What are the pros and cons of ide?

Pros:

Faster and provides two devices connected on a single IDE or FRC(flat ribbon cable) when the motherboard have only one IDE slot remaining vacant.

Cons:

1)Need to be configured by jumpers properly in order to identify each device to be correctly identified by the motherboard in the BIOS. It is the jumper that helps to distinguish the address of the two devices.

2) IDE does not support a wide range of devices as compared to SATA( Serial Advanced Technology Extendible)