1. Which interrupt does the secondary serial port of a PC (COM2:) normally use: (a) IRQ0 (b) IRQ3 (c) IRQ4 (d) IRQ7 2. Which interrupt does the system timer on the PC use: (a) IRQ0 (b) IRQ3 (c) IRQ4...

1. Which interrupt does the secondary serial port of a PC (COM2:) normally use: (a) IRQ0 (b) IRQ3 (c) IRQ4 (d) IRQ7

2. Which interrupt does the system timer on the PC use: (a) IRQ0 (b) IRQ3 (c) IRQ4 (d) IRQ7

3. Which interrupt was used to increase the amount of interrupts from 8 to 16: (a) IRQ0 (b) IRQ1 (c) IRQ2 (d) IRQ15

4. Which interrupt is used by the keyboard: (a) IRQ0 (b) IRQ1 (c) IRQ2 (d) IRQ15

5. What does ISR stand for: (a) Interval Status Register (b) Interrupt Status Register (c) Interrupt Service Routine (d) Interrupt Standard Routine