Acoustic Cryptanalysis Attempts on CPU and Keyboard

ABSTRACT
Acoustic sound is a natural phenomenon which can be emitted from interactions among physical objects or materials with its specific acoustic signature in frequency, amplitude and signal pattern or spectra. The emission occurs when a small surface displacement of a material is produced due to a rapid release of energy in a material, or on its surface. Acoustic sound which has specific spectra signature could be a powerful tool to reveal important information from the object bein ....etc

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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

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Presented By:-
Rajkiran swain


CPU SCHEDULING
Introduction
 Multiprogramming A number of programs can be in memory at the same time. Allows overlap of CPU and I/O.
 Jobs (batch) are programs that run without user interaction.
 User (time shared) are programs that may have user interaction.
 Process is the common name for both.
 CPU - I/O burst cycle Characterizes process execution, which alternates, between CPU and I/O activity. CPU times are generally much shorter than I/O time ....etc

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Types Of Memory:-
Basic Types Of Memory :1]RAM (Random Access Memory)
2) ROM (Read Only Memory)
RAM (RANDOM ACCESS MEMORY):RAM or Random Access Memory is a read/write type of memory which is used by the processor to keep program. It is volatile type of memory or temporary memory which lose its contents when the power supply to it is switched off.
HISTORY OF RAM:Static RAM was first developed by Intel in 1969 to replace the traditional computer core memory systems that were available. The compa ....etc

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CPU Scheduler A Simulation ....etc

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dvd combo rom disk technology seminar ppt ....etc

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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

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CPU & MEMORY
CPU(Main Processor)
 The main component of any motherboard is the main processor chip
 It controls all the inner functions of the system.
 The Central Processing Unit(CPU)functions as the brain of every PC.
 CPU is responsible for the overall working of all components of the computer. It consists of two parts ALU & CU.
 The Arithmetic Logic Unit performs arithmatic operations and conducts the comparison of information for logical decisions.
 The Control Unit is responsible for ....etc

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INTRODUCTION
Traditionally, the protection of power transformers has been relegated to the application of transformer differential and backup overcurrent relays to provide shortcircuit protection. With the advent of modern multifunction transformer packages, differential and overcurrent protection are only two of many protective and logic functions that can be incorporated into the transformer protection package to enhance value to the user. Other protective functions include overexcitation protection (24), neutral overvoltage (59G), ground ....etc

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Hello there i really need to know all the thing about clockless chips. It doesnt use clock right? So what does it use insted of clock? Give me all details ane links realted to it. I hope i will get help from u. Thank you ....etc

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