Most motherboards have 2 IDE connector, both have a cable with 3 connections, each cable has 1 that connects to yer mobo, 1 for a master, 1 for a slave
slave and master are excactly the same. (as far as I know)
slave and master can be set using small jumpers on your HD's
you cannot use 2 masters or 2 slaves on one IDE channel(cable)
SATA does not use master or slave settings
TheMajorMMX - Intel P200 MMX @ 225Mhz - V-Tech (PcPartner) Baby-AT mb w/ Intel Triton TX chipset - Nvidia Riva TNT2 M64 w/ 16MB - 256MB M-Tec SDRAM - Still running.....