Chapter 1
IT Concepts and Terminology
Course: Comptia Tech Fc0 U71
Subject: Comptia Tech Fc0U71
Chapter: Applications And Software
An Operating System (OS) is a complex software layer that manages hardware resources and provides services and interfaces to users and applications. Below are the core components and features of an OS that support functionality, usability, and system-level operations.
1. Filesystem Characteristics
The filesystem is a critical component of any operating system. It provides the structure and logic required for the storage, organization, access, and management of data on physical and virtual storage media (e.g., hard drives, solid-state drives, USB flash drives, SD cards, and network drives). It manages data through hierarchical structures like directories (folders) and files, handling how files are named, stored, retrieved, modified, and deleted.
a. Compression
Definition
Compression in a filesystem refers to the process of reducing the physical size of files on disk by encoding data using algorithms that eliminate redundancy. This is especially useful in environments with limited storage space.