CD-ROM / CD-RW Interfaces
Like any other device in a PC, CD-ROM drives need a way of interfacing with the PC. The most common interface used is an IDE channel, using a 40-pin ribbon cable. However, many other interfaces can be used. Most CD-ROM drives interface with a PC via:
The AT Attachment Packet Interface, or ATAPI interface is the most common interface used in CD-ROMs. This interface protocol allows CD-ROM drives to be attached to regular IDE controllers and are normally used by hard disk drives. ATAPI CD-ROM drives are commonly referred to as 'IDE CD-ROMs.'
Because regular IDE command sets cannot be used to control a CD-ROM, the ATAPI protocol was developed and is basically a derivative of the standard IDE command set. The software driver for a CD-ROM is generically known as an ATAPI-compatible
CD-ROM driver. By attaching a CD-ROM drive to an IDE channel, the drive itself must be configured as a master or slave of that channel. Typically CD-ROM drives come from the manufacturer configured as a slave device by default.
Home - Table Of Contents - Contact Us
CertiGuide to A+ (Core Hardware) (http://www.CertiGuide.com/aplush/) on CertiGuide.com
Version 1.0 - Version Date: December 6, 2004
Adapted with permission from a work created by Tcat Houser.
CertiGuide.com Version © Copyright 2004 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.