Understanding Operating Systems

What is an Operating System?

• A type of computer hardware component.

• A network protocol for data transmission.

• An Operating System is software that manages computer hardware and software resources.

• A programming language used for software development.

Why do we need an Operating System?

• To increase the speed of the computer

• To provide internet access

• To enhance the graphics quality of games

• We need an Operating System to manage hardware resources, provide a user interface, and enable application execution.

Name one function of an Operating System.

• Provide internet access

• Manage hardware resources

• Run applications

• Store user data

What does process management do in an OS?

• Process management only monitors system memory usage.

• Process management handles user interface design and functionality.

• Process management handles the creation, scheduling, and termination of processes in an operating system.

• Process management is responsible for managing hardware devices.

How does an OS manage memory?

• An OS manages memory by compressing all data into a single file.

• An OS manages memory by deleting unused files regularly.

• An OS manages memory by allocating, tracking, and protecting memory for processes, using techniques like paging, segmentation, and virtual memory.

• An OS manages memory by storing all data on external hard drives.

What is file management in an Operating System?

• File management is the process of creating software applications.

• File management refers to the hardware components of a computer.

• File management is the process of handling files in an Operating System, including their organization, storage, retrieval, and protection.

• File management is the method of managing user accounts in an Operating System.

What role does device management play in an OS?

• Device management ensures efficient operation and communication between the OS and hardware devices.

• Device management is only for software applications.

• Device management is unrelated to hardware performance.

• Device management only handles user permissions.

Explain I/O System Management in simple terms.

• I/O System Management is only about managing software applications.

• I/O System Management is the process of coordinating input and output operations between the CPU and peripheral devices.

• I/O System Management refers to the physical layout of computer hardware.

• I/O System Management is the process of storing data in the cloud.

What is secondary-storage management?

• The process of managing primary storage devices.

• A method for optimizing network performance.

• The technique of data encryption for security.

• Secondary-storage management is the process of overseeing data storage and retrieval on secondary storage devices.

How does an Operating System ensure security?

• By using a single user account for all operations

• An Operating System ensures security by implementing user authentication, access control, encryption, and process isolation.

• By disabling all network connections

• By allowing unrestricted access to all files