Whenever a process needs I/O to or from a disk it issues a___________
A)system call to the cpu
B)system call to the operating system
C)a special procedure
D)all of the mentioned

Question

Whenever a process needs I/O to or from a disk it issues a___________    
A)system call to the cpu
B)system call to the operating system
C)a special procedure
D)all of the mentioned

Quizplus · Accepted Answer

When a process requires I/O operations with a disk, it issues a system call to the operating system. The operating system then manages the request and performs the necessary actions to read from or write to the disk. System calls provide an interface between a process and the operating system.

Whenever a Process Needs I/O to or from a Disk