Category: Computer Science

SQL – Data Definition Language

SQL Overview SQL (Structured Query Language) is the standard query language for relational databases, which was initially established by the

Union Union is a binary operation that takes two relations, R and S, as input and produces an output relation

ANSI/SPARC Architecture Data abstraction is one of the primary benefits of database systems. Data abstraction is accomplished by defining various

Database Systems can be easily described as a structured set of data stored in a computer that may be accessed

What is a computer program? A computer program is referred to as a set of instructions (known as code) to

In this technologically advanced era, our private data is always under security threat. Cybersecurity threats are increasing day by day

The computer has one basic purpose of processing data and create information from it. This process has to be protected

What is a Computer Network? It is basically a set of technologies, that can be either hardware, software or media,

What is the operating system? It is an interface between a user and computer hardware that performs all basic tasks

This article encounters the problems that the computer hardware is facing along with the solution of some of them. Hardware