Hard Disk Drive (HDD)
Hard disk is the hardware component of computer that stores all of your digital content (documents, pictures, music, videos, programs, application preferences, and operating system) and serve as a storage device. A hard disk drive can be external or internal and a non-volatile (volatile means data is retained when the computer is turned off) computer storage device containing magnetic disks or platters rotating at high speeds. Hard disk is a secondary storage device used to store data. Hard disk drives also having different types according to its size (2.5 HDD, 3.5 HDD, 5.25 HDD), technology (SATA, PATA, SCSI or SAS) and speed (7200rpm, 5400rpm). So in this article I will show you about different type of hard disk drives and their functions. If you want to buy cheap and best quality hard drives for your computer, server, or for daily storage, please visit: digitalmarketstrd.com.
Types of Hard disk drive:
1. Internal hard disk drives (HDD):
An internal hard disk drives contain magnetic disks or platters rotating at high speeds, which are mostly used in computers, servers and with other devices. These type of HDD are cheaper than external type of HDD. Western digital and Seagate are the top main brands in internal hard disk drives. In internal hard disk drives, there are also different types of internal HDD based on their size, technology and speed.
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| internal hard disk |
Different types of internal hard disk drive (HDD):
A. According to its size:
2.5 inch HDD
A type of internal hard disk drives, which are mostly used in laptops as a storage device. These types of HDD are very small in size rather than the HDD of desktop computer. The external type of hard disk drives are also contain and used 2.5 inch size of HDD. The maximum storage capacity of 2.5 inch HDD is up to 1TB.
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| 2.5 inch hard drive |
3.5 inch HDD
These type and size of hard disk drives are very famous than any other size of HDD. The 3.5 inch HDD are mostly used in desktop computers and also used as a backup hard drives because of its size (2TB, 4TB, 8TB, 10TB) is much bigger than the 2.5 inch of HDD. The 3.5 inch size of hard disk drives are also used as a daily basis video recording and regular office work. The 3.5 inch HDD are much bigger and heavier than the 2.5 inch size of HDD.
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| 3.5 inch hard drive |
B. According to its technology:
SATA HDD
SATA (serial advanced technology attachment) hard drive is a new and regular technology than the PATA type of hard drives. The SATA type of hard drives are much faster, reliable than the PATA technology of HDD. The storage capacity of SATA hard drives are from 250GB to 10TB. These type of HDD are very famous in now a day, because SATA HDD are very reliable than the old technology of PATA and also because of storage capacity of SATA HDD is very good and large than the PATA type of HDD.
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| SATA hard drive |
PATA HDD
The PATA (parallel ATA) or IDE (integrated device electronics) hard disk drives contain old technology of HDD. The storage capacity of these type of hard disk drives are from 20GB to 160GB. The connector ribbon cable of these HDD are very fat than the ribbon cable of SATA HDD. The PATA HDD are less reliable and having short life because of heating issues than the SATA hard disk drives. The SATA HDD is the latest and upgraded version of PATA type of hard disk drives.
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| PATA/IDE hard drive |
SCSI or SAS HDD
The SCSI (small computer system interface) or SAS (serial attachment SCSI) hard disk drives are mostly used for server computers. These type Of HDD is reliable and faster than SATA HDD. HPE is the big name in the manufacturing of SAS HDD. If you want to buy these type of HDD, you can visit digitalmarketstrd.com for buying cheap and best quality hard disk drives.
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| SAS Hard drive |
C. According to its Speed:
5400 RPM HDD
The 5400 rpm hard drives are mainly used in digital video recorder as a storage device. These type of Surveillance drives can work for 24/7. The 5400 rpm HDD are reliable than the 7200 rpm hard disk drives and can work for very long time than the 7200 rpm hard disk drives. The 5400 rpm drives have less heating issues and long life spin than the 7200 rpm HDD.
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| 5400 rpm hard drive |
7200 RPM HDD
The 7200 rpm HDD are used as a regular type of hard disk drives. These HDD are faster than 5400 rpm HDD. The performance of these HDD are also good and faster than the 5400 rpm HDD and because of good performance these 7200 rpm HDD are best for gaming and provide good performance for daily basis home or office work.
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| 7200 rpm hard drive |
2. External hard disk drives (HDD):
A type of hard disk drives that can be used as a portable storage device. The connector interface of these HDD are USB port, which means that these type of HDD can work with cell phone, LED TV, computer or other USB port supported devices. These type of hard disk drives are often mostly used as a backup storage drives. Western digital, Seagate, Hitachi provides good and best quality external HDD, also these are the big names in the manufacturing of internal and external hard disk drives. The external HDD can be easily work with computer as an external storage device. If you want to buy cheap and best quality external hard disk drives, you can visit: digitalmarketdtrd.com.
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| External hard drive |
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