H446 1.2 Revision Quiz

State what is meant by the term 'real-time'.

• A type of system that processes data as it comes in without delay

• A type of system that stores data for future processing

• A type of system that processes data at scheduled intervals

• A type of system that requires manual input to begin processing

Which type of operating system is suitable for Intensive Care Units due to its ability to handle time-sensitive tasks efficiently?

• Batch Operating System

• Real-Time Operating System

• Multi-User Operating System

• Single-User Operating System

State what type of translator program would be needed to convert the code above into machine code.

Explain how you would correct the program so it outputs the higher of the two numbers entered.

The program does not work correctly. Describe what the program actually does, using the numbers 4 and 9 being entered as an example.

• The program correctly calculates the sum of 4 and 9.

• The program incorrectly calculates the sum of 4 and 9.

• The program outputs the product of 4 and 9.

• The program crashes when entering the numbers 4 and 9.

Which of the following pseudocode correctly outputs the higher of two given numbers, num1 and num2?

• IF num1 > num2 THEN PRINT num1 ELSE PRINT num2

• IF num1 < num2 THEN PRINT num2 ELSE PRINT num1

• PRINT MAX(num1, num2)

• PRINT num1 + num2

Give one reason the phone needs an operating system.

• To manage hardware and software resources

• To improve the physical appearance of the phone

• To increase the cost of the phone

• To decrease battery efficiency

Explain how the developers could use virtual machines.

• For testing applications across different operating systems

• To increase the physical hardware efficiency

• To directly enhance the graphical user interface

• All of the above

What is the primary responsibility of the developer when the CPU receives an interrupt?

• To update the user interface

• To handle the interrupt by executing the appropriate code

• To increase the CPU clock speed

• To shut down the system