“Look at the opportunity of design to empower everyone” — Dan Formosa — Each and every person in the world is different to each other. They have different capabilities, weaknesses, backgrounds, cultures, interests, viewpoints and experiences. So, the way they interact with an interactive system is different. Because of that, it is not fair to come up with a generalized system that can…

Techniques to evaluate how far your interactive system supports usability as well as the functionality…….. — If good design techniques are used is it necessary to do an evaluation? The answer is yes, it is necessary because evaluations are the key components of a good human computer interaction. Several best designing techniques can be used in the designing process of an interactive system. These can be…

User Mode — If you can remember we start walking in the road to user mode from the #7 article onwards. Their we advanced our OS so that it can execute a program at the same privilege level as the kernel. Now, we are near the destination of our road, User mode. If…

Page Frame Allocation In the previous article we discussed about the virtual memory and paging in details. Through this article let’s get an idea about page frame allocation, the technique of informing the operating system, the parts of memory that are free to use when dealing with virtual memory. If…

“Leadership is an action, not a position.” - Donald McGannon — People have been accustomed in working as a team under a leader ever since the life began. Hence, the word “leadership” has been shaped with different definitions for a long time. …

Introduction to Virtual Memory and Paging — Previous article onwards we are walking in the path to execute a program in user mode. If you haven’t gone through the previous article on road to user mode, please read it from here to understand the process going on, in this article. Through this article let’s have a quick…

The Road to User Mode — Now that the kernel in our developed operating system boots, prints to screen and reads from keyboard. …

“It’s not what work you will do, it’s what you like to do” “What you want to be when you grow up?” It was the most heard question in my childhood. I heard many answers around me. Many seems similar a very few different. …

Interrupt handling and reading inputs from keyboard. — Your operating system is currently capable of many functions. As your OS has been developed to produce an output on the console, with this article let’s see how we can advance our OS to obtain inputs from the keyboard. The operating system must be able to handle interrupts in order…