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Tuesday, January 28, 2014

One’s complement representation

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One’s complement representation In one's complement, positive numbers are represented as usual in regular binary. To negate a numb...

ASCII vs Unicode

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ASCII On both Windows/DOS and Unix systems, the 128 most commonly-used characters are each represented by a sequence of 7 bits known as ...

signed magnitude

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3. Represent the decimal number 107 in binary using 8-bit signed magnitude, one's complement and two's complement form. c) Sign...

ER diagram

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6. For the following Presidential ER diagram develop the relational schema using the pattern TableName(attribute-list). http://jcsites.ju...
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Medium access protocols

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Medium access protocols Multiple network nodes often share the same medium. For example, several computers might connect to a wireless a...

Functional Dependency

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Example Functional Dependencies Let R be NewStudent(stuId, lastName, major, credits, status, socSecNo) FDs in R include     {stuId}...

data independence in relational model

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According Codd's 12 rules, there are two kinds of data independence: Physical Data Independence requires that changes at the physica...

Binary Exponential Backoff Algorithm

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Binary Exponential Backoff Algorithm When there is a collision, the stations involved in the collision will execute the binary exponen...

securerandom vs random

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Instances of java.util.Random are not cryptographically secure. Consider instead using SecureRandom to get a cryptographically secure pseudo...
Monday, January 27, 2014

ArtifactTransferException: Failure to transfer ...

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If you get this error message starting with this you can trace the failing jar or dependency file on local folder below.This path is a gener...

Sign-Magnitude

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Sign-Magnitude Representation There are many schemes for representing negative integers with patterns of bits One scheme is sign-magnitude...

BigInteger

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BigInteger, What Are They? (From sun.com) "Immutable arbitrary-precision integers." should be used whenever you need to handle ver...

Multitenancy

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Multitenancy Multitenancy refers to a principle in software architecture where a single instance of the software runs on a server, ser...
Friday, January 24, 2014

SecureRandom

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// Get the instance of SecureRandom class with specified PRNG algorithm     SecureRandom secureRandom = new SecureRandom(); // You ca...
Friday, January 10, 2014

Oracle Exadata Database Machine

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The Oracle Exadata Database Machine is engineered to be the highest performing and most available platform for running the Oracle Database. ...
Wednesday, January 8, 2014

Go (programming language)

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 Go, also called golang, is a programming language initially developed at Google in 2007 by Robert Griesemer, Rob Pike, and Ken Thompson.  ...
Tuesday, December 10, 2013

Jenkins Doxygen Plugin

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we can use Jenkins for building a project's documentation using Doxygen. how to configure a Jenkins job for generating a project's ...

how to count rows in eclipse

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how to count rows in  eclipse \n[\s]* counting empty lines \n

data storage, data transmission byte/bit conversions

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data storage bits/bytes are calculated as follows: 1 byte = 8 bits 1 kilobyte (K / Kb) = 2^10 bytes = 1,024 bytes 1 megabyte (M / MB) = 2^20...

Virtualization

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Desktop Virtualization, VDI VDI or Virtual Desktop Infrastructure refers to the process of  running a user desktop inside a virtual mac...
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