Objectives and Functions of Operating Systems

What are the objectives of an operating system?

• Convenience of use

• Efficient resource utilization

• Support for software development

• All of the above

What does the OS provide for program development?

• Utility programs

• Hardware access

• File management

• Error detection

What are the two essential elements of a process?

• Program code and data

• Process state and priority

• Memory pointer and context data

• I/O status and accounting information

What is a Process Control Block (PCB)?

• Stores process-related information

• Manages memory allocation

• Tracks I/O devices

• Controls user access

What are the states in the Five-State Process Model?

• New, Ready, Running, Blocked, Exit

• Running, Blocked, Suspended, Terminated

• Ready, Running, Waiting, Exiting

• New, Running, Terminated, Suspended

What is the difference between User Mode and Kernel Mode?

• User Mode is less privileged

• Kernel Mode is for OS control

• User Mode is for user programs

• All of the above

What triggers process suspension?

• The process itself

• The parent process

• The OS

• All of the above

What is the purpose of the I/O Manager in Windows OS?

• Manages I/O device access

• Controls power consumption

• Enforces access control

• Manages memory and paging

What does the term 'process' refer to?

• A program in execution

• A unit of activity

• An instance of a program

• All of the above

What is the role of the Cache Manager in Windows OS?

• Speeds up file access

• Manages I/O device access

• Controls power consumption

• Enforces access control