SSD vs Hard Drive vs Hybrid Drive
PowerCert Animated Videosγ»6 minutes read
Computers have primary (temporary) and secondary (permanent) memory, with internal storage drives needing to be non-volatile to retain data when power is off. Solid state drives (SSDs) are faster and more energy-efficient than magnetic hard drives, utilizing flash memory chips and having no moving parts.
Insights
- Primary memory in computers, such as RAM, is temporary and used for immediate processing, while secondary memory, like storage drives, is permanent and retains data even when the power is off.
- Solid state drives (SSDs) are faster and more energy-efficient than traditional magnetic hard drives, as they have no moving parts and use flash memory chips, enhancing overall performance and reliability.
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Recent questions
What are the two types of computer memory?
Primary (RAM) and secondary (storage drives)
Why do internal storage drives need to be non-volatile?
To retain data when power is off
What is the difference between magnetic hard drives and solid state drives?
Magnetic drives have rotating disks, SSDs have no moving parts
How do solid state hybrid drives (SSHDs) work?
Combine magnetic disks and flash memory for speed and capacity
What are the advantages of solid state drives (SSDs) over magnetic hard drives?
Faster, more energy-efficient, no moving parts
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Summary
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Computer Memory: Primary vs. Secondary Storage
- Computers have two types of memory: primary (temporary, like RAM) and secondary (permanent, like storage drives).
- Internal storage drives in computers need to be non-volatile to retain data even when power is off.
- Magnetic hard drives, introduced by IBM in 1956, store data on rotating disks at speeds like 5400, 7200, or 10,000 RPM.
- Solid state drives (SSDs) have no moving parts, use flash memory chips, are faster and more energy-efficient than hard drives.
- Solid state hybrid drives (SSHDs) combine magnetic disks and flash memory for speed and large capacity, automatically storing frequently accessed data on flash memory.
