https://danielmititelu.github.io/blogs/Recent content in Blogs on HomeHugo -- gohugo.ioen-ushttps://danielmititelu.github.io/blogs/bit-manipulation/Mon, 01 Jan 0001 00:00:00 +0000https://danielmititelu.github.io/blogs/bit-manipulation/Bit manipulation is not a technique that comes often when writing code especially when dealing with higher level languages, regardless it is useful to understand how computers work behind the scene. Bit The smallest data use to represent a piece of information in computers are bits and they represent an electrical current that is stored in a memory chip. This bit can either be on or off and the notation 1 and 0 from binary system is used to denote it’s state.https://danielmititelu.github.io/blogs/graphs/Mon, 01 Jan 0001 00:00:00 +0000https://danielmititelu.github.io/blogs/graphs/A graph is a collection of vertices(V) or nodes(N) connected with edges (E) Types of graphs Trees A graph with V-1 edges is a tree Binary Trees A tree where each vertices has zero or two childrenhttps://danielmititelu.github.io/blogs/system-design/Mon, 01 Jan 0001 00:00:00 +0000https://danielmititelu.github.io/blogs/system-design/Databases Database management systems (DBMS) which are usually referred to as just databases are a piece of software that are used stores data in an organized way and offer an API to interact with it. Depending on the way data is organized and accessed there can be different databases paradigm and we will explore a few of them here. Relational databases Examples: PostgreSQL, MySql, Oracle, Microsoft SQL Server The most common way to store data is using tables with rows, columns and having relations between them.