Table of Contents
What is the shape of a hard disk?
A hard disk drive platter (or disk) is the circular disk on which magnetic data is stored in a hard disk drive.
How are hard drives arranged?
With regards to HDD geometry: The surface of each HDD platter is arranged in concentric magnetic tracks on each side. To make accessing data more efficient, each track is divided into addressable sectors or blocks as seen in Fig. 41.2. This organization is known as formatting.
What is the purpose of formatting a magnetic disk?
Reformatting is a high-level formatting performed on a functioning disk drive to free the medium of its contents. Reformatting is unique to each operating system because what actually is done to existing data varies by OS. The most important aspect of the process is that it frees disk space for use by other data.
Which of the following is the core of a computer system usually a rectangular box placed on or underneath your desk?
system unit
The system unit is the core of a computer system. Usually it’s a rectangular box placed on or underneath your desk.
What is hard disk and what is its purpose?
Function of Hard disk. The hard disk is a secondary storage device, which is designed to store data permanently. The secondary storage devices include a large storage capacity as compared to the primary storage devices. The data stored in a hard disk is retained when our computer system shuts down.
What does a hard disk do?
What Does a Hard Drive Do? A hard drive is the hardware component that stores all of your digital content. Your documents, pictures, music, videos, programs, application preferences, and operating system represent digital content stored on a hard drive.
Where does the hard disk lie in a computer?
Where is the hard drive found in a computer? All primary computer hard drives are found inside a computer case and are attached to the computer motherboard using an ATA, SCSI, or SATA cable.
What does a hard disk consists of?
A hard disk consists of one or more circular aluminum platters\ , of which either or both surfaces are coated with a magnetic substance used for recording the data. For each surface, there is a read-write head that examines or alters the recorded data.
Why are hard disks round in shape?
The Hard disks are made round in shape to make it smaller, more efficient. Suppose the hard disk in any other shape, lets take a rectangle as an example. So, how do we read a Hard disk? A magnetic sensor is made to move very close (~3 mm spacing) to the disk. This sensor reads the bit as a high or low (or, say, one or zero respectively.)
Why are hard disks called disks?
First, they are called disks because they are round in shape. The Hard disks are made round in shape to make it smaller, more efficient. Suppose the hard disk in any other shape, lets take a rectangle as an example.
What is the importance of the shape of the storage device?
The data may be stored on a hard drive, magnetic tape, memory card, of any storage device. This shape represents a waiting period where no activity is done. This shape is important as the delay may result in adding to the cost of the product or simply delaying the production.
What does the a cylinder represent on a hard drive?
A cylinder represents Direct Access Storage. A hard drive is referred to as direct access storage since any sector on the drive can be accessed. This shape refers to the display on a PC, indicating that the information is being displayed to the user.