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The advantage of using a Database Management System
The advantage of using a Database Management System for a data store is that databases have mechanisms for describing data, managing persistent storage and for providing a backup and recovery mechanism. It also provides concurrent access to the stored data with an appropriate locking mechanism. Most of the DBMS contains information about data in the form of a data dictionary. Most commercial RDBMS come with an "Object-Relational" extension which implements an object database on top of a RDBMS.
What is reification? It is the promotion of something that is not an object into an object. Helpful method for Meta applications. It shifts the level of abstraction. Promote
mechanics of structured analysis
Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe
You have been asked to become the consulting technician for MobTex, a local auto servicing centre. The general manager (Jo) realises that the IT system has evolved over time with l
Q. Example of asymptotic notations? The function f (n) belongs to the set (g(n)) if there exists positive constants c such that for satisfactorily large values of n we have 0
There are two methods for organising the associative memory based on bit slices: Bit parallel organisation: In this organisation every bit slices which are not masked off,
Determine the approaches to organizing stored program control There are 2 approaches to organizing stored program control: 1. Centralized: In this control, all control equi
Q. Determine the odd parity bit for F. Q. Convert the following from binary to decimal, hexadecimal, BCD and octal. a) 1000000011 b) 0001010110101 c) 1 Q. Convert the f
Program 'preemption' is? Ans. Forced de allocation of the CPU from a program that is executing on the CPU is called preemption program.
What is arithmetic pipeline? Pipeline arithmetic units are usually found in very high speed computers. They are used to execute floating point operations, multiplication of fi
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