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A compact disk (CD) is an optical storage device.
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.
No, it is an optical disc. A hard disk is defined as a device that stores data on spinning magnetic platters. Although a CD is 'hard' (rigid) as opposed to the flexible inside of a floppy disk, that does not classify it as a hard disk.
the answer is in the computer Architecture book. hope this helps.
Of these only CD-ROMs use LASERs to access the data. The others are magnetic storage devices.
Magnetic storage is used on hard drives and floppy disks. Sectors of the disk are charged magnetically and are easily changed later. Optical storage uses a laser to read data. On a cd/dvd, the laser picks up tiny marks made starting in the center and rotating outward.
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
No. Floppy disks are magnetic media that rely on magnetic polarization to write data to the disk much like a hard drive. Unlike CD media they can be erased by a strong magnet field that effectively scrambles the data tracks.
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
Magnetic Storage:Hard disk drive (HDD)Floppy disk drive (FDD)Data Tape backupMiniDV tapeCassette tapeThe magnetic stripe on the back of a credit or debit cardNon-magnetic Storage:Solid-state drive (SSD)Flash memory cardUSB flash driveOptical media (DVD, CD and BluRay)Punch cards
Common hard disks with read/write heads are magnetic storage. The newer SSD (solid state drive) hard disks are not magnetic because there are no read/write heads. Solid state means no moving parts. SSD drives are labeled as such so you know what you are buying.
CD stand for Compact Disk and CD 4016 stand for compact disk my