1.1 - CompTIA A+ Core 2

Operating System (OS)

A layer between system hardware and applications that controls underlying device hardware.

File Management

The function of an operating system that allows users to add, delete, and rename files.

Application Support

Part of an operating system that manages memory and swap files for running applications.

Input/Output Support

Provided by an operating system to allow interaction with peripherals like keyboards, mice, and printers.

Windows

Most widely used operating system with many versions; advantages include industry support and software compatibility.

Linux

A free/open-source, Unix-compatible operating system with various distributions and a strong community.

macOS

A desktop operating system developed by Apple for its hardware, known for its ease of use and security.

Chrome OS

An operating system by Google, based on the Linux kernel, that emphasizes web-based applications.

iPadOS

Operating system for Apple iPads, designed for multitasking and optimized for touch interaction.

iOS

Unix-based operating system exclusive to Apple's iPhone, requiring apps to be approved & tested before release.

Google Android

Open-source mobile operating system based on Linux with wide hardware manufacturer support.

End-of-Life (EOL)

The date after which a product or software is no longer supported and doesn't receive updates.

New Technology File System (NTFS)

A file system used by Windows that provides extensive features such as file compression and encryption.

File Allocation Table (FAT32)

A file system that supports larger volumes (up to 2TB) with a maximum file size of 4GB.

Extensible File Allocation Table (exFAT)

Microsoft's file system for flash storage that supports files larger than 4GB and is compatible across major OSs.

Fourth extended filesystem (ext4)

Common file system used in Linux and Android, known for its enhancements over previous versions.

Apple File System (APFS)

The file system used by macOS and iOS, optimized for flash drives and SSDs.

Journaling

A technique used in file systems to log changes before they are committed, enhancing data integrity.