Chapter 4

1. You use a DIP switch or jumper to accomplish the physical configuration of a hardware device.

2. Interrupts, base memory, I/O memory, DMA

3. An interrupt enables a hardware device to interrupt the microprocessor to request attention. When the request is satisfied, the microprocessor is free to carry out its responsibilities.

4. IRQ 5

5. False. Not all devices need a reserved area of memory in which to operate.

6. 1F0-1F8

7. DMA enables a device to transfer data directly to RAM without involving the processor.

8. DMA channel 2

9. A software driver is a special program that tells the computer how to communicate with and control a hardware device.

10. False. There is no such thing as the Software Driver Association. Drivers are written for specific operating systems.

11. True, provided that each device has a different I/O address.

12. Direct memory access

13. Input/output

14. Interrupt request