One of the first steps while working on any project that handles large amount of data, is to decide the structure and flow of data stored. A good data model is a means to a good foundation of any project, where as a badly structured data model can lead to…

Quick notes: History and Use of DBMS A Brief History of Database Technology Early database applications 1960s — Hierarchical and network models were introduced. A bulk of world wide database still occurs using these models. Relational Model Based Systems introduced in 1970 Heavily researched and experimented within IBM research and several university. Relational database management system…

The beginning and the growth of DevOps — To master DevOps, it is important that we understand how it immerged in the first place. So let’s begin at the beginning and start with understanding the history, need and birth of DevOps. The Pre-DevOps Era 20007 Before DevOps came into picture, releases and deployment were a chaotic event. Last minute issues and rollbacks…

This is part 3 /3 Read part 1 here and part 2/3 here. Memory Management In multi programming systems, what was considered large memory size 5 years ago, is obsolete today, what is considered large memory size today, is going to be obsolete in 5 years. So there is never going to…

This is part 2/3 Read part 1 here and part 3 here. Context Switching When does Process Switch occurs? Interrupts — When hardware servicing is needed Trap — When OS support is required Blocking System Calls — When requests from the process is made for OS support When a context switch /…

This is part 1/3 Read part 2 here and part 3 here. Understanding Computers A computer is any electro-mechanical device which takes input, does some processing on that input and gives an output. …

Flash warning: the article talks about sensitive mental health issues from a person who is still learning what it is and apologies for any factual errors or (unintended) offense or triggers. If you find something that requires change please @ me. Criticism is appreciated. With the second wave of COVID…

— The following article reviews Markowitz’s portfolio selection model, focusing on Modern Portfolio Theory to enhance methods of portfolio selection. …

A Compiler is a translator from one language, the input or source language, to another language, the output or target language. A compiler program written in a high-level language is called source language. A loader is a program that places programs into memory and prepares them for execution. Preprocessors are…