Why is glass the best material for magnetic disk?
Hard disk is a common data storage on the hard disk that stores the data is known as platter . Platters are circular disk made of a non magnetic material typically aluminum's Alloy glass or ceramic and are coated with a thin layer (10-20mm) of a magnetic material platters are for their seprated in the tracks
A magnetic disk is a circular disk used to store data using magnetic technology. The disk surface is made up of non magnetic material called substrate.
In a way, yes. The material that makes up the "disk" in a floppy is Mylar, a magnetic substance. Data is stored on the Mylar disk in the form of magnetic charges.
that is a magnetic property of the material content included in the hard disc
A floppy disk is a flexible magnetic storage medium encased in a semi-flexible plastic shell.
A magnetic disk - has a metal coating that stores the data by being written with a small magnet (similar to audio & video tape). An optical disk uses a laser to 'etch' the data onto the surface of a metal-coated glass disk (similar to a CD).
A hard drive is a form of magnetic disk.
A memory device, such as a floppy disk or a hard disk, that is covered with a magnetic coating.
Using laser beams we can access the magnetic disk.
computer use to magnetic disk which generation
A conventional hard disk is magnetic.
Let's make it simple! Think of a CD or DVD; they are optical recorded disks. If instead of a plastic coating like the DC or DVD the disk was coated with a VERY thin layer of magnetic material, now you would have a magnetic disk that you could read or write on just like a cassette recorder or a 8-Track recorder. Now, instead of just 1 magnetic disk you stacked 2 or more magnetic disks… Read More
the platters of a hard disk is stored on base of magnet that's why hdd is called as magnetic disk founded by avneet awasthi
A hard disk drive is the motor and controller of the hard disk, which is the set of platters and spindle. Various users will use these terms in different or identical ways. Technically the disk is just the aluminium or glass disk that is coated with a magnetic surface. But all the computer guys I know equate the terms hard disk with hard disk drive.
The surfaces of disks and magnetic tapes are coated with millions of tiny iron particles so that data can be stored onthem. Each of these particles can act as a magnet. The write/read heads of disk drives or tape drives contain electromagnets that generate magnetic fields in the iron on the storage medium as the head passes over the disk or tape. The presence of a magnetic field represents a '1' bit and its absence… Read More
Magnetic erasing of a computer disk is a physical change. The polarity of the molecules in the storage media is altered, but the material retains the same composition so it is NOT a chemical change.
Previous Answer: two types of magnetic disc are magnetic tapes and compact disc Actually neither of the above are correct. Magnetic "Tape" is exactly that it is a tape, a long slender ribbon which comes in two formats that I know of which are "cartridge" and "reel to reel". Compact Disk is an optical media. There are several types or formats of Magnetic Disk, sizes and capacities vary. Fixed Disk: Hard Disk otherwise referred to… Read More
Hard disk is an example of magnetic disk All-electronic storage device that is an alternative to a hard disk are Electronic disk. Eg: Storage in ipods,cameras etc
What some similarities between optical disk and magnetic disk
A computer hard disk drive is a piece of hardware which is a storage media device used for storing and retrieving digital information and files. It does this using rapidly rotating disks coated with magnetic material.
Yes, most standard hard disks are mechanical magnetic disks. Magnetic media is more of a general term for a family of disk formats including standard hard disk, floppy disks, and zip disks. In the next few years solid state disks will gradually begin to replace magnetic hard disk media.
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/writ Magnetic Storage a) Stores data in magnetic form & it doesn't use laser to read/write data b) It is affected by magnetic field. c) It has high storage capacity. d) Data accessing… Read More
A disk drive.
common uses of magnetic disks
The three primary classes of magnetic storage devices are hard disk drives, floppy disk drives, and magnetic tape machines.
First you will need to do some research to find out what a magnetic disk is. You can use these notes to write the note.
Randomly writing magnetic ones and zeroes to a hard disk is called overwriting.
A hard disk is the physical medium information storage device of most computerized systems. It is an actual disk that rotates at high speed. The surface is coated with magnetic material, and data is stored magnetically on the surface. A tiny read/write head on the end of an arm that can move over the surface of the disk does the reading and writing to transfer the information to and from the medium.
Disk recording mediums Disk recording methods Disk drive transports Disk drive electronics Disk recording specifications
A hard disk drive is a type of magnetic storage device. A magnetic storage device stores data on a magnetized medium. Other types of magnetic storage includes magnetic recording tapes and the stripes on credit cards.
Keep the floppy disk away from magnetic fields.
That is the sound of the magnetic disk, and the disk head.
magnetic tapes are cheaper
It is the magnetic elements in a magnetic disk that are used to store information.
Its called a floppy disk.
It is a circle of magnetic material similar to any kind of recording tape; one or two sides of the disk are used for recording. The disk drive grabs the floppy by its center and spins it like a record inside its housing. The read/write head, much like the head on a tape deck, contacts the surface through an opening in the plastic shell, or envelope. It is a circle of magnetic material similar to… Read More
Randomly writing magnetic ones and zeroes to a hard disk is called overwriting. A security procedure.
Explain the access mechanism of a magnetic disk how is this access mechanism different in RAID level5?
Explain the access mechanism of a Magnetic disk. How is this access mechanism different in RAID level 5?
Widely used Magnetic platters Hard disk drives uses Properties of Magnetism. As known Data is stored in Binary form, the disk uses North/South Polarity created on Magnetic disk platter as 0 or 1 (binary digits). The sensor (Read/Write Head) in Hard disk senses magnetic orientation at a very small area and interprets it as Binary Digit. For storing data on Hard disk the magnetic orientations are changed according to data by Read/Write Head.
Floppy disk is a magnetic storage disk, where in data was stored in records, derived from the tracks and sector formations.
(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.
Floppy disks use magnetic disk to store the data.
Sector is the smallest unit on Hard disk identified & addressed by File System.
We technical people call that a Hard Disk
Both are magnetic media used to store information.
Digital information is stored in microscopic needles as part of the disk's magnetic coating.
by IBM in 1950
A hard disk works in pretty much the same way that the old cassette recorders did, there are 2 magnetic heads per disk and usually 2 disks, when you send information to the hard disk, the magnetic heads write the info onto the disk, and likewise retrieve the same info when needed.