output, user input, between kernel and device driver. Devices call back by interrupts. They are serviced immediately. And they are user transparent. Implementation: Each device only has limited number of interrupt even ...
... [Lecture 1, part 3] Kernel interaction with the hardware: Interrupt: Like input / output, user input, between kernel and device driver. Devices call back by interrupts. They are serviced immediately. And they are user transparent. Implementation: Each device only has limited number of interrupt even ...
Computer Science 4630 - Department of Computer Science
... (b) Send a character to a printer. (c) Perform a trap. (d) Write a value into the interrupt vector. 2. When an operating system is designed in layers, (a) each layer can only use facilities defined in that layer. (b) each layer can only use facilities defined in that layer or higher layers. (c) each ...
... (b) Send a character to a printer. (c) Perform a trap. (d) Write a value into the interrupt vector. 2. When an operating system is designed in layers, (a) each layer can only use facilities defined in that layer. (b) each layer can only use facilities defined in that layer or higher layers. (c) each ...
Virtual Memory Systems
... The _________short term scheduler_________ in an Operating System attempts to select a new process, switch to it quickly and start running it on the CPU. ...
... The _________short term scheduler_________ in an Operating System attempts to select a new process, switch to it quickly and start running it on the CPU. ...