Do you know what is a hard drive? And What is its function in the laptop or a computer? If not, then read out this blog to know about the proper detail of HDD.
What a Hard drive is?
The hard disk drive (HDD) of a computer or laptop is known as a hard drive or fixed disk. The hard disk drive (HDD) is a non-volatile data storage device. Non-volatile means maintaining the stored data when the computer or laptop is turned off. All computers need a storage device, and hard disk drives are just one example of a type of storage device. A hard disk is located within a drive unit on the computer's motherboard. It is installed internally in the computer systems, mobile devices, consumer electronics, and enterprise storage arrays in data centers. They can store operating systems, software programs, and other files using magnetic disks in the system.
What is the function of the hard disk drive?
The hard disk drive is a secondary storage device of the computer or laptop, which is designed to store data permanently in the system. The secondary storage devices include a large storage capacity as compared to the primary storage devices in computers or laptops. The data stored in a hard disk is retained when our computer system shuts down or is turned off. The data stored in the hard disk can be of many types such as the operating system, installed software, documents, and other files of the computer.
What are the Advantages of a hard drive?
Some advantages or benefits of a Hard Disk Drive are given below:
•One of the significant advantages or benefits of a Hard Disk drive is that its cost is low.
•Another advantage of a Hard Disk is that it is easily available in the market.
•Hard Disk is faster as compared to optical disks.
•The capacity for storing the data in a computer or laptop is usually large in HDDs.
The disadvantages or limitations of a Hard Disk Drive are given below :
•The speed of reading and writing on a Hard disk is slower than the RAM.
•Hard disk drives are noisy.
•Another disadvantage of HDD is that it is energy inefficient.
•Hard disks consume more power.
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The hard disk drive is mainly of three types-:
SATA was introduced in 2003, SATA (Serial Advanced Technology Attachment) is the default interface for most desktop and laptop hard drives. A single drive can range from 500 GB to 16 TB and are available at a lower cost and easily available in the market than any other drive.
1. Lower cost than any other drive.
2. High disk sizes.
1. Not good for laptops or PC
2. Requires regular defragmentation.
2. SSD (Solid state drive )
SSD stands for a solid-state drive. All of the data in SSD is stored on non-volatile flash memory.SSD drives range from about 120 GB to 2 TB, and are about 2-4 times the price of a SATA hard drive of the same size.
1. Faster than SATA
2. More durable, especially for laptops and computers
1. More expensive than SATA Drive
2. Lower size disk or drive
3. NVME (Non-Volatile Memory Express)
Non-Volatile Memory Express or NVMe was released in 2013. NVMe is a type of SSD that's attached to a PCI Express (PCIe) slot on the main board in computers and laptops. These slots were originally designed for graphics cards, so they work incredibly fast.
1. Fastest disk type in the market
1. Extremely expensive drive.
2. Available only for desktop PCs
3. May require replacing main board to get the full benefit.
This blog concludes with the proper detailing about the Hard Drive.