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Bhanu Priya has Published 1598 Articles
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Bhanu Priya
58K+ Views
ProblemDrawing of ER model of university database application considering the constraints −A university has many departments.Each department has multiple instructors (one person is HOD). Here the HOD refers to the head of department.An instructor belongs to only one department.Each department offers multiple courses, each subject is taught by a single ... Read More
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Bhanu Priya
48K+ Views
A database administrator (DBA) is a person or group in charge of implementing DBMS in an organization. The DBA job requires a high degree of technical expertise. DBA consists of a team of people rather than just one person.The primary role of Database administrator is as follows −Database designPerformance issuesDatabase ... Read More
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Bhanu Priya
52K+ Views
BCNF (Boyce Codd Normal Form) is the advanced version of 3NF. A table is in BCNF if every functional dependency X->Y, X is the super key of the table. For BCNF, the table should be in 3NF, and for every FD. LHS is super key.ExampleConsider a relation R with attributes ... Read More
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Bhanu Priya
53K+ Views
The Turing Machine (TM) is the machine level equivalent to a digital computer.It was suggested by the mathematician Turing in the year 1930 and has become the most widely used model of computation in computability and complexity theory.The model consists of an input and output. The input is given in ... Read More
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Bhanu Priya
52K+ Views
DFA is the short form for the deterministic finite automata and NFA is for the Non-deterministic finite automata. Now, let us understand in detail about these two finite automata.DFAA Deterministic Finite automata is a five-tuple automata. Following is the definition of DFA −M=(Q, Σ, δ, q0, F)Where, Q : Finite ... Read More
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Bhanu Priya
45K+ Views
The main operation performed by operating system is to carries out is the allocation of resources and services, such as allocation of the following −MemoryDevicesProcessorsInformationThe operating system includes programs that are helpful to manage these resources, such as a traffic controller, a scheduler, memory management module, I/O programs, and a ... Read More
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Bhanu Priya
54K+ Views
Computer architecture can be defined as a set of rules and methods that describe the functionality, management and implementation of computers. To be precise, it is nothing but rules by which a system performs and operates.Sub-divisionsComputer Architecture can be divided into mainly three categories, which are as follows −Instruction set ... Read More
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Bhanu Priya
85K+ Views
The Computer memory hierarchy looks like a pyramid structure which is used to describe the differences among memory types. It separates the computer storage based on hierarchy.Level 0: CPU registersLevel 1: Cache memoryLevel 2: Main memory or primary memoryLevel 3: Magnetic disks or secondary memoryLevel 4: Optical disks or magnetic ... Read More
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Bhanu Priya
82K+ Views
Data Abstraction is a process of hiding unwanted or irrelevant details from the end user. It provides a different view and helps in achieving data independence which is used to enhance the security of data.The database systems consist of complicated data structures and relations. For users to access the data ... Read More
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Bhanu Priya
23K+ Views
Library functions are built-in functions that are grouped together and placed in a common location called library. Each function here performs a specific operation. We can use this library functions to get the pre-defined output. All C standard library functions are declared by using many header files. These library functions ... Read More