Operating System
System software that manages hardware resources and provides services to applications.
Also: OS
Definition
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. It acts as an intermediary between users and the computer hardware, handling tasks such as process scheduling, memory management, file system management, device drivers, and security. Common operating systems include Linux, Windows, and macOS.
Example
“When multiple programs run simultaneously on a computer, the operating system's scheduler rapidly switches CPU time among them, giving the illusion of true parallelism while managing memory to prevent programs from interfering with each other.”
Usage Examples
- 1
“The team applied operating system best practices to improve their computer science outcomes significantly.”
- 2
“Understanding operating system is essential for anyone building a career in STEM.”
When & How to Use
Use 'Operating System' when working in Computer Science contexts where an operating system (os) is system software that manages computer hardware and software resources and provides common services for computer programs.
- ▸Applying operating system principles during a computer science project or initiative
- ▸Explaining operating system to a junior team member or stakeholder unfamiliar with STEM
- ▸Evaluating options or proposals using operating system as a decision-making criterion
Etymology & Origin
The term 'Operating System' derives from professional usage and entered STEM professional usage as the field formalised in the 20th century.
History & Evolution
The concept of operating system has evolved alongside STEM. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of computer science in the mid-20th century. Today, operating system is a standard part of STEM practice globally.
Synonyms
- OS
- system software
- platform software
Antonyms / Opposites
- application software
- user software
Images
CC-licensed · free to useVideo
Related Terms
- Process Scheduling
- Memory Management
- File System
- Kernel