Sistemi Operativi e Laboratorio A.A. 2024/2025

Flashcards on main topics related to Operating Systems.

Operating System Organization

Organization and structure of an operating system, main functionalities.

Shell Parsing

Steps of shell parsing.

Process Definition

Definition of a process, main elements, process states and related system calls.

Context Switch

Context switch, heavy processes and light processes.

Process Interaction

Process synchronization and communication with related system calls.

Signal Management

Management of signals by a process, related system calls, main signals.

Fork/Exec

What happens after fork/exec.

Short-Term Scheduling

Criteria and algorithms for short-term scheduling.

File Allocation Methods

Methods of file allocation in secondary memory and possible access methods.

Kernel File Access

Kernel data structures for accessing files.

File Redirection

Shell and system call redirection to files, shell and system call redirection to pipe piping.

Process Image Allocation

Methods for allocating process images in main memory.

Demand Paging

Paging on demand.

Page Replacement

Page replacement and victim identification.

Swapper vs Pager

Swapper vs pager.

Device Management

Logical organization and functions for device management.

Disk Scheduling

Hard Disk access scheduling policies.

RAID

Redundant Array of Independent Disks.

Memory Protection

Memory protection mechanisms.