Computer Organization
Minimization of Logic Gates
Introduction When designing digital systems, especially for the first time, such as calculators, computers, and communication devices, we often start with complex Boolean expressions that involve several variables and gates. These expressions can be simplified using specific techniques later, allowing the same logical function to be performed using fewer gates Read more…
Computer Organization
Flip-Flop
History The concept of flip-flops dates back to the early days of electronics. The idea behind bistable circuits (flip-flop) dates back to early 20th-century electronics. The first practical bistable multivibrator flip-flop circuit was invented by William Eccles and F. W. Jordan in 1918, and it was called the Eccles–Jordan trigger Read more…
Python Theory
GUI in Python
Python offers several ways to create GUI (Graphical User Interface) user-friendly applications. Some of the most popular Python libraries are used for building GUI applications:- Tkinter (Built-in GUI Library) This library is already included with/pre-installed with Python/built into Python (no extra installation is needed). This is simple, easy, and lightweight. Read more…
AJS
Expression Examples in AJS
Example : A basic Expression program in AJS to evaluate operation. Example : An AJS program to handle Object Expression.
Python Theory
File Handling in Python
Introduction File handling in Python allows us to read, write, and manipulate files (text or binary) stored on our system. Python provides several built-in functions to work with files such as open(), remove(), write(), etc. Definition A file in Python is a storage unit on a computer where data can be Read more…
Data Visualisation
Filters in Tableau
Definition Filters in Tableau allow users to control and refine the data displayed in visualizations. Characteristics Basic Filters help limit the data based on user-defined conditions. Types of Filters There are three main types of basic filters used in Tableau :- Dimension Filters Measure Filters Date Filters Dimension Filters This Read more…
Data Visualisation
User Interface in Tableau
Tableau provides a user-friendly drag-and-drop interface designed for data visualization and analysis. Below is a breakdown of its key components. Tableau’s intuitive UI makes it easy to analyze data using Sheets, Dashboards, and Stories. The Menu, Toolbar, and Data Window help manage data and create impactful visualizations. Understanding data types Read more…
Data Visualisation
Operators in Tableau
Operators in Tableau are used to perform calculations, comparisons, and logical operations within calculated fields and formulas. These operators help in data transformation, filtering, and decision-making. Types of Operators in Tableau Tableau provides General, Arithmetic, Relational, and Logical operators to create powerful calculations and filters in dashboards. They are categorized Read more…
Data Visualisation
Built-In Functions in Tableau
Types of Built-In Functions Tableau provides several types of built-in functions that are used to manipulate and analyze data in calculated fields. Tableau functions help in data transformation, calculation, and analysis. These functions are categorized into:- Number Functions (Math operations) String Functions (Text manipulation) Date Functions (Date calculations) Logical Functions Read more…