Types of Hard Disk

Types of Hard Disk

1. Types of Hard Drive Dr. Kamal Gulati

2. Four types of Hard Drives Parallel Advanced Technology Attachment (PATA) Serial ATA (SATA) Small Computer System Interface (SCSI) Solid State Drives (SSD)

3. 1.) Parallel Advanced Technology Attachment (PATA) These were the first types of hard disk drives and they made use of the Parallel ATA interface standard to connect to computers. These types of drives are the ones we refer to as Integrated Drive Electronics (IDE) and Enhanced Integrated Drive Electronics (EIDE) drives.

4. A hard disk drive (PATA type)

5. 2.) Serial ATA - SATA SATA drives can transfer data faster than PATA types by using serial signalling technology. SATA cables are thinner and more flexible than PATA cables . They have a 7-pin data connection , with cable limit of 1 meter. Disks do not share bandwidth because there is only one disk drive allowed per SATA controller chip on the computer motherboard . They consume less power. They only require 250 mV as opposed to 5V for PATA.

6. A SATA Hard Disk Drive Pin Out

7. 3.) Small Computer System Interface SCSI Devices that are connected in a SCSI have to be terminated at the end. Here are some of their advantages. They are faster. They are very reliable. Good for 24/7 operations. Have a better scalability and flexibility in arrays. Well-adapted for storing and moving large amounts of data.

8. Small Computer System Interface

9. 4.) Solid State Drives They are latest in drive technology that we have in the computer industry. Here are some of their advantages. Faster data access. Less susceptible to shock. Lower access times and latency. Durability. Less power usage.

10. A Solid State Drive (SSD)