Hard Disk Drives (HDD) - Fixed Disk
- is a type of computer storage device
- uses magnetic storage as a storage medium
- allows defragmentation
- typically used as secondary memory
HDD - Storage Medium
HDD - Protocols/Interfaces
- Advanced Technology Attachment (ATA) - essential for drives
- Parallel Advanced Technology Attachment (PATA) - obsolete, in favor of SATA
- Serial Advanced Technology Attachment (SATA) - majority use. using AHCI
- Small Computer Systems Interface (SCSI) - not just for drives
HDD - Form Factors
|
2.5-inch |
also known as Small Form Factor (SFF) |
|
3.5-inch |
also known as Large Form Factor (LFF) |