It's often best to separate physical devices where possible.
EIDE1 for Hard-Drive and EIDE2 for CD-ROM both should be jumpered as master.
The benefits are data throughput and reduced crosstalk primarily.
Each IDE connector on the board supports two channels per. (Two drives) The combination of drives can vary. For instance, hard drive-cdrom, hard drive-hard drive, cdrom-cdrom, ect....ect.
A CDROM drive is neither an input device or an output device. A CDROM drive is a storage device.
A CD, DVD or Blu-ray drive (optical drive) that is installed in the computer.The alternative is an external drive, which is a separate box you connect to the computer using a USB cable.
For performance reasons, a Hard Drive and CD-ROM drive should be on separate IDE channels. This is because both drives on one channel will share bandwidth, making them run at only half the speed if both drives are active at once (i.e. installing a program from CD-ROM). Both drives should be configured as "Master" drives (according to the jumper cables), since they will both be the master for their respective channel.
Flip the laptop over so that the rubber feet are facing up. Remove the screw in the center of the laptop with the picture of a lock near it. This is the only thing keeping the cdrom drive from sliding out of the laptop. If it doesn't come out easily, you may need to power up the laptop, open up the cdrom tray, power off the laptop (while the cdrom tray is still open) then repeat procedure above - however, you'll now have the cdrom tray to use as a handle to pull out the entire cdrom drive.
None, unless you leave a disc in the cdrom drive.
To mount a CD in SCO Open server UNIX: login as root make a directory named cdrom then # mount -f HS,lower /dev/cd0 /cdrom
CDROM drives do not get infected with virus. May be there is a driver problem. You can first run one of the free anti-virus like AVG and enable your CD ROM drive if you want to reinstall OS from a CD/DVD. - Neeraj Sharma
To read CD-ROM's, the technology in a CD-ROM drive is an optical disc drive (ODD). It typically utilizes light to retrieve information on a disc.
Normally you put the original installation CD in the CDrom drive and re-install the program.
CD-Rw
I/O error means 'input / output error' and is generally triggered when you have a drive trying to read some unreadable media, such as a scratched up cdrom or DVD.