What is a hard HDD?

person Posted By: Site Owner On: comment Comment: 0 favorite Hit: 469

There are two types of storage media, and in this article we will review the type hdd

What is a hard HDD?

It is a non-volatile data storage device, and what is meant by the term non-volatile is the devices that store data without losing it even in the event of shutdown, all computers and laptops need a storage device and a hard disk drive or hard disk drive is one of the types of storage devices for computers.

Disk drives are often installed inside desktop computers and portable devices, and there are some other electronic devices that use the washer disk, so that the hard disk is the storage method for files and programs on the computer.

 

Why does the computer need a hard disk?

The main task of computers is to save and process data, and until we do this task, we need a device that saves this data, and the hard disk is the device that the computer uses to save its data, and keeping this data is permanent, unless this data is deleted.

 

How drives work:

We will explain how the drive works in a simplified way. The drive consists of several layers of circular disks placed around a spindle inside an airtight chamber. A drive rotates these plates and another drive moves the reading and writing heads on the disks, and this is how HDD drives work in short.

 

Available storage capacities:

In the beginning, the storage capacities were very small, and the size of the disk drive was very large and with low capabilities, but with the passage of time and the development that we have reached, there have become huge volumes of storage and they are still being lost to this day.

 

Storage capacities start at a minimum from 16 GB to 32 GB to 64 GB and this group of storage capacities has become very old and useless in our current world.

Today, we can say that the minimum storage memory has become 128 GB, followed by 256 GB.

The most popular today is 512 GB, in addition to the popularity of 1 TB or 2 TB.

At the present time, the highest storage capacity of a hard disk drive is 20 terabytes, noting that the actual hard disk space is less than what is advertised because of the space from it to the computer for the system and other files.

 

What is a hard disk made of?

Hard disk components are disk plate, spindle, actuator, motor arm, and read/write head

 

Types of hard disks

An internal hard disk is what is inside a computer or laptop

An external hard disk, which is added to the computer through one of the outlets

The most common problems with hard disks:

Electrical failure If you turn on the hard disk and cannot access the data, it is possible that it was affected by an electrical failure, as the high electrical current leads to damage to some parts of the hard disk, causing the failure of the reading process, for example, it may lead to damage to the electronic circuits of the hard disk, which leads to failure The read/write head is what causes the problem we see in front of us as users.

 

Mechanical failure, usually the failure is due to a shock or fall, which leads to the collision of the reading and writing head with the rotating plate, and this damage is usually irreparable

 

There are several cases of malfunctions affecting the hard disk, some of which can be fixed, and some of them are difficult to repair and cause damage or damage to the hard disk and loss of data.

Tags: hard hdd

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