what is hard disk information
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- A hard disk drive (HDD), hard disk, hard drive or fixed disk is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks coated with magnetic material.
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"Whatâs the difference between a ""disc"" and a ""disk?""" A disk refers to magnetic media, such as a floppy disk, the disk in your computer's hard drive, an external hard drive. Disks are always rewritable unless intentionally locked or write-protected. You can easily partition a disk into several smaller volumes, too.
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DISK DRIVE Noun. 1. hard drive-computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it. disc drive, disk drive, Winchester drive. drive - (computer science) a device that writes data onto or reads data from a storage medium. fixed disk, hard disc, hard disk-a rigid magnetic disk mounted permanently in a drive unit.
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hard disk A hard disk is really a set of stacked disks, each of which, like phonograph records, has data recorded electromagnetically in concentric circles or tracks on the disk.
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hard copy (printout) A hard copy (or hardcopy) is a printed copy of information from a computer. Sometimes referred to as a printout , a hard copy is so-called because it exists as a physical object. The same information, viewed on a computer display or sent as an e-mail attachment, is sometimes referred to as a soft copy . Related Terms.
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Computer Concepts and Terminology Zip Disk. Flash Drive. CD. DVD. A hard disk drive contains disks made of metal and coated with a metal oxide that can be magnetized. A tiny electromagnetic read/write head on the end of a seek arm magnetizes tiny spots on the disk to store data.
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Disk image Disk images, in computing, are computer files containing the contents and structure of a disk volume or an entire data storage device, such as a hard disk drive, tape drive, floppy disk, optical disc or USB flash drive.
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What is a hard disk? What function does it have in a computer? Standard Hard Disk Drive. A hard disk drive consists of circular metal disc-shaped platters which store the computer's data. An actuator arm runs between the platters, reading data off the hard drive. These platters constantly spin while the computer is on, almost like a vinyl record player. HDDs are the most common and inexpensive form of hard drive. Solid State Drive. Unlike a hard disk drive, a solid state drive has no moving parts and the data is stored on flash memory chips instead of metallic platters. SSD technology is faster than HDD and less prone to failure since there are no moving parts. Since SSDs are newer technology, they cost more per unit of storage than an HDD.
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Jan's Computer Basics: Types of Magnetic Disks. Hard Disks. A hard disk consists of 1 or more metal platters which are sealed inside a case. The metal is one which is magnetic. The hard disk is usually installed inside the computer's case, though there are removable and cartridge types, also. Technically the hard drive is what controls the motion of the hard disks which contain the data. But most people use hard disk and hard drive interchangeably.
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What Is a Hard Disk Drive? Hard Disk Drive Physical Description A hard drive is usually the size of a paperback book, but much heavier. The sides of the hard drive have predrilled, threaded holes for easy mounting in the 3.5-inch drive bay in the computer case.
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Areal density (computer storage) Areal density (computer storage) - Storage device classes. 1  Hard disk drives store data in the magnetic polarization of small patches of the surface coating on a disk. 2  Compact discs (CDs) store data in small pits in a plastic surface that is then covered with a thin layer of reflective metal.
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What is a hard disk? What function does it have in a computer? A hard disk drive (sometimes abbreviated as Hard drive, HD, or HDD) is a device used to permanently store and also retrieve information. There are many variations, but their sizes are generally 3.5 and 2.5 for desktop and laptop computers respectively.
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- The hard disk drive is the location on our computer where the applications, files, folders and other data are permanently stored. The hard disk drive can store enormous amounts of information. For each application that is open, data is accessed from the hard disk to the random access memory (RAM) for rapid processing.
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- An optical disk is a high-capacity storage medium. An optical drive uses reflected light to read data. • To store data, the disk's metal surface is covered with tiny dents (pits) and flat spots (lands), which cause light to be reflected differently. • When an optical drive shines light into a pit, the light cannot be reflected back.
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- hard drive noun [C] uk us also hard disk IT › a disk on which a large amount of information can be stored and used by a computer or other piece of electronic equipment:
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- hard drive capacity. The amount of storage on a hard disk, measured in gigabytes and terabytes. Hard drive capacity is generally measured by the amount of data users need to store, which is usually much greater than the space applications take up. For example, photos and especially video are considerably larger than text documents. We've Come a Long Way!
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- Disks. A disk refers to magnetic media, such as a floppy disk, the disk in your computer's hard drive, an external hard drive. Disks are always rewritable unless intentionally locked or write-protected.
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Hard Drive The term hard drive is actually short for hard disk drive.. The term hard disk refers to the actual disks inside the drive. However, all three of these terms are usually seen as referring to the same thing -- the place where your data is stored. Since I use the term hard drive most often, that is the correct one to use.
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- magnetic disk. A memory device, such as a floppy disk or a hard disk, that is covered with a magnetic coating. Digital information is stored on magnetic disks in the form of microscopically small, magnetized needles.
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- A hard drive is nothing more than a magnetised storage area. Your Operating System is stored on your hard drive, as well as all your software programmes, like Microsoft Word. The hard drive is actually a few circular disks stacked one on top of the other.
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Removable Storage Reference The hard drive is the main area of mass storage on your computer. Generally the hard drive is fixed within the computer, making it removable, but not easily portable. Storage capacities can range into the gigabytes, and over the years we've seen hard drives come down in price considerably.
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Hard Disk Drives: Glossary of Computer Terminology Like their namesakes, Easter Eggs can be quite elusive and hard to find. Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.) is an interface between a computer's start-up program or BIOS (basic input/output system) and the computer hard disk. It is a feature of the Enhanced Integrated Drive Electronics (EIDE) technology that controls access to the hard drive.
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hard drive Definition of hard drive. : a data-storage device consisting of a drive and one or more hard disks.
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What is a hard drive? A hard drive is the main component that the computer relies on. On the hard drive, the operating system is stored, also includes your pictures, videos, music, documents, etc.
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Hard drive Hard drive components. As can be seen in the above picture, the desktop hard drive consists of the following components: the head actuator, read/write actuator arm, read/write head, spindle, and platter. On the back of a hard drive is a circuit board called the disk controller. Tip: New users often confuse memory (RAM) with disk drive space. See our memory definition for a comparison between memory and storage.