Operating System Concepts and Functions

The video tutorial provides an in-depth look at operating systems, covering their functions, types, and components. It explains the role of device drivers, process management, and memory management, including system calls and memory allocation. The tutorial also delves into virtual memory, swapping, and the structure of process memory. Additionally, it discusses process states, file systems, and interprocess communication mechanisms.

What is the primary role of an operating system?

• To provide internet connectivity

• To manage hardware and run other programs

• To execute user applications directly

• To design software applications

Which of the following is a Unix-like operating system?

• Windows 8

• Linux

• MS-DOS

• Android

What is the function of a device driver?

• To allocate memory to processes

• To execute system calls

• To manage a specific hardware device

• To provide a user interface

How does the OS manage multiple processes on a single CPU core?

• By executing processes in a random order

• By running all processes simultaneously

• By dedicating a core to each process

• By alternating between processes and OS code

What is a system call?

• A type of device driver

• A request from a process to the OS for a service

• A way to execute user applications

• A method to allocate memory

What is the purpose of the stack in process memory?

• To store the process code

• To store local variables and function calls

• To store system calls

• To store global variables

What is a memory leak?

• When the OS runs out of memory

• When a process accesses another process's memory

• When memory is not properly deallocated

• When a process uses more memory than allocated

How are files organized in a file system?

• In a random order

• In a single directory

• In a hierarchy of directories and files

• In a flat structure

What is the role of interprocess communication (IPC)?

• To provide a user interface

• To execute system calls

• To allow processes to communicate with each other

• To manage memory allocation

What is a partition in the context of file systems?

• A type of device driver

• A method of data encryption

• A section of a drive's storage space

• A type of file