3.3 – Hard Drives Flashcards
1
Q
HDD = Hard Disk Drive
A
- Use magnetic head to read / write data onto spinning metal / ceramic plates
- 2.5 & 3.5 inch form factors
- Commonly = connected to SATA interfaces
- Also found in legacy interfaces such as IDE / PATA / SCSI
2
Q
HDD
Advantages
A
affordable in large sizes up to 22 TB
3
Q
HDD
Disadvantages
A
NOT ideal for mobile because moving parts vibrations cause head to crash
–Slower at read / write data
4
Q
Common Use
Laptops / Notebooks
A
Speeds: 5,400 RPMs
Sizes: 2.5” & 3.5”
5
Q
Common Use
Desktops
A
Speeds: 7,200 RPMs
Sizes: 2.5” & 3.5”
6
Q
Common Use
Gaming and Servers
A
Speeds: 10,000 RPMs
Sizes: 3.5”
7
Q
Common Use
Enterprise and Data Centers
A
Speeds: 15,000 RPMs
Sizes: 3.5”
