Understanding Operating Systems

Front

What is the basic role of an operating system?

Back

The basic role of an operating system is to manage computer system hardware and software.

Front

What are the four essential subsystem managers in operating system software?

Back

Memory Manager, Processor Manager, Device Manager, File Manager.

Front

What does the User Interface in an operating system do?

Back

The User Interface allows the user to issue commands to the operating system and manage tasks.

Front

What is the responsibility of the Memory Manager?

Back

The Memory Manager is in charge of main memory, checking validity of memory requests, reallocating memory, and protecting space occupied by the operating system.

Front

What is the difference between RAM and ROM?

Back

RAM (Random Access Memory) requires constant power to hold data and is volatile, while ROM (Read-Only Memory) retains its contents when power is off and holds firmware.

Front

What is the role of the Processor Manager?

Back

The Processor Manager allocates the CPU, tracks process status, and reclaims the CPU when a process is finished.

Front

What does the Device Manager do?

Back

The Device Manager connects with devices, chooses resource allocation methods, and monitors device progress.

Front

What is the function of the File Manager?

Back

The File Manager tracks every file in the system, enforces access restrictions, and allocates space for files.

Front

What are the two primary types of User Interfaces?

Back

Graphical User Interface (GUI) and Command Line Interface (CLI).

Front

What are the five categories of operating systems?

Back

Batch, Interactive, Real-time, Hybrid, and Embedded.