an optical disk has very high storing capacity.inexpensive.has a long life of at least 25 years.written by:"Monty Khanna"
It's called a High-Capacity CD.
Optical use a laser to read and write data .Optical disks have very large storage capacity but they are not fast as harddisk .There are major types of optical disk 1.CD-Rom 2 Worm 3.Eraser Advantage's optical disks has a very high storing capacity ,inexpensive has along life of at least 25 years .
The floppy disk which is commonly referred to as a high density floppy disk is a 3.5 inch disk. It has a storage capacity of 1.44 MB.
an optical disk which stores data optically
David Gregg was the inventor of the optical disk.
Yes. Although there are more high capacity disks out there.
A DVD optical disk can store in excess of 1 GB. A single layer, single sided DVD disc has a capacity of 4.7 GB, while a dual layer, single sided DVD disc has a capacity of 8.5 GB.
CD is compact disk or optical disk where you have the storage capacity of 700 MB(80 minutes of audio)DVD is digital versatile disk where you have the storage capacity of 4.7 GB.(6 times of CD)
A magnetic disk is a disk which stores information magnetically, and is read/written with a small magnetic head (e.g. a hard disk)An optical disk is a disk which stores information optically, usually as a series of pits and peaks, and is read/writMagnetic Storagea) Stores data in magnetic form & it doesn't use laser to read/write datab) It is affected by magnetic field.c) It has high storage capacity.d) Data accessing is high as compared to CD's and DVD's.e) Magnetic storage devices are ; Hard disk , Floppydisk, Magnetic tape etc.Optical Storagea) Stores data optically & uses laser to read/write.b) It is not affected by magnetic field.c) It has less storage than hard disk.d) Data accessing is high as compared to floppy.e) Optical storage devices are ; CD-ROM,CD-R,CD-RW, DVD etc.
What some similarities between optical disk and magnetic disk
An optical disk is one which is "read" and written using light (a laser), such as a compact disk (CD), digital video disk (DVD) or Blu-Ray.
An Optical Disk
it is a CD(Compact Disk) and a DVD (Digital Video Disk)
(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.
A hard disk is magnetic.