Seminar Report On Ovonic Unified Memory

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SEMINAR REPORT ON OVONIC UNIFIED MEMORY


  OVONIC UNIFIED MEMORY.ppt (Size: 1.32 MB / Downloads: 6)

Memory-information retention

Various forms of storage are:
Primary storage
Secondary and off-line storage
Tertiary and database storage
Network storage
Characteristics of storage are:
Volatility of information
Ability to access non-contiguous information
Ability to change information
Classification of the Memory on the bases of Volatility of information is:
Volatile Memory
Non-volatile Memory

Nonvolatile Memory
Protection of data in the event of power loss
Periodic refreshing
Modern Approaches of Nonvolatile Memory
FRAM: Technique used- ferroelectricity
MRAM: Technique used-ferromagnetism
OUM: Technique used- phase changes in the thin-film
3DM: Technique used- multiple layers of active circuitry on the silicon

Ovonic Unified Memory

Definition:
Phase Change Memory
Changes the state
stores information
excellent solid-state memory properties.
Ovonyx
microelectronics memory technology
developed by Mr. Stanford Ovshinsky
Energy Conversion Devices (ECD) Inc.
Ovonic unified memory –
derived from ''Ovshinsky'' and ''electronic''.
known as phase change memory
OUM allows the rewriting of CD & DVDs .