Operating Sytems and Interrupts A2

Which of the following are NOT handled by the OS?

• Checking data packet destination addresses

• Handling virtual memory

• Checking email username and passwords

• Recording mouse positions and clicks

• Handling menu choices in a browser

Where is data held before being sent to output devices?

• cache

• ROM

• buffers

• CPU

What is the primary purpose of a device driver?

• to handle the interface between input and output devices and the computer

• to store data receieved or sent from input and output devices and the computer

• to establish network connectivity with the computer

• to prioritise data input and output

Having similar parts of the same application close togther in storage is called

• instance memory organisation

• contiguous memory

• partitioned memory

• segmented memory

When in the fetch decode execute cycle doee the CPU check for interrupts?

• before the next fetch operation

• before the next execute operation

• before the next decode operation

What happens before an interrupt can be executed?

• existing values in the registers are copied to the stack

• existing values in the registers are copied from the stack

• the program counter is pointed to the address of the first instruction forming part of the interrup

• the clock cycle is suspended

What happens after an interrupt has occurred?

• the registers are restored with values in the stack

• the interrupt flag is set to zero

• the priority of the interrupt is identified

• the stack is populated using values from the registers

What is the role of an interrupt in a computer system?

• to pause the current process and execute a higher priority task

• to permanently stop all processes

• to increase the speed of the CPU

• to store data temporarily

What is the function of a buffer in a computer system?

• to increase the speed of data processing

• to temporarily hold data for input/output operations

• to permanently store data

• to manage network connections

Match the following OS tasks with the user actions

• The user save the spreadsheet file

• Input Output Management

• The user moves the mouse on the desktop

• Main memory management

• The user prints the spreadsheet

• Secondary Storage Management

• The user closes the spreadsheet program

• Human Computer Interface