KwickClips Computer Systems · 42 sec · free
Give a hardware interrupt example.
Short answer. A key being pressed, or a printer out of paper.
What are the three steps?
Save, handle, resume.
Interrupts
| Signal asking for attention |
| CPU saves its task |
| Runs the interrupt handler |
| Resumes the task |
Remember
| Save, handle, resume |
You press a key mid game. What does the CPU do? It gets an interrupt. That is a signal asking for attention. The CPU saves its task. It runs an interrupt service routine. Then it resumes. Remember three steps. Save, handle, resume.
This clip is from the full lesson: The Operating System: Functions, Types and User Interfaces — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 9 Information Technology (402), CBSE Class 10 Information Technology (402), CBSE Class 11 Computer Science (083)
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