Things you should know before studying calculus — These are just a few videos I have put together sometime back and thought to include in a blog, so I have everything in one place. I have originally published them here. These few videos will introduce you to functions, linear functions, circles, parabolas and briefly talks about trigonometry. Functions Linear Functions Circles and Parabolas Trigonometry

Who would have thought history could be this interesting… — Yuval Noah Harari’s Sapiens A Brief History of Humankind is the most thought-provoking book I’ve ever read in my life. Seriously, it is that good. It brings out a whole new different perspective on the facts that we already know. …

In this post we are going to talk about how multiplexing and demultiplexing happens at the transport layer. Before we jump into the subject, let’s first jog our memory about what we already know about TCP/IP (Transmission Control Protocol/Internet Protocol), so that we are all in the same page. Let’s…

Under the hood of your program — We write programs all the time using high level programming languages like Java, C etc... With these programs we can instruct the computer to do something useful. But have you ever wondered how exactly the computer is able to execute these instructions? …

Numbers with fractions that can be put in the form,

Have you ever encountered a situation where adding two positive numbers resulted in a negative number or vice versa? You see such ridiculous results when an overflow occurs with arithmetic operations. …

In this brief post, we are going to talk about byte order. A byte usually consists of 8 bits and and a collection of bytes form a word. Therefore, the bytes in a word can be numbered either from left to right or right to left. …

Hexadecimal uses digits 0–9 and characters staring from ‘A’ to ‘F’ which altogether contains 16 different values. A single hexadecimal digit can be represented by 4 binary digits (Refer Table 1). Java and C uses 0x or 0X to represent hexadecimal numbers. Characters (‘A’ to ‘F’) in a hexadecimal number can be written either in upper case or lower case. For example, 0xa8b3d is same as 0xA8B3D. Converting hexadecimal number to binary

How computers represent numbers — Computers use binary digits ( or in other words bits) to store and process information. A binary digit can be of one of the two values, 0 or 1. For example, take the decimal number 59. Binary form of that decimal number 59 is 111011.