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CISC VS RISC computers (all details)

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CISC Introduction            The term "CISC" (complex instruction set computer or computing) refers to computers designed with a full set of computer instructions that were intended to provide needed capabilities in the most efficient way. Intel's   Pentium   microprocessors are CISC microprocessors. CISC is a   processor design   where single   instructions   can execute several low-level operations (such as a load from   memory , an arithmetic   operation , and a   memory store ) or are capable of multi-step operations or   addressing modes   within single instructions. The primary goal of CISC architecture is to complete a task in as few lines of assembly as possible. This is achieved by building processor hardware that is capable of understanding & executing a series of operations, this is where our CISC architecture introduced. T...
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Google Dorks for sql injection | new 2017 |

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what are Auxiliary Storage Devices ? (squential vs Random auxiliary storage)

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              Auxiliary storage, secondary storage, or external storage are devices that store noncritical system data like documents, multimedia and programs, which are used whenever they are required. These files are invoked from the auxiliary storage when needed and then transferred to the primary storage so that the CPU can process them. The results of the process can also be sent back to the auxiliary storage for later retrieval. These storage devices hold data and programs for future use and are considered nonvolatile storage that retains information even when power is not available. The best example of auxiliary storage is hard disk drives and optical storage media like CDs, DVDs, and Blue ray. Other auxiliary storage belongs to the peripheral devices category as well, such as flash drives and any type of memory card. ž   Auxiliary storage devices can be categorized in two types based on data access.  1. Sequential Access ...
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INTRODUCTION TO BIOMETRICS

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    INTRODUCTION TO BIOMETRICS

The term “biometrics” is derived from the Greek words bio (life) and metric (to measure).Biometrics are automated methods of identifying a person or verifying the identity of a person based on a physiological or behavioral characteristic. Biometric-based authentication is the automatic identity verification, based on individual physiological or behavioral characteristics, such as fingerprints, voice, face and iris. Since biometrics is extremely difficult to forge and cannot be forgotten or stolen, Biometric authentication offers a convenient, accurate, irreplaceable and high secure alternative for an individual, which makes it has advantages over traditional cryptography-based authentication schemes. It has become a hot interdisciplinary topic involving biometric and Cryptography. Biometric data is personal privacy information, which uniquely and permanently associated with a person and cannot be replaced like passwords or keys. Once an adversary compromises the biometric data of a user, the data is lost forever, which may lead to a huge financial loss. Hence, one major concern is how a person’s biometric data, once collected, can be protected.

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