COMPTIA ITF+ 3.1 Explain the purpose of operating systems

Four Basic Functions of an Operating System (OS)

1. Coordinate hardware components 2. Provides an environment for software to function 3. Monitors System Health 4. Displays data structure and directory of data management

Five Types of Operating Systems

1. Mobile 2. Workstation 3. Server 4. Embedded (Firmware) 5. Virtual (Hypervisor)

Memory Management

Determines how memory is allocated among competing processes. Ample memory keeps OS & apps running quickly.

Disk Management

Managing disk space on drives. Windows OS (Drive Letters using NTFS File Management System); macOS (Drive Mounts using HFS+APFS File Management System); GNU Linux (Drive Mountsusing EXT/XFS File Management System)

Device Management

Monitor Status of all devices, including storage drives, printers, and other peripherals. Devices are all hardware installed on a computer.

Process Management/Scheduling

Most tasks on a computerize ran as a process to include background processes and applications. Task managers help you see everything that's running on a computer and how much each app is consuming. You can end task/kill process to shut down an app that is taking up too much memory or CPU.

Explain the purpose of operating systems

Operating Systems (OS) provides an interface between the hardware and the user.

Access Control/Protection

User accounts are given the right level of system access to perform necessary tasks. Only admins can make system changes

Application Management

the process of managing the operation, maintenance, versioning and upgrading of an application throughout its lifecycle. Installing/uninstalling software and launching/switching applications