Samsung may be onto something. They've got a prototype notebook hard drive with a 1 GB buffer. And I thought my Western Digital with 8 MB of cache was great. The drive only has to spin a portion of time saving power. Probable application will be in notebooks, but it would also extend battery life in an MP3 player.
"The traditional hard drive takes up about 10 to 15 percent of the battery power of your notebook," Greenberg said. Thus, in a notebook with a four hour battery, the hybrid drive could extend battery life by about 36 minutes.
The companies also said the drive could help accelerate boot-up time.
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