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What consists of one or more platters sealed inside a container?
Storage devices consisting of one or more metallic platters sealed inside a container. Internal hard disks are installed inside the system cabinet of a personal computer. It stores the operating system and major applications like word. Frequently used data is read from the hard disk into memory (cache).
What is a stack of metal disk sealed in a box?
The hard disk is not a single flexible disk, but a stack of metal disks sealed in a box. The hard disk and hard-disk drive exist together as a unit and are usually a permanant part of the computer. Because of its great capicity and speed, the hard disk is used to store both programs and data.
What is a thin plate made of plastic usually coated on both sides with a Magnetisable recording material?
In magnetic recording: Magnetic disk devices. Magnetic disks are flat circular plates of metal or plastic, coated on both sides with iron oxide.
What is meant by magnetic disk?
Magnetic Disk is type of secondary memory which is a flat disc covered with magnetic coating to hold information. It is used to store various programs and files. Data can be modified or can be deleted easily in the magnetic disk memory.
What is meant by magnetic tape?
Magnetic tape is a medium for magnetic recording, made of a thin, magnetizable coating on a long, narrow strip of plastic film. Magnetic tape revolutionized sound recording and reproduction and broadcasting. It allowed radio, which had always been broadcast live, to be recorded for later or repeated airing.
Which material is used for coating of platter?
Each platter is usually made from a thin sheet of aluminum or glass. The magnetic coating is generally a ferric oxide or a cobalt alloy, which is, in turn, covered by a thin layer of a very hard material and, finally, by a thin layer of lubricant.
What is Platter in disk?
A hard disk drive platter (or disk) is the circular disk on which magnetic data is stored in a hard disk drive. The rigid nature of the platters in a hard drive is what gives them their name (as opposed to the flexible materials which are used to make floppy disks).
What uses magnetic platters to store data?
A hard disk drive is a non-volatile storage device that stores digitally encoded data on rapidly rotating rigid (i.e. hard) platters with magnetic surfaces.
What is a magnetic storage device that is installed inside the computer?
A hard drive, or hard disk drive, is a magnetic device used to store data. In a Windows computer, the hard drive is usually configured as the C: drive and contains the operating system and applications. The storage capacity of a hard drive ranges from gigabytes (GB) to terabytes (TB).