OS_unit1_2024

What else is a command interpreter called?

• prompt

• kernel

• shell

• command

Which of the following is a single-user operating system?

• 1. Windows

• 1. MAC

• 1. Ms-Dos

• 1. None of these

Which of the following is not application software?

• 1. Windows 7

• 1. WordPad

• 1. Photoshop

• 1. MS-excel

Who provides the interface to access the services of the operating system?

• API

• System Call

• Library

• 1. Assembly instruction

Where are placed the list of processes that are prepared to be executed and waiting?

• Job queue

• Execution queue

• Process queue

• Ready queue

Which of the following does not interrupt the running process?

• 1. Timer interrupt

• 1. Scheduler process

• 1. Power failure

• 1. Device

Which of the following component does not belong to PCB (Process Control Block)?

• 1. CPU registers

• 1. CPU scheduling information

• 1. Operating System information

• 1. Accounting information

The PCB is identified by ___________.

• 1. Binary Number

• 1. Real-Number

• 1. Store block

• 1. Process ID

What is the ready state of a process?

• when process is unable to run until some task has been executed

• when process is scheduled to run after some execution

• when process is using CPU

• none of the above

In operating system, each process has its own __________

• open files

• pending alarms, signals, and signal handlers

• address space and global variables

• all of the mentioned