3.3 Hard Disk Drive (HDD) Flashcards
Mass Storage Device
Non-Volatile storage device that holds the data when the system is powered down (GB or TB)
2.5 Drive and 3.5 Drive
Reserved foor internal HDDs and SSDs
5.25 drive
Reserved for optical drives, backup tape drives, and floppy disc drives
HDD
Seeking or Retrieving Data: Movement of the actuator and the read/write head to read the data
Buffer size
Internal buffer or cache on a hard disk drive (8MB to 256MB)
Speed is measured in RPM (Revolutions per minute)
5400 RPM - slowest/budget friendly
7200 RPM - faster performance
10,000 RPM - High-performance
15,000 RPM - Highest RPM
SATA 1 Cable
Max speed of 1.5Gbps (150MB/s throughput
SATA 2 Cable
Max speed of 3Gbps (300MB/s throughput
Small Computer System Interface (SCSI)
Supports either 7 or 15 devices in a daisy chain. To configure a device, use a jumper block or select switches. Narrows SCSI 40 Mbps. Wide SCSI up to 320 Mbps