Again a lens cleaner will work.
A normal CD drive is an input device. A CD-R or CD-RW drive would do both input and output.
The second drive may be defective or have a dirty laser. Use a special lens-cleaner CD that has small brushes on it to clean the disk.
A clean installation is a installation where the hard drive is reformatted and windows is installed fresh from the DVD or CD it came from.
You would need another device to connect to it.
Unless the CD or DVD tray has a method of keeping the disc against the drive unit, the disc won't be able to spin. In this case, the DVD/CD drive would not function properly.
I would suggest that you check the drivers for your CD ROM Drive and if it is connected properly. You should also make sure you are using the correct type of CD for your Drive.
Not necessarily. You can have a CD/DVD reading drive that does not write.
the CD drive has lasers which read the CD, so the CD has pieces that can be read.
put toothpaste on the CD then clean it off with water
The specification of X in the CD drive is the number of times faster the CD drive can read from the original CD audio drives which read at a speed of 150 KBps. So 2X would be (150 KBps times 2 or 300 KBps).
Yes. CD-RW drives are capable of writing to CD-R discs as well.
The drive tray is the flat panel that slides out of the CD drive, onto which the CD is inserted.