yes
A normal CD drive is an input device. A CD-R or CD-RW drive would do both input and output.
input
it is input
I would say that a CD-ROM is a form of input, as it is "read only memory" and the data on it can only be read, but not written to. If you're talking about CD-R/CD+R drives, then those would be considered both input and output, as it can read from a CD, and writes to CD.
a CD is an output device that can be used as a storage or input device
A CD or DVD drive is a media device. Data is usually read from it, but data can also be sent to it if it has writing capabilities.
It is neither, CD DVD and hard disk is STORAGE not input or output.
A CD is a storage device.
A CD is a storage device.
That's an output device, because your getting information off the computer and onto the CD.
yes
Input, because you are inserting data into your computer.