A hard disk is a secondary and storage device that acts like a human brain. What we can call the computer’s brain is because everything we do in the computer stores the hard disk until we delete it.
What is a hard disk?
A hard disk is a storage device that we use to store our data. Which permanently stores the data. It is a circular chip in which digital data is saved. We measure its speed in RPM, obviously the higher the RPM, the higher the speed of REED and WRITE.
Hard disk type
There are two types of hard disks based on data transfer and storage.
(1) Pata Drive
(2) SATA drive
There are two types, depending on how the hard disk connects to the computer system.
(1) the internal hard disk drive
(2) the external hard disk drive
Best external hard drive of 2020
1. Buffalo Minicraft Extreme NFC External Hard Drive
Capacity: 2TB | Interface: USB 3.0
Not only is your data protected from knock-and-drop with a rugged shell, but it also has 256-bit AES security features and NFC (Near Field Communication) features.
2. Western Natural My Passport Ultra 4TB External Hard Drive
Capacity: 4TB | Interface: USB 3.0
The latest generation of the Western Digital My Passport Ultra range of external hard drives is coming in sizes from 1TB to 4TB here, and is among the best external hard drives out there. It features cloud storage and 256-AES encryption with WD’s own software suite.
3. Samsung T5 SSD external hard drive
Capacity: 250GB, 500GB, 1TB, 2TB | Interface: USB Type-C
Samsung has an excellent reputation for external SSDs, thanks to products like the T3, and the T5 builds on its predecessor by adding a faster USB Type-C connection that ejects every last drop of performance from a solid-state drive . If your PC does not have USB Type-C, of course, it is also behind with USB 3.0 and USB 2.0.
4. Adata SD700 External SSD
Capacity: 256GB, 512GB or 1TB | Interface: USB 3.0
It also comes in capacities of up to 1TB, so you don’t have to worry about missing storage space because it uses SSDs – this drive really hits all the right notes.
5. WD My Book Duo 4TB External Hard Drive
Capacity: 4TB | Interface: USB 3.0 x 2
This USB 3.0 drive has many features of a fully NAS device and if you have a router with a USB 3.0 port, you can use it as a network-attached storage device by itself.
The device, which comes with a two-year warranty and includes a higher price, has 256-bit AES hardware encryption, and automatic backup software (WD Smartware Pro).
6. Buffalo Minipark Thunderbolt External Hard Drive
Capacity: 1TB, 2TB | Interface: Thunderbolt, USB 3.0
It provides twice the speed of a standard USB 3.0 drive. It is also not particularly expensive compared to other Vajra drives. Which limits potential speed. It also comes with a USB 3.0 port for people without access to Thunderbolt.
7. Seagate Backup Plus Desktop Drive 5 TB
Capacity: 5TB | Interface: USB 3.0
It comes in a size range of up to 8TB and when it comes to speed with read and write, it defeats the competition.
You also get backup software, and the drive is compatible with both Windows and Mac, although it is formatted out of the box for Windows unless you go for a Mac-specific hard drive.
8. Western Digital My Passport Wireless Pro External Hard Drive
Capacity: 2TB | Interface: USB 3.0 and Wi-Fi
The device has a massive 6,400mAh battery built into it. This allows the drive to be fully wired using either 2.4GHz or 5GHz channels. Of course, not everyone needs the support of a wireless hard drive or SD card, but for those who do, it is almost essential.