Pre-Grant Publication Number: 20110138120
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Prior Art (1)
Patent/Application # 6070226
Description
data processing system with a hierarchical memory. The memory comprises at least a single memory module. The module has a plurality of memory units. Each respective one of the memory units represents arespective level in the hierarchy. Each specific one of the memory units is physically integrated with a particular memory unit of the next higher level. Among the memory units there are an optical disk drive and at least one magnetic disk drive. The magnetic disk drive serves as a read cache for the optical disk drive. The magnetic disk drive is physically integrated with the optical disk drive.
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