1.
To provide hardware, Most modern operating system access the storage devices in below modes
Option 3
To provide hardware, Most modern operating system access the storage devices in 1.system mode 2.user mode...
1. Can an operating system implement the two operational modes (user vs system) if the hardware does not support a mode bit? Explain. 2. Give an example of an operating system that does not implement the dual-mode protection. 3. Explain the main difference that exists between multiprogramming and multitasking.
The VAX/ VMS operating system makes use of four processor access modes to facili-tate the protection and sharing of system resources among processes. The access mode determines:• Instruction execution privileges: What instructions the processor may execute• Memory access privileges: Which locations in virtual memory the current instruc-tion may access The four modes are as follows:• Kernel: Executes the kernel of the VMS operating system, which includes memo-ry management, interrupt handling, and I/ O operations• Executive: Executes many of the operating...
7. Most hardware architectures provide an instruction to return from an interrupt, such as iret. This instruction switches the mode of operation from kernel-mode to user-mode. a. Explain where in the operating system this instruction would be used b. Explain what happens if an application program executes this instruction.
In most multiprogrammed systems, user programs access memory through virtual addresses, while the operating system uses raw physical addresses to access memory. What are the implications of this design on the initiation of I/O operations by the user program and their execution by the operating system?
1. True or False: Hard disk devices that use flash memory chips for storage is called a Solid-State Drive (SSD)? 2. True or False: NTFS is a recognized Linux file system? 3. The software that runs on an Operating System and provides the user with specific functionality is called? a. Application b. Tracert c. Ping d. Kernel 4. This command is used to view a list of running processes. a. FORK b. JOBS c. LIST d. SHOW
One of the most basic tasks of an operating system is to take care of input/output functions, which let other programs communicate with the computer hardware. the I/O functions take requests from the software the user run (the application software) and translate them into low-level requests that the hardware can understand and carry out. In general, an operating system serves as an interface between application software and hardware. discuss any five I/O tasks performed by the Operating System.
A seminar paper for computer peripherals 1-input devices 2-output devices 3- storage devices
true or false 1. Speeding up your system today can be by Performing the system maintenance and adding more memory? 2. Storage devices are identified by names and/or letters? 3. Fixed media faster and less expensive than removable media? 4. Portable hard drive systems do not offer large storage capacities and portability? 5. Physical file representation is the way data stored on the storage media as viewed by the computer? 6. Digital camera Images cannot be transferred to a PC...
Operating Systems 1. Name three ways in which the processor can transition from user mode to kernel mode? 2. What is a process? What is a thread? 3. Briefly define and explain the following terms. Preemptive scheduling Non-preemptive scheduling
Q 2. Assuming a 32-bit operating environment, identify the mode of each operand in the following instructions. (Note: There are two operands in each instruction; identify both modes.) For a memory operand, specify whether it is direct memory mode or register indirect memory mode. Assume that the instructions are in a program also containing the code. .DATA value DWORD ? char BYTE *1. mov value, 100 2. movecx, value 3. mov ah, Oah *4. moveax, (esi] 5. mov [ebx], ecx...