Programs To Access System Resources

Retest the entire connection again to ensure that the arrangementis correct.
There are several three types of hard drive data cables: IDE /PATA, SATA and SCSI.IDE(integrated Drive Electronic)drives, also kwon as PATA (parallel AT Attachment)drives, are commonly found in personal computers. However, manufacturers rarely install IDE/PATA drives in new personal computers as of early 2009:These drives usually are found only in older computers. The IDE/PATA technology was designed in 1986 and has mostly been superseded by SATA technology in new personal computers. SATA (serial advanced technology Attachment) drives are also commonly in personal computers; its technology was developed in 2003.SCSI ((small computer systems are Interface) drives usually are found only in high-end server/ mainframe computers. Although the SCSI technology has existed since 1981, it has been revised numerous times since then; SCSI drives are still used today.
IDE/PATA CABLE
An IDE/PATA hard drive cable is a ribbon cable containing 40 pins. Either one or two devices may be connected to an IDE/PATA cable, and the devices need not be of the same type. For example, an IDE/PATA DVD-R drive may be connected along with an IDE/PATA hard drive on the same cable.

SATA CABLE
A SATA hard drive cable has seven conductors and is smaller than an IDE/PATA cable. A SATA cable connects a single hard drive to a single connector on the SATA controller, which is usually found on the computer’s motherboard.

SCSI CABLE
SCSI cable look similar to IDE/PATA cables in that both drives use ribbon cables.
However, SCSI cables have more pins than IDE cables.
Depending on the SCSI interface, a SCSI cable may have50 or 68 pins (IDE/PATA drives have 40).Like IDE, multiple SCSI devices can be connected to a single channel through “daisy chaining.” Depending on the SCSI interface, as many as 7 or 15 devices may be connected to a single SCSI channel.