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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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DHCP principle , DHCP server and client communication process

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1. Explain with principle: the DHCP server and client communication process DHCP stands for Dynamic Host Configuration Protocol. It handles the automatic assignment of IP addresses and other configuration settings for devices on your network. DHCP automates Network and Sharing Center in your control panel. This is especially good for people who have laptops, aren't hooked up to the Internet all the time and often move from place to place with their portable devices. They can simply get a new IP address as needed without having to do it manually. DHCP is designed to make the assignment of IP addresses and other network configuration information faster and easier. DHCP is a protocol that uses Level 4 on the OSI model. It communicates using User Datagram Protocol (UDP) datagrams through UDP Port 68. DHCP works with most current and past Windows clients, and also Linux, Macintosh, and many network-capable printers. DHCP is desi...
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Google Dorks for sql injection | new 2017 |

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HOW BIOMETRIC SYSTEMS WORKS?

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1.    HOW BIOMETRIC SYSTEMS WORKS?
Instead of using something you have (like a key) or something you know (like a password), biometrics  you are to identify you. Biometrics can use physical characteristics, like your face, fingerprints, irises or veins, or behavioral characteristics like your voice, handwriting or typing rhythm. Unlike keys and passwords, your personal traits are extremely difficult to lose or forget. They can also be very difficult to copy. For this reason, many people consider them to be safer and more secure than keys or passwords.



Biometric systems can seem complicated, but they all use the same three steps:
·         Enrollment: The first time you use a biometric system, it records basic information about you, like your name or an identification number. It then captures an image or recording of your specific trait.
·         Storage: Contrary to what you may see in movies, most systems don’t store the complete image or recording. They instead analyze your trait and translate it into a code or graph. Some systems also record this data onto a smart cardthat you carry with you.
·         Comparison: The next time you use the system, it compares the trait you present to the information on file. Then, it either accepts or rejects that you are who you claim to be.
Systems also use the same three components:
·         A sensor that detects the characteristic being used for identification.
·         A computer that reads and stores the information.

  • Software that analyzes the characteristic, translates it into a graph or code and performs the actual comparisons.

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