Operating Systems Course: Ace Interview Questions in 30 days

Offer an interface that lets programs run smoothly by managing CPU, memory, GPU, and disk resources while isolating and protecting them from interference, and hiding hardware complexity through resource arbitration.

Explore how operating systems balance cpu utilization and avoid starvation across seven types—from single processing to real-time—through batch, multi programming, multitasking, multi processing, distributed, and real-time designs.

Discover how multithreading achieves parallel execution by splitting a process into threads, enabling asynchronous tasks. Compare this with multitasking, which uses multiple processes with memory isolation and scheduling.

Explore the two core components of an operating system—user space and kernel space—along with kernel types (monolithic, microkernel, hybrid, nano) and inter-process communication (IPC) concepts.

Explore how system calls bridge user space and kernel space via the system call interface, enabling apps to interact with hardware and manage processes, files, and devices.

Power on the system as the bios/uefi initializes hardware, then a bootloader on the boot device loads the operating system (Windows boot manager, grub, boot.efi).

Explore how 32 bit vs 64 bit architectures differ, including registers, memory addressing, max ram, and the impact on instruction cycles and graphics performance.

Continue through the second section, share an honest review to help other students and improve the course, and use the Q&A for support as you move to the next video.

Explore storage devices, from registers and cache to RAM as primary memory, and contrast secondary storage like hard disks and SSDs in cost, speed, size, and volatility.