What is the area of the hard disk?

In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc. Each sector stores a fixed amount of user-accessible data, traditionally 512 bytes for hard disk drives (HDDs) and 2048 bytes for CD-ROMs and DVD-ROMs.

Which virus infects the area of hard disk that stores valuable information?

MULTIPARTITE VIRUS- Multipartite virus infects both hard disk sectors that is the boot area and programs or executable files as well.

How does a disk store information?

Hard disk stores information in the form of magnetic fields. Data is stored digitally in the form of tiny magnetized regions on the platter where each region represents a bit. This polarity is sensed by integrated controllers built within the hard disk.

What hard drive stores the most data?

The highest-capacity hard drive announced to date, HGST-branded Ultrastar Hs14, unveiled last week, is more than twice as fast and stores 40 percent more data than its predecessor, the company said.

What is the description of hard disk drive?

hard disk, also called hard disk drive or hard drive, magnetic storage medium for a computer. Hard disks are flat circular plates made of aluminum or glass and coated with a magnetic material. Hard disks for personal computers can store terabytes (trillions of bytes) of information.

How many types of hard disk are there?

There are three different kinds of hard drives: SATA, SSD and NVMe.

Which virus infects the boot record?

A boot sector virus is a type of virus that infects the boot sector of floppy disks or the Master Boot Record (MBR) of hard disks (some infect the boot sector of the hard disk instead of the MBR).

How is data stored on a magnetic hard disk?

A magnetic disk drive consists of a number of platters (disks) coated in a magnetic material. They spin at around 7200 rpm . The data is encoded into bits and written onto the surface as a series of changes in the direction of the magnetisation. The data is read by detecting the changes in direction.

How is data stored on a solid state drive?

Solid state drives, as the name suggests, don’t have any moving parts, unlike hard disk drives. Instead, data is stored on a series of NAND chips, which can retain their charge without a power source. Hard disk drives (HDDs) store data on a series of spinning magnetic disks called platters.

What is the largest commercially available hard drive?

As of August 2020, the largest hard drive is 20 TB (while SSDs can be much bigger at 100 TB, mainstream consumer SSDs cap at 8 TB). Smaller, 2.5-inch drives, are available at up to 2TB for laptops, and 5TB as external drives.