Chapter 4. Hardware

Terms you’ll need to understand:


I/O ports


Network interface card

Plug and Play

Point to Point

Techniques you’ll need to master:

Memorizing IRQ associations

Troubleshooting hardware conflicts

Viewing SCSI information

Configuring Ethernet devices

Setting IPs manually

Configuring PPP sessions

Configuring system time

Viewing and setting USB configurations


The LPI objectives include several hardware-specific items. You must be familiar with the topics in this chapter to be a good sysadmin.

IRQs and Ports

IRQs are numbered from 0 to 15. Some constants in the numbering are the system timer (0), keyboard (1), and floppy controller (6). Table 4.1 shows common IRQ assignments.

Table 4.1. Typical IRQ Assignments ...

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