Operating Systems Overview

These flashcards cover essential concepts related to operating systems, including definitions, functions, and system architecture.

What is the role of an operating system (OS)?

An OS acts as an intermediary between a user and the computer hardware, executing user programs and making solving user problems easier.

What are the key goals of an operating system?

To execute user programs, make the system convenient to use, and use hardware efficiently.

What is the 'kernel' in an operating system?

The kernel is the core program that runs at all times on the computer.

What are the four main components of a computer system?

Hardware, Operating System, Application Programs, and Users.

What is Process Management in the context of an operating system?

Process Management involves creating, deleting, suspending, resuming processes, and managing synchronization and communication.

What function does Memory Management serve in an OS?

Memory Management is responsible for tracking memory usage and allocating/deallocating memory space.

What is the purpose of Storage Management in an operating system?

Storage Management provides a uniform logical view of information storage, including files and directories.

How does the I/O subsystem function within an OS?

The I/O subsystem hides the peculiarities of hardware devices and manages buffering, caching, and spooling.

What is the significance of protection and security in an OS?

Protection controls access to resources, while security defends against internal and external attacks.

What is the structure of a computer system?

It includes CPUs and device controllers connected via a common bus for concurrent execution.

What does it mean for an operating system to be interrupt driven?

It means that the OS uses interrupts to signal and manage events or operations that require immediate attention.

What is caching in the context of storage systems?

Caching involves copying information into a faster storage system to improve access times.

What is the difference between symmetric and asymmetric multiprocessing?

In symmetric multiprocessing, all processors can perform any task, while in asymmetric multiprocessing, each processor is assigned a specific task.

What does dual-mode operation provide for an operating system?

Dual-mode operation allows the OS to protect itself and other components by using user mode and kernel mode.

What is a real-time embedded system?

A special-purpose system with fixed time constraints.

Describe the Client-Server model in computing.

A computing model where servers respond to requests from clients.