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Each side or surface of one drive platter?
a
What is Each side or surface of one hard drive platter?
head
How many cylinders are there for each platter in a Hard drive?
No. of Cylinders = No. of Tracks on each platter multiply by 2 for both sides since each platter stores information on both sides.
What is the function of disk platter in Hard Disk?
Computer hard disk drives may be made of a stack of one or more disks (made out of metal or ceramic) covered in a magnetic "paint". Each of these disks is called a "platter".
If a magnetic drive has four platters how many heads does it have?
Each platter on a hard drive has 2 heads.Every Additional Platter you can multiply x2Example:1 Platter x 2 = 2 Heads2 Platters x 2 = 4 Heads3 Platters x 2 = 6 Heads4 Platters x 2 = 8 Heads5 Platters x 2 = 10 HeadsETC...At least until some new hard drive Architecture comes into place.
What are the concentric magnetic circles that run around a disk platter called?
The concentric magnetic circles that run around a disk platter are called "tracks." Each track is a circular path on the surface of the disk where data is recorded. Data is organized in these tracks, and the read/write head of the disk accesses the information by moving to the appropriate track.
What is the same track on each platter?
A cylinder. Each track on each platter can be thought of as being a ring, thus if you isolated the same track upon each platter you'd have a stack of imaginary rings which would therefore form an imaginary cylinder.
Each surface of a polyhedron is called?
Each surface of a polyhedron is called a face.
How many read write heads are required for each hard disk platter?
2 per platter
What is each surface of a polyhedron is called?
Face
Do hard drives have magnetic cylinders that store information?
Yes. The magnetic 'platters' that store the information are arranged horizontally and are 'read' by an arm that swings over them. Think of an album on a turntable with the needle arm and you have a picture of one single set of such devices. Each drive is comprised of many sets of these in tight alignment, held in place by a spindle. The arm is held to tight tolerances and does not touch the platter but can read and write data to it by changing the magnetic state of the 'bits' on the platter. The density of the bits and the speed of the platter determine size of the drive (capacity) and it's cost.
What are the hard drive components of your computer?
The hard drive is a device used to store data on the computer long-term. Unlike RAM, data written to the harddrive (or HDD) is non-volatile and will not typically disappear when turning the computer off. Harddrives work by using a spinning magnetically reactive platter (or multiple platters), and read and write information using an incredibly tiny, extremely sensitive magnetic needle called a 'head'. This head does not typically come into physical contact with the platter, as doing so will often break the head, causing what is known as a 'crash'. This causes irreversible and permanent damage to the head. The platters spin at high speeds to deliver data quicker, typically 4200 and 5400 RPM for laptops, and 5400, 7200, and 10,000 RPM in desktops. Servers can also have SCSI 15,000 RPM hard drives. Hard drives store data most users commonly interact with- Your operating system (example: Windows), music, movies, games, applications and programs, documents, and more. Hard drives can also be used as temporary RAM in the event of a RAM shortage, however at an incredibly reduced capability. Most modern harddrives average 80 MB/s read and 60 MB/s write, though may vary from model to model and situation to situation. Modern RAM is much faster. Typical DDR2 and DDR3 memory operates at 8000 MB/s or faster. You can see why the HDD is not preferable as use for memory, and thus why a RAM upgrade is the quickest way to speed up a computer IF it is ram deficient. The use of a hard drive as temporary memory is called 'Swapping' 'Paging' or 'Virtual Memory', and is referred to as 'Swapfile', 'Pagefile' and 'Virtual Memory Allocation'. Hard drives are a direct descendant of other magnetic storage media such as Floppy Disk Drives, Drum Drives, and Tape Drives. It provides superior storage capacity, better reliability, and speed to Drum Drives and Floppy Disk Drives. Tape Drives can hold higher capacity (as much as 14.5 TB per tape in top models), but since Tape Drives are sequential (must read front to back, like a VHS or Casette, and must be 'rewound') and harddrives are random access (goes directly to the data), tape drives have been replaced by HDDs for performance purposes. Hard Drives used to be sensitive to magnetic interference, much like floppies and tape drives, but newer drives are shielded from most magnetic interference, unlike floppies and tape drives.
