Linux vs Windows and macOS: Key Differences

Posted by on Feb 18, 2026 in Computers | 0 comments

⚖️ Comparison of Linux with Other Operating Systems

Linux, along with Microsoft Windows and Apple macOS, forms the triad of major operating systems. For exam purposes, the comparison focuses on their fundamental differences in cost, source model, security, and primary use case.

Fundamental Distinctions (Source Model & Cost)

FeatureLinux (e.g., Ubuntu, Fedora)Microsoft Windows (Proprietary)Apple macOS (Proprietary)
Source ModelOpen source (source code is freely available, modifiable, and distributable)
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C Programming Examples: Logic and Data Structures

Posted by on Feb 17, 2026 in Computers | 0 comments

C Programming Examples: Logic and Data Structures

<h3>1. Comparing Student Marks</h3>
<p>This program compares the marks of two students.</p>
<pre><code>#include &lt;stdio.h&gt;

int main() { int studentA, studentB; printf(“Enter marks of Student A: “); scanf(“%d”, &studentA); printf(“Enter marks of Student B: “); scanf(“%d”, &studentB); if (studentA > studentB) { printf(“Student A scored higher with %d marks.\n”, studentA); } else if (studentB

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Data Engineering Essentials: Pipelines, Transformation, BI & Quality

Posted by on Feb 16, 2026 in Computers | 0 comments

Role of Data Engineering in Managing Data Resources

Data engineering plays a critical role in managing and organizing data resources in modern organizations. With the growth of digital platforms, organizations generate massive volumes of data from various sources such as transactional systems, mobile applications, websites, sensors, and social media platforms. Data engineering focuses on designing, building, and maintaining data pipelines that efficiently collect this data from multiple sources.

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Linux Process Management and File System Architecture

Posted by on Feb 14, 2026 in Computers | 0 comments

Starting Processes in Linux

Processes can be started in two ways:

Foreground Processes

A foreground process runs normally on the terminal and occupies the shell until it finishes. The user cannot run another command until this process completes.

Example: $ ls or $ firefox

To start a process in the foreground, simply use the command_name.

Background Processes

A background process runs behind the terminal, allowing the user to continue working. A background process command ends with &.

Example: $ firefox

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Computer Systems: Hardware, Networks & Software

Posted by on Feb 13, 2026 in Computers | 0 comments

1. Hardware — The Physical Foundation

  • Motherboard: The main printed circuit board that connects all the components of a computer. It provides the physical foundation and facilitates communication between all components.

    Relation: ‘It allows the phone’s hardware parts to talk to each other to process the action.’

  • Processor (CPU): Known as the “brain” of the computer. It is responsible for making calculations, executing instructions, and controlling the overall operation of the system.

    Relation: ‘The

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vi Editor, Shell Variables and Shell Scripting I/O for Linux

Posted by on Feb 13, 2026 in Computers | 0 comments

vi Editor: Modes and Commands

The vi editor is a powerful and commonly used text editor in Linux and Unix systems. It is mainly used to create, edit, and manage text files such as configuration files, shell scripts, and program source code. vi works in different modes, which makes it efficient but slightly difficult for beginners.

Modes of the vi Editor

vi editor works in three main modes:

Command Mode

  • Default mode when vi starts.
  • Used for navigation, deleting text, copying, and saving files.
  • Example commands:
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