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Worksheets4.3 Interrupts
Total questions: 10
Worksheet time: 11mins
What is an interrupt?
An interrupt is a signal to the processor to tell it that something needs its attention.
Organize these interrupt examples into software or hardware.
Division by 0.
Output required.
Data required from memory.
Data input, e.g. key pressed on a keyboard, mouse click.
Error from hardware, e.g. printer out of paper.
New hardware device connected.
An interrupt has a priority level. What does it mean?
Reorder the following interrupts by priority level.
From highest to lowest.
Power Failure Interrupt - Priority Level: 0 (Highest)
Clock/Timer Interrupt - Priority Level: 1
I/O Device Interrupt (e.g., Disk) - Priority Level: 2
Keyboard Interrupt - Priority Level: 3
Software Interrupt - Priority Level: 4 (Lowest)
What is a program that organizes interrupts into an order based upon priorities?
Interrupt Handler (IH)
Interrupt Service Routine (ISR)
What is a program that retrieves an interrupt and performs the required action(s)?
Interrupt Handler (IH)
Interrupt Service Routine (ISR)
What is a program that retrieves an interrupt and performs the required action(s)?
(a)
What is a program that organizes interrupts into an order based upon priorities?
(a)
Match this expressions with its translation.
中断信号 (zhōngduàn xìnhào)
Interrupt Signal
输入设备 (shūrù shèbèi)
Input Devices
系统内部 (xìtǒng nèibù)
Within the System
来自 (láizì)
Come From
中断优先级 (zhōngduàn yōuxiān jí)
Interrupt Priority
What does interrupt means?
中断 (zhōngduàn)
跑步 (pǎobù)
唱歌 (chànggē)
学习 (xuéxí)
