(a)- it is a read-only storage medium. Data once recorded, cannot be erased, and hence the optical disk cannot be reused. (b)- thd data access speed for optical disk is slower than magnetic disks; (c)- optical disk require a more complicated drive mechanism that magnetic disk.
they are susceptible to the environment and daly-use damage
capacity
David Gregg was the inventor of the optical disk.
optical
An Optical Disk
it is a CD(Compact Disk) and a DVD (Digital Video Disk)
an optical disk which stores data optically
no,harddisk is not an optical storage
1965
A sector
Optical disk
optical disk storage are read only so they cannot get infected. But if you burn files which are infected by viruses then the optical disks can spread the virus
The disk drive
yes