INTRODUCTION

Before the 1950 s, ferromagnetic cores were the only type of random-access, nonvolatile memories available. A core memory is a regular array of tiny magnetic cores that can be magnetized in one of two opposite directions, making it possible to store binary data in the form of a magnetic field. The success of the core memory was due to a simple architecture that resulted in a relatively dense array of cells. This approach was emulated in the semiconductor memories of today (DRAM s, EEPROM s, and FRAM s). Ferromagnetic cores, ....etc

[:=Read Full Message Here=:]

ABSTRACT
Ferroelectric memory is a new type of semiconductor memory, which exhibit short programming time, low power consumption and nonvolatile memory, making highly suitable for application like contact less smart card, digital cameras which demands many memory write operations.
A ferroelectric memory technology consists of a complementary metal-oxide-semiconductor (CMOS) technology with added layers on top for ferroelectric capacitors. A ferroelectric memory cell has at least one ferroelectric capacitor ....etc

[:=Read Full Message Here=:]

dma controller direct memory access using vhdl vlsi latest

Direct memory access (DMA) is a feature of modern computers that allows certain hardware subsystems within the computer to access system memory for reading and/or writing independently of the central processing unit. Computers that have DMA channels can transfer data to and from devices with much less CPU overhead than computers without a DMA channel.

Principle of DMA

DMA is an essential feature of all modern computers, as it allows devices to transfer data without subjecting the CPU ....etc

[:=Read Full Message Here=:]

DIRECT MEMORY ACCESS



introduction

An important aspect governing the Computer System performance is the transfer of data between memory and I/O devices.

Direct memory access (DMA) is a means of having a peripheral device control a processor's memory bus directly.

computer system with dma

Consider a typical system consisting of a CPU ,memory and one or more input/output devices as shown in fig. Assume one of the I/O devices is a disk drive and that the computer ....etc

[:=Read Full Message Here=:]

Ferroelectric memory is type of semiconductor memory, which exhibit short programming time, low power consumption and nonvolatile memory, making highly suitable for application like contact less smart card, digital cameras which demands many memory write operations.
A ferroelectric memory technology consists of a complementary metal-oxide-semiconductor (CMOS) technology with added layers on top for ferroelectric capacitors. A ferroelectric memory cell has at least one ferroelectric capacitor to store the binary data, and one transistor that pr ....etc

[:=Read Full Message Here=:]

Ferroelectric Random Access Memory
Abstract
Ferroelectric Random Access Memory Before the 1950 s, ferromagnetic cores were the only type of random-access, nonvolatile memories available. A core memory is a regular array of tiny magnetic cores that can be magnetized in one of two opposite directions, making it possible to store binary data in the form of a magnetic field. The success of the core memory was due to a simple architecture that resulted in a relatively dense array of cells. This approach was emulated in the semiconductor m ....etc

[:=Read Full Message Here=:]

to get information about the topic secure atm by image processing full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-secure-atm-by-image-processing

http://seminarsprojects.net/Thread-an-application-of-morphological-image-processing-to-forensics

http://seminarsprojects.net/Thread-image-processing-projects-ideas

http://seminarsprojects.net/Thread-digital-image-processing-projects

http://seminarsprojects.net/Thread-digital-image-processing-full-report

http://seminarsprojects.net/Thread-digital-i ....etc

[:=Read Full Message Here=:]

,
Ferroelectric RAM

abstract

Ferroelectric RAM (FeRAM or FRAM) is a random access memory similar in construction to DRAM but uses a ferroelectric layer instead of a dielectric layer to achieve non-volatility. FeRAM is one of a growing number of alternative non-volatile memory technologies that offer the same functionality as Flash memory. FeRAM advantages over Flash include: lower power usage, faster write performance and a much greater maximum number (exceeding 1016 for 3.3 V devices) of write-erase cy ....etc

[:=Read Full Message Here=:]

Zero-capacitor (Z-RAM) is a novel DRAM computer memory technology .Based on the floating body effect of silicon on insulator (SOI) process technology. Z-RAM has been licensed by Advanced Micro Devices for possible use in future microprocessors. This technology offers memory access speeds similar to the standard six-transistor SRAM cell used in cache memory but uses only a single transistor, therefore affording much higher packing densities.Z-RAM relies on the floating body effect, an artifact of the SOI process technology which places transisto ....etc

[:=Read Full Message Here=:]

Thyristor RAM ('T-RAM) is a new type of DRAM computer memory invented and developed by T-RAM Semiconductor, which departs from the usual designs of memory cells, combining the strengths of the DRAM and SRAM: high speed and high volume. This technology exploits the electrical property known as negative differential resistance and is called thin capacitively-coupled thyristor used to create memory cells capable of very high packing densities. This memory is highly scalable and already has a storage density that is several times higher than found ....etc

[:=Read Full Message Here=:]