# 1. Operating System (OS)
An operating system is a system application that manages computer hardware and software resources. Examples of operating systems include:

- Windows
- macOS
- Linux

# 2. Device Drivers
Device drivers are system applications that manage the interaction between the operating system and hardware devices. Examples of device drivers include:

- Printer drivers
- Graphics drivers
- Sound drivers

# 3. Utility Programs
Utility programs are system applications that perform specific tasks to manage and maintain the computer system. Examples of utility programs include: