Part 10: Computer Fundamentals Virus

Part 10: Computer Fundamentals Virus

Computer Virus Computer viruses are unwanted software programs or pieces of code that interfere with the functioning of the computer. They spread through contaminated files, data, and insecure networks. Once it enters your system, it can replicate to produce copies of...

Part 8: Computer Fundamentals Number System

Part 8: Computer Fundamentals Number System

Number System When we type some letters or words, the computer translates them in numbers as computers can understand only numbers. A computer can understand the positional number system where there are only a few symbols called digits and these symbols represent...

Part 6: Computer Fundamentals Memory

Part 6: Computer Fundamentals Memory

Computer Fundamentals Memory A memory is just like a human brain. It is used to store data and instructions. Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored. The memory is divided...

Part 4: Computer Fundamentals Output Components

Part 4: Computer Fundamentals Output Components

Output Devices The output device displays the result of the processing of raw data that is entered in the computer through an input device. There are a number of output devices that display output in different ways such as text, images, hard copies, and audio or...

Part 2: Computer Fundamentals Applications

Part 2: Computer Fundamentals Applications

Business A computer has high speed of calculation, diligence, accuracy, reliability, or versatility which has made it an integrated part in all business organizations. Computer is used in business organizations for − Payroll calculations Budgeting Sales analysis...

Part 9: Data and Information OS and Network

Part 9: Data and Information OS and Network

Data can be defined as a representation of facts, concepts, or instructions in a formalized manner, which should be suitable for communication, interpretation, or processing by human or electronic machine. Data is represented with the help of characters such as...

Part 7: Computer Fundamentals Software

Part 7: Computer Fundamentals Software

Software Software, which is abbreviated as SW or S/W, is a set of programs that enables the hardware to perform a specific task. All the programs that run the computer are software. The software can be of three types: system software, application software, and...

Part 3: Computer Fundamentals Input Components

Components All types of computers follow the same basic logical structure and perform the following five basic operations for converting raw input data into information useful to their users. S.No. Operation Description 1 Take Input The process of entering data and...

Part 1:  Computer Fundamentals Basics

Part 1: Computer Fundamentals Basics

Computer Fundamentals Computer is an advanced electronic device that takes raw data as an input from the user and processes it under the control of a set of instructions (called program), produces a result (output), and saves it for future use. This tutorial explains...

Chapter 4 Relational Algebra

Chapter 4 Relational Algebra

Relational Algebra The part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formula and equations. Ex: (x + y) · z = (x · z) + (y · z). The main application of relational algebra is providing a theoretical...

Chapter 3 Components of the Database System Environment

Chapter 3 Components of the Database System Environment

Components of the Database System Environment There are five major components in the database system environment and their interrelationships are. Hardware Software Data Users Procedures Hardware:  The hardware is the actual computer system used for keeping and...

Database basic overview

Database basic overview

What is DBMS? A Database Management System (DBMS) is a collection of interrelated data and a set of programs to access those data. Database management systems (DBMS) are computer software applications that interact with the user, other applications, and the database...

Laravel – Scopes (3 Easy Steps)

Laravel – Scopes (3 Easy Steps)

Scoping is one of the superpowers that eloquent grants to developers when querying a model. Scopes allow developers to add constraints to queries for a given model. In simple terms laravel scope is just a query, a query to make the code shorter and faster. We can...