Computers Archives - Student Notes

Parallel Programming Examples: OpenMP and MPI Code Snippets

Posted by admin on Mar 13, 2026 in Computers | 0 comments

1. OpenMP Parallel Loop Scheduling

#include <stdio.h>
#include <omp.h>

int main() {
    int n = 16, thread;
    printf("\nEnter the number of tasks: ");
    scanf("%d", &n);
    printf("\nEnter the number of threads: ");
    scanf("%d", &thread);
    omp_set_num_threads(thread);
    printf("\n--------------------------------------\n");
    #pragma omp parallel for schedule(static, 2)
    for (int i = 0; i < n; i++) {
        printf("Thread %d executes iteration %d\n", omp_

Essential Database Management Systems Concepts

Posted by admin on Mar 13, 2026 in Computers | 0 comments

1. Data, Databases, and DBMS

Data refers to raw facts and figures which by themselves have no meaning (e.g., numbers, names, marks, dates). When processed and organized, it becomes meaningful information.

A database is an organized collection of related data stored in a structured manner for easy access, management, and updates (e.g., a student database).

A Database Management System (DBMS) is software that allows users to create, store, retrieve, update, and manage databases efficiently (e.g., MySQL,

Flutter Implementation: Cart and Room Management

Posted by admin on Mar 12, 2026 in Computers | 0 comments

Flutter Shopping Cart Implementation

This example demonstrates how to create a simple Shopping Cart interface in Flutter using TextEditingController and StatefulWidget to manage item inputs and calculate totals.

import 'package:flutter/material.dart';

void main() { runApp(MyApp()); }

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(home: CartScreen());
  }
}

class Item {
  String name;
  int qty;
  double price;
  Item(this.name, this.

Mastering SQL Server Fundamentals and Azure Database Services

Posted by admin on Mar 11, 2026 in Computers | 0 comments

SQL Fundamentals & Azure IaaS

1. Database Fundamentals

RDBMS vs. NoSQL:

RDBMS: Organized store of data, minimizes redundancy, reduces inconsistency. Stores data in tables (rows/columns).
DBMS Types:
- Open Source: MySQL, MariaDB, PostgreSQL.
- Proprietary: Oracle, Microsoft SQL Server, IBM DB2.

SQL Server Editions:

Express: Free, limited size/performance.
Developer: Free/low-price, full features, dev use only.
Standard/Enterprise: Production use, terabytes of data.

Data Types:

Numeric: int, bigint, decimal,

Essential Python Programming Exercises and Solutions

Posted by admin on Mar 11, 2026 in Computers | 0 comments

Program 7: Prime Number Checker

n = int(input("Enter number: "))
if n <= 1:
    print("Neither prime nor composite")
else:
    for i in range(2, n):
        if n % i == 0:
            print("Not prime, it is a composite number")
            break
    else:
        print("Is a prime number and not a composite")

Program 8: Geometry Area Calculator

def rect(l, b):
    print("Area of rectangle:", l * b)

def square(s):
    print("Area of square:", s * s)

def triangle(b, h):
    print("Area of triangle:

Database Management Systems: Core Concepts and Principles

Posted by admin on Mar 10, 2026 in Computers | 0 comments

Database Management System (DBMS)

A software package or system designed to facilitate the creation and maintenance of a computerized database.

Data Storage in Databases

Data is stored in tables consisting of rows and columns.

Table Relationships and Keys

Tables relate to one another using keys:

Primary Key (PK): Uniquely identifies a row in a table.
Foreign Key (FK): Links one table to another.

Records and Constraints

A record (or row) is a single entry containing data for each column in the table. A constraint

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