Categories: GadgetTechnology

What Is The Full Form of HDD?

The Full Form of HDD is Hard Disk Drive.  HDD is a non-volatile data storage device. Non-volatile storage or Non-volatile memory (NVM) means a type of computer memory that can retrieve stored information even after having been power cycled, in other words volatile memory needs constant power in order to retain data.

In a computer or laptop, HDD is commonly used as the main storage device. HDDs often store the operating systems, software programs and other files. Hard Disk Drive does store data magnetically, so the read performance remains steady, regardless of where the data is stored on the drive.

More than 224 companies are producing HDDs historically, though most units are manufactured by Western Digital(WD), Toshiba, Samsung, Seagate and Sony. Because Solid-state drives (SSDs) have higher areal storage density, much lower latency & access times, better reliability and higher data-transfer rates, the sales revenues and unit shipments of HDD are declining.

On December 24, 1954 Hard Disk Drive(HDD) was invented IBM(International Business Machines Corporation) team led by Rey Johnson.

Full Form of HDD is : Hard Disk Drive

HDD | IMAGE SOURCE – WikiHow

HDDs capacity and performance :

Capacity is specified to powers of 1000,as follows:

  • a 1-terabyte (TB) drive has a capacity of 1,000 gigabyte(GB)
  • where 1 gigabyte(GB) = 1 billion bytes

In desktop, the highest-capacity HDDs had 16 TB in late (2019).

Capacity advertised by manufacturerReported capacity
100GB93.1 GB(for Windows)
100GB(for Mac OS)
1TB[1,000 GB]931 GB(for Windows)
1,000 GB(for Mac OS)

Factors for modern HDDs :

  • 3.5-inch, for desktop computers
  • 2.5-inch, primarily for laptops

Hard Disk Drives (HDDs) are connected to systems by standard interface cables such as Universal Serial Bus (USB) , Serial Attached(SAS), SATA (Serial ATA) or PATA (Parallel ATA).

HDD Types :

  • External Hard Disk :-  connect to our computer via a USB or FireWire connection
  • Internal Hard Disk :-   installed within the body (laptop) or tower (desktop) of your compute

Hope that this article will helpful for you. Thanks for visiting The Full Form Dictionary.

Debabrata Sahoo

Hello, world my name is Debabrata Sahoo. I am a technical writer of this blog. You will find free content on the above topic. For more information visit the “ About ” page. Have a great day😊

Recent Posts

What Is The Full Form of NRC?

The Full Form of NRC is the National Register of Citizens. It was prepared for…

2 weeks ago

What Is The Full Form of IIT?

The Full Form of IIT is the Indian Institutes of Technology. IITs are governed by…

4 weeks ago

What Is The Full Form of GOOGLE?

The Full Form of Google is Global Organization of Oriented Group Language of Earth. Google…

3 months ago

What Is The Full Form of DNA?

The Full Form of DNA is Deoxyribonucleic Acid. DNA is the hereditary material in humans…

4 months ago

What Is The Full Form of PhD?

The Full Form of PhD is Doctor of Philosophy. PhD also called as DPhil or…

4 months ago

What Is The Full Form of MBA?

The Full Form of MBA is Masters of Business Administration. MBA is a two years…

4 months ago