10-04-2017, 08:15 PM
SEMINAR REPORT ON OVONIC UNIFIED MEMORY
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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 .