An operating system (OS) is the essential link between the computer’s hardware and applications in that it handles system resources and receives or relays user inputs. It offers such services as the management of memory, controlling processes, files as well as resources. This report examines key operational features of three widely used operating systems: Linux version, Windows operating system, and Windows server operating system. Part one covers the aspects of process management, the file system, user accounts, and memory, and part two addresses security threats and how each OS protects an organization’s data and systems (Mwiinga, 2023).
1. Process and Service Management
In operating systems (OS) a process means a running program that includes code data set and any other related resources. Tasks are crucial for multiprocessing, by which the OS controls the running of several programs at the same time. A job conversely is a background process that executes persistently for system or user applications, including web servers or Database management systems. These processes and services contribute to ensuring the stability, coordination, and availability of the resources of the system (Shacklett, 2024).
A process in Linux can be controlled by special command prompt programs such as ps to find the ongoing processes, kill to terminate the process, and the top which shows the amount of resources consumed by processes. For Services; using the systemctl command, One can start, stop, and manage services.