4.1 Types of Software and Interrupts Cambridge IGCSE 0478

What is the primary difference between system software and application software?

• System software provides services required by the computer, while application software provides services required by the user.

• System software runs in the background, while application software requires user input.

• System software is installed by the manufacturer, while application software is installed by users.

• System software is optional, while application software is mandatory.

Which of the following is an example of system software?

• Operating System

• Web Browser

• Word Processor

• Spreadsheet Application

What is the main function of an operating system?

• To manage hardware, software, and user interactions

• To execute only system software

• To provide an internet connection

• To translate programming languages into machine code

Which of the following is not a function of an operating system?

• Compiling code written in high-level languages

• Managing files and directories

• Handling user accounts and permissions

• Allocating memory to running applications

What is firmware?

• Software embedded in hardware that provides low-level control

• Software that allows applications to run on an operating system

• A type of secondary storage device

What is the role of the bootloader in a computer system?

• To initialize the system and load the operating system

• To handle multitasking and memory management

• To provide system security against malware

• To allow users to install new applications

What is an interrupt?

• A signal that causes the CPU to pause its current task and address an urgent request

• A software program that blocks unauthorized access to a system

• A type of error that crashes an application

• A feature that optimizes the computer's performance

Which of the following is an example of a hardware interrupt?

• Pressing a key on the keyboard

• A division by zero error in a program

• Two processes trying to access the same memory location

• A user closing an application

How does the CPU handle an interrupt?

• It stops the current process, executes the Interrupt Service Routine (ISR), and then resumes the original process.

• It permanently stops all processes and requires a system restart.

• It ignores the interrupt until the current task is completed.

• It executes the interrupt only when all other programs are closed.

What is an example of a software interrupt?

• A division by zero error in a program

• Moving the mouse cursor