It is called an optical drive because the mechanism for reading and writing information is optical (light) based - it uses lasers.
Because they use a laser lens
CD and DVD disks are used by optical disc drives.
if it is DVD or CDROM both,otherewise only one
CD & DVD burners are optical drives that can write data to CDs or DVDs.
CD's, DVD's, hard drives,etc.
play DVD on CDROM
Most likely you will have to reinstall the drives for the CD and DVD units
CD drivers and DVD drivers are both equally common. CD drives is a drive that reads a compact disc and that is connected to an audio system. A DVD drive is an optical disc storage media format.
Yepp.
Nope... the data on a DVD-ROM is packed much tighter. A CD-ROM cannot read DVD's but a DVD-ROM can read CD's
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.
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
An optical drive is for reading and possibly writing to optical media such as a CD or DVD. It is pretty much used like any other drive in a computer. Older optical drives could only read data and could not burn disks.