Storage media such as a CD read and write information using --
Storage media such as a CD read and write information using - Magnetic strips,Magnetic dots and A laser beam of red light.
Magnetic tape data storage is a system for storing digital information on magnetic tape using digital recording. Modern magnetic tape is most commonly packaged in cartridges and cassettes. The device that performs writing or reading of data is a tape drive. The Basics. Magnetic tape recording works by converting electrical audio signals into magnetic energy, which imprints a record of the signal onto a moving tape covered in magnetic particles. ... As the tape passes by, these pulses align the tiny magnetic particles into patterns, leaving a record of the sound.
Data storage is a critical component of any computer system. Magnetic storage is one of the most affordable ways to store large amounts of data and has been implemented using magnetic tape, floppy disks and hard disk drives.
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. ... Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers.