bootcamp mac:Boot Camp Tutorial: Install Windows XP on Mac in 5 steps

From Apple :

Boot Camp enables you to install Windows on your Intel-based Mac computer, using a Microsoft Windows install disc that you provide. Windows is installed on its own partition.

 Here are the steps required to install Windows XP on a Mac:

Step 1: Download Mac OS X v10.4.6 (or later) and latest firmware update from Apple Download website.

Step 2: Run the Boot Camp Assistant to DVD.

Step 3: Create a new hard-disk partition [minimum size, 5GB] to make room for Windows XP. All the software and data on the original Mac partition stays intact.

Step 4: Insert your Windows XP and start the instalation  .and format the partition using either NTFS or FAT file formats. Though NTFS is more secure than FAT, you won't be able to write or save files to the Windows volume from Mac OS X.

Step 5. Once XP install process is complete, Boot Camp will restart your system in Windows XP automatically. Now is the turn to install Mac Drivers from the Macintosh Drivers CD that you created in Step 2. Restart.