IDE
IDE stands for Integrated Drive Electronics. It is the type of drive or cable used. On an IDE cable, two devices can be connected to the IDE cable. The drive can be a hard drive, CD-ROM drive and other types of drives.
These drives are becoming obsolete. They are not available in the new systems.
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The blue one indicates IDE0 (the 
			first IDE connector) The white one indicates IDE1 (secondary 
			connector). The primary hard drive gets connected to the blue 
			one. CD-ROM, tape drives and in some cases secondary hard drives get 
			plugged into the white one. 
			 
			Because the connectors are notched, the connectors will only go in 
			one direction. The Floppy drive connector (is 
			being phased out and will not be on the newer systems) Looks 
			just like the IDE connectors but smaller, so IDE cables will not 
			plug into them. 
			 
			This technology is used for Desktop and Laptop hard drives. They are 
			also used for CD-ROM drives and a few other devices. 
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The connector can only be plugged in one direction
For help with the jumper, click here
IDE drives and technology is being phased out and being replaced with the SATA technology. You will not see this on newer systems.
IMPORTANT!!!
When you install a drive that is IDE, you must turn the computer off first. For instructions on installing, click here
