yes it is because you would need another CD ROM to match that one
Yes.
boeth. it depends on your computer.
No. Windows XP can also be installed using PATA or SATA CD-ROM drives.
A DVD-ROM stores more information than a CD-ROM.
cache
Some of them do. Your CD-ROM and hard drive can have molex power connector, or/and SATA power connecter. I think SCSI interface uses molex power connectors too.
The physical installation of a CD-ROM is generally just like installing what else a hard drive. Both drives can be connected using IDE, E-IDE, SATA or PATA connectors.
optical disls
Advantages OF A cd-rom
Lack of room, inadequete cooling, lack of sata connectors. In reality with a big enough case, enough fans and a pci sata card its pretty easy.
CD-ROM burners
A CD ROM drive cannot read a DVD. So it is not possible to use a CD ROM as a DVD ROM. A DVD ROM drive can work with a CD though.