Vol. 2, # 12 – Mar 25, 2010 – Issue # 28
Storage Technology: Past, Present and Future
Deb Shinder, Editor
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Most SSDs use flash memory and don’t need batteries. DRAM-based SSDs are faster, but need a battery or AC adapter and backup storage because their memory is volatile, so otherwise data will be lost if the electrical power is lost. Flash-based SSDs do use DRAM for a cache. Unlike traditional hard drives, SSDs have no moving parts. That makes them quieter and also more durable and less prone to failure. They are also less vulnerable to damage from vibration, shock or extreme temperatures, and they don’t have to be defragmented. They are fast for read operations, but SATA-based SSDs are slow on write operations. PCIe SSDs provide faster write speeds.
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The MacBookAir is quiet. But the bottom does get hot. From time to time, the box does slow down.
I’m suspecting it gets “cruddy” like windoze. Maybe it too needs a bare metal restore to get it back to its original snappy performance.
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Reinke Faces Life 