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Category Archives: Computer Subject

What is congestion? A state occurring in network layer when the message traffic is so heavy that it slows down network response time. Effects of… Read More
In this article, Let’s discuss common types of questions in relational algebra which are asked in GATE. Before reading this article, you should have an… Read More
To understand this topic, you should have a basic idea about Functional Dependency & Candidate keys and Normal forms . Steps to find the highest normal form of… Read More
For understanding the equivalence of Functional Dependencies Sets (FD sets), the basic idea about Attribute Closuresis given in this article Given a Relation with different FD… Read More
Cache Memory is a special very high-speed memory. It is used to speed up and synchronizing with high-speed CPU. Cache memory is costlier than main… Read More
This article is an extension of Commonly asked DBMS interview questions | Set 1.  Q. There is a table where only one row is fully… Read More
Digital Electronics Half Adder Half Subtractor K-Map Counters Computer Organisation and Architecture Machine Instructions What’s difference between 1’s Complement and 2’s Complement? Addressing Modes Cache… Read More
In computer networks, data is sent in small blocks known as packets. Each packet is transmitted individually and may also follow a different route to… Read More
Addressing Modes– The term addressing modes refers to the way in which the operand of an instruction is specified. The addressing mode specifies a rule… Read More
Prerequisite – Representation of Negative Binary Numbers  1’s complement of a binary number is another binary number obtained by toggling all bits in it, i.e.,… Read More
What is Functional Dependency? A functional dependency X->Y in a relation holds if two tuples having same value for X also have same value for… Read More
Both CPU Cache and TLB are hardware used in microprocessors but what’s the difference, especially when someone says that TLB is also a type of… Read More
Basics of Relational model: Relational Model  Relational Algebra is a procedural query language that takes relations as an input and returns relations as an output.… Read More
Basic idea about  relational model and basic operators in Relational Algebra: Relational Model Basic Operators in Relational Algebra Extended operators are those operators which can… Read More
Consider a situation where we have a file shared between many people.   If one of the people tries editing the file, no other person should… Read More

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