Computer Engineering Archives - Student Notes

Compiler Design: Analysis and Synthesis Phases

Posted by admin on Jan 31, 2026 in Computer Engineering | 0 comments

Compiler Phases: Analysis, Optimization, and Synthesis

A compiler translates a high-level program (like C or Java) into machine code understood by the hardware.
The compilation process is divided into multiple phases, each with a specific role. These phases work together to convert source code into an efficient executable program.

The phases are generally grouped into:

Front End – Analysis Phases
Middle End – Optimization Phase
Back End – Synthesis Phases

Below is the complete flow:

Source Program

Robotic Process Automation and Data Extraction Principles

Posted by admin on Jan 31, 2026 in Computer Engineering | 0 comments

Basic Recording vs. Desktop Recording

Feature	Basic Recording	Desktop Recording
What it captures	Audio and video of the real environment.	Activities on the computer screen.
Devices used	Microphone, camera, and mobile devices.	Computer screen, microphone, and webcam.
Complexity	Simple.	More advanced.
Files	Smaller file sizes.	Larger file sizes.
Uses	Lectures, voice notes, and simple videos.	Tutorials, demos, and presentations.

Introduction to Recording

Recording refers to the process of capturing audio, video, or on-

Essential Concepts in Computer Networking and Internet Security

Posted by admin on Jan 30, 2026 in Computer Engineering | 0 comments

1. Transmission Media Pathways

Transmission media refers to the physical or wireless pathways through which data travels from one device to another in a network. It plays a crucial role in determining the speed, quality, and reliability of communication. Transmission media is broadly classified into two types:

Guided Media: Includes physical cables like twisted pair, coaxial cable, and optical fiber, where signals travel through a fixed physical path. Optical fiber offers the highest bandwidth and

Manual DFT and IDFT Implementation in MATLAB/Octave

Posted by admin on Jan 29, 2026 in Computer Engineering | 0 comments

Implementing DFT and IDFT Manually in MATLAB/Octave

This document provides the complete MATLAB/Octave code for generating a sinusoidal signal, calculating its Discrete Fourier Transform (DFT) manually, and then reconstructing the original signal using the Inverse Discrete Fourier Transform (IDFT).

1. Signal Setup and Initialization

We begin by clearing the workspace and defining the time vector and the sinusoidal signal. The code uses 1-based indexing typical of MATLAB/Octave.

clear all;
clc;
close

Data Structures and Algorithms C Implementation

Posted by admin on Jan 29, 2026 in Computer Engineering | 0 comments

Counting Nodes in a Singly Linked List

int count(struct node *p) {
    int c = 0;
    while(p) {
        c++;
        p = p->next;
    }
    return c;
}

Postfix Expression Evaluation

Given values: A=2, B=10, C=4, D=1

i) AB–CD*

Substitute: 2 10 – 4 1 *
Step 1: 2 – 10 = –8
Step 2: 4 * 1 = 4
Final Result: –4

ii) ABC–*

Substitute: 2 10 4 – *
Step 1: 10 – 4 = 6
Step 2: 2 * 6 = 12
Final Result: 12

Graph Theory Definitions

Bridge: An edge whose removal increases the number of connected components.
Cyclic

Neural Network Architectures and Learning Concepts

Posted by admin on Jan 27, 2026 in Computer Engineering | 0 comments

Feedforward Neural Network (FNN)

A Feedforward Neural Network is the simplest type of artificial neural network in which information flows in only one direction, from the input layer to the output layer. There are no feedback connections or loops.

Basic Structure

Consists of an input layer, one or more hidden layers, & an output layer.
Data flows from input → hidden → output.

Single-layer Feedforward Network

Has an input layer & an output layer only. The output layer performs the main computation

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