Which software component is responsible for managing hardware resources and providing common services for programs?

Which software component is responsible for managing hardware resources and providing common services for programs?

• A. System Software
• B. Firmware
• C. Operating System (OS)
• D. Application Software

Answer: (C)

This question tests understanding of what sits between applications and hardware and coordinates both. The operating system is the component that manages hardware resources—CPU time, memory, I/O devices—and provides common services that programs rely on, such as file systems, networking, and security features. It acts as an intermediary: applications don’t talk directly to hardware, they use the OS’s interfaces or system calls, and the OS translates those requests into actions, allocates resources safely, and isolates processes so one program’s actions don’t disrupt others. Firmware stays embedded in hardware to initialize and control specific devices, not to run a wide range of programs or manage system resources across the whole computer. Application software runs on top of the OS, using the services the OS provides.

This question tests understanding of what sits between applications and hardware and coordinates both. The operating system is the component that manages hardware resources—CPU time, memory, I/O devices—and provides common services that programs rely on, such as file systems, networking, and security features. It acts as an intermediary: applications don’t talk directly to hardware, they use the OS’s interfaces or system calls, and the OS translates those requests into actions, allocates resources safely, and isolates processes so one program’s actions don’t disrupt others. Firmware stays embedded in hardware to initialize and control specific devices, not to run a wide range of programs or manage system resources across the whole computer. Application software runs on top of the OS, using the services the OS provides.