A hard drive, or hard drive, is a magnetic recording medium used primarily for data storage. Computers are the most frequently used places. Large amounts of information, such as audio, video, software, databases, are saved to the hard drives for use when necessary.
If the computer is turned off or the power is off, all information in the memory is deleted. In order to permanently store the information stored temporarily in the memory, it must be transferred to a magnetic medium.
For this, hard drives are used as harddisk. Hard drives are the type of memory used to store the computer securely, even when it is not connected to the computer or when it is turned off.
All information on the computer is stored in a format stored on the hard drive, but the information that the computer needs is temporarily written to RAM and read from there. The difference is that the RAM is much faster than the hard drive. Hard drives are considerably slower compared to RAM in terms of the speed of access to data, but the low cost makes these types of memory preferable. When buying a hard drive, you need to know how big a hard drive you need. You need to know the space of information such as videos, photos, MP3 files, and a hard drive that is large enough for it.
They are magnetic recording media used for data storage. The most common use of hard drives is computers. Large amounts of information, such as audio, video, software, databases, are saved to the hard drives for use when necessary. Writing data on these drives; Made of metal, glass or plastic, the surface is made of iron oxide or other magnetic material coated on discs. Since all data or information recorded is saved by magnetization, they remain constant until they are deleted. All data or information such as power outages, such as in the case of computer memory chips are not lost so they are called hard drives.
While some hard drives can be plugged in and removed from the computer, the hard drives that support the electricity saving devices remain fixed to the computer. In addition, harddisks are durable and durable for their use. That is the most basic unit that the computer uses to store information. The amount of information that a hard drive can store is measured by MB (Mega Byte), GB (Giga Byte) and TB (Tera Byte). The capacity of today's hard drives varies between 500 GB and 2TB.
How Hard Drive Works
Hard drives, also known as harddisk drives, are rotating disks. The surface of each disc is coated with a magnetic band having a magnetic field effect. Disc plates are made of materials such as aluminum or glass which do not have magnetic properties. There are write / read heads positioned too close to the surface of the discs. According to the previously mentioned structural features of the magnetic head, the organization of the data on this plate is easily achieved.
This data organization is made with ring sets called leri tracks Bu. There are thousands of tracks on the plate. There are also gaps between each ring set of a certain size. These gaps prevent misalignment of the head or interference to the magnetic fields and cause errors. A bit close to the center of the rotating disk is slower than a bit fixed to a central point from a fixed point. All bits must be read at the same speed to avoid errors and deceleration due to the speed difference that occurs when reading the reading head bits. In order to do this, it should be ensured that the gaps between the bits recorded in the segments of the disc are increased. This allows the data to be scanned at a constant rate on a disc that rotates at a constant speed.
What is a Hard Drive?
The hard drive is known as harddisk or HDD. It is one of the types of memory of the computer which allows data to be stored in a magnetic environment in different sizes and in different magnitudes where the information is still stored, even if the power is cut. That is a permanent memory unit. Due to its structure, it is working on disc plates with forming metals.
Computers can have more than one hard drive, or the hard drive can be divided into two or more partitions. The first hard drive is called the C drive. The harddisks that are inserted later take the letters D, E, F respectively. The letter D is also usually used for the CD-ROM drive. When you turn on your computer, the hard drives load the operating system and other software into system memory, and continue to protect the information that you decide to keep permanently, even if your computer is turned off. Hard drives write data that needs to be stored by magnetic change on the disc.