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| With the older, spinning platter hard drives, mechanical arms with itsy-bitsy read/write heads on the very end would have to get positioned here and there and everywhere on the stacks of hard drive platters to find files. This movement slowed down access to the data.
Think of your kitchen cupboards. After a while of usage, your hard-drive's data organization would be equivalent to having a few dinner plates in this cupboard, one in the cupboard above the sink, two or three in the skinny cabinet next to the stove, and finally five plates under the sink. Setting the dinner table for two or three (running a small program) is not a biggie... but setting the table for Thanksgiving dinner, (think an intense program or data file) takes a lot of running around the kitchen, searching cupboards for the plates you need.
Optimizing older drives would involve gathering all the plates and stacking them as much as possible in nice long strings around the hard drive platters, minimizing that mechanical arm movement.
SSD drives use electronic memory which does not require a physical movement to read the data. The 1's and 0's are put all over the memory chips, but still quickly accessed. | |
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SSD optimization: a thing of the past
