Introduction (Chapter 1)

An ideal information storage device can be expected to possess the qualities such as low cost, fast performance, high density, low power dissipation, random accessibility, non-volatility, easy testability and reliability. Prior to the 1970s, memory storage was based on the magnetic core technology where bits of digital data were stored in magnetic wire wound coils [1]. As one might expect this technology had limitations in achievable density, cost, speed and performance.