Buttons are one of the primary ways of interaction on the web. We submit forms with buttons and perform common actions on the web. In this post we w...

This is the third post on creating a Design System of your own and until now we have learned about the colors and typography parts of the system. No...

This is the second post about creating a Design System for my project. Last time I selected colors for my project and made 8 variants of those color...

What is a Design System? This is the question to which I will answer by learning and creating a Design System of my own for a project. But first of ...

Building forms with React can be painful when you have to do all the things yourself like validation and handeling form submission etc But there is ...

Last three post we learned about Styled-Components which is used to style application by writing CSS directly in JS and React. I liked it a lot and ...

Now that we know about the basics and about the advance features of the styled-components we will be building a simple application with dark and lig...

In the last post we learned about the Basics of Styled Components and now we are gonna look at the Advance features of Styled Components mainly abou...

Ever since I started using React I have been using SASS (SCSS) for styling my applications. The reason why I started using SASS in the first place i...

We now know some of the basics of Redux and know how to use Redux in our application and now its time to look at the Redux Data Flow and how Redux h...

In the last post we started building a todo application with react and redux. We first created a simple todo app with CRA, styled it and added a bio...

We now know what Redux is, we looked at the core concepts of Redux and so it is time to know about Redux App Structure to know how all these pieces ...

This is the second post in Redux Series and this will be all about the core concepts of Redux. As mentioned in the last post that Redux is not just ...

Back to business and the first thing we will be learning about is called Redux. Anyone who build UIs with JavaScript will come across problems with ...

This is the third day of Eid and holidays will be over today and I was thinking of learning some new tech starting from tomorrow. I wanted to learn ...

It is the second day of Eid ul Fitr and during these holidays I am trying to do little work and trying to watch as many movies as I can. So another ...

It's the first day of Eid ul Fitr 1442/2021 and this page will be a special one that I will be designing with HTML and CSS only and also will not be...

This post will be kind of a roadmap for this blog of mine and what I think I will make big improvements in the Blogs design and in functionality.Tod...

This is the Fourth post about me migrating this blog from GatsbyJS to NextJS and it will be the last one in this and only thing that remains is that...

Third day of trying to migrate this blog from GatsbyJS to NextJS and most of the work is done all that is remaining is just styling it all from top ...

Last time I did some makeover of all the files and folders of the GatsbyJS blog in accordance for it to work with the NextJS and changed code and so...

I started this blog at the start of this year and when i started this I thought of building this blog with a JS framework and for that i deceided re...

I have been learning Rust Programming Language since last week or so and I think I have learned most of the things that I should be knowing for know...

Last time we learned about HashMaps and how we create and insert values into a HashMap etc and now we will be looking at Generics. So What are Gener...

Last time we looked at Vectors which are like fixed size arrays as in C but with much more functionality and today we will look at another data stru...

Next in Rust Programming Language we will be taking a look at Vectors which is a data structure in Rust. Vectors are like Lists in Python and arrays...

Nothing is Perfect and that includes the code that we programmers write everyday, seven days of the week and most of the year. This code we write wi...

A struct or structure is a custom Data Type that is a collection of related values that are put together to form a meaningful group. They are simill...

Now we know all the basics of Rust Programming Language like Control Flow Statements, Variables, Comments and Functions etc. Now we will be taking a...

Now that we know some basics of Rust and how to import and use packages called crates and now we will be taking a look at Rust Control Flow. Things ...

Before we learn any more about the Rust Syntax there is one more thing that we should learn about and that is the Cargo Compiler that also comes wit...

We now know how to assign variables, how to write comments and work with functions in Rust and now comes a concept that is unique to Rust Programmin...

Last time we looked at Variables, Comments and some of the Types in Rust and now its time for funtions in Rust. A function is a piece of code that p...

In the last post we installed `rustc` or Rust compiler and wrote a little hello world program, compiled it and executed it and now we will be learni...

Taking another break from OS study and will be learning another programming language and that will be Rust which is a "blazingly fast and memory-eff...

This will be the last post about Virtual Memory and it will be about thrashing which is condition where most of the CPU time is spent in swapping pa...

Page replacement is a way to swap a page that is not being used out of the memory and swap in the page that is requested by the program in the memor...

So far in Virtual Memory we have learned what virtual memory is and one of the techniques that are used to implement VM. Now we will be looking at P...

We are learning about what VM or virtual memory is and how it is used and operated in the operating system and now we will be looking at a technique...

Hello There! we are back to learning about Operating Systems. For the last three days I took a break from learning about OS and in the meanwhile was...

Last day we built a TodoList with SvelteJS. We can add an item and cross from the list but in its current situation we cannot delete and item from t...

Yesterday we saw what SvelteJS is and why it is different from other JS frameworks like React and Vue etc. We also build a little counter with it an...

Svelte is a JavaScript FrontEnd Framework just like React, Vue and Angular which is used to build frontend user interfaces. Its a "tool for building...

In the last few days we have learned about memroy management and how techniques like paging and segmentaiton aer used to manage memroy in the operat...

In the last post we learned that Paging is a part of the virtual memory that allows the OS to execede the limit of the physical memory by letting it...

As we discussed before that the main memroy or the physical memory in a system is limited and is divided into small fixed-size blocks called frames....

We know that in order for a process to execute it has to be in memory and in memory it is assigned to a physical address space from which a CPU can ...

The program code has to be transferred from secondary storage like HDD or SDD to the main memory to be executed. This task is called **process loadi...

We know Main memory of a system is limited and often not enough for all the programs to exist at the same time. So in order to deal with this we swa...

Now we know how a program is translated and binded from logical address to physical addresses in the main memroy. Today's topic is going to be how a...

In last post we learned that the memory management in the operating systems in necessary in order for the relocation, protection and sharing of data...

Memory management is a part of the operating systems that is responsible for efficiently sharing the main memory between all the process to help the...

Memory is one of the main parts of a computer. Without memory we cannot store programs and execute instructions. Memory consists of a large array of...

FizzBuzz is a group word game for children to teach them about division. What happens is that players take turns to count numbers incrementally with...

This is the last post about deadlocks and in this we will be learning about how to recover from deadlocks. When a deadlock detection algorithm detec...

The banker's algorithm is used to avoid deadlocks in a system and calculate resource allocation. As the name implies, the algorithm makes sure to no...

Deadlocks in a system causes it to stop working because all the process depend on each other to take the first step which causes the processes to st...

We yesterday learned about some techniques to prevent deadlocks from occuring and there are ways to avoid deadlocks too but we will discuss about th...

I tried to do some open-source coding which I have never done before and was looking for a project to contribute to can came upon one which wanted n...

As we learned in the last post that in order for deadlocks to appear all of the necessary conditions must hold true at the same time and for prevent...

In multiprogramming systems, more than one process is being executed at the same time. All of these processes compete for finite number of resources...

Today it will be going to be another synchronization problem called Readers-Writers Problem. It is not a single problem but more than one problems t...

Today is not will be about Operating Systems but rather about something new I learend recently which is not about OS but about programming. The reas...

So far we have learned about Race Conditions, Critical Section Problem and its solutions in process synchronization bu now we will be learning about...

Until now we have seen two ways of solving the Critical Section Problem, By hardware and by software. Both of them have their own advantages and dis...

Last time we looked at the hardware-based solutions to the Critical Section Problem and now we will be learning about one of the most popular softwa...

Last time we learned about the Critical Section problem and how we can hanlde it in operating systems. Today we will be learning about how we can so...

Last time we learned about the Process Synchronization and Race Condition where in race condition a two processes running at the same time and acces...

This post was intended to be about how CPU scheduling works in Windows Operating System but that is for another day maybe but for today it will be a...

So far we have learned about the CPU scheduling, Objectives and Working of a Scheduler and Multi-Processor Scheduling and there are many things we h...

As we learned before that there on a single-core processor only one process can be executed at a time and in multi-core processors multiple threads ...

Scheduling in operating systems is of the main priority in order to maximize the productivity of the computer and efficiently utilize the resources ...

CPU scheduling is the basis of multiprogramming operating systems. By switching the CPU between multiple processes the operating system can make the...

A Threading Library is a piece of code that provides the programmers with APIs to create and manage threads in an Operating Systems. There are two w...

As mentioned in the last post about threads, Multithreading is the ability of the CPU to run multiple threads of execution at the same time while sh...

A thread is a basic unit of CPU utilization. It is also called a **lightweight process**. It behaves like a process in a process and does not have i...

Inter-Process Communication allows one process to communicate with another process. In a multiprogramming systems there are hundreds of processes ru...

In modern Operatnig Systems a lot of processes are being executed at the same time and all of them need resources for completing the execution. But ...

Last time I wrote about the Process and it memory layout and now I will be writing about how a process is represented in operating systems and what ...

This is the start of another mini series on Process Management in Operating Systems. Process Managemenet is a wide topic that cannot be covered I th...

So far I have wrote about what Operating Systems are but now I will start writing about how it works and what makes it work but before going into de...

If you have used more than one operating system you know that all of the have different file types for the executables like if you want to install a...

Last day I wrote about Operating System Services and for today I will be focusing on learning about Operating System Structures. A modern OS is a ve...

An operating system is software that sits directly on top of hardware on which it runs programs that we use to solve our daily problems like managin...

Two weeks ago I decided to learn some Algorithms for the next three weeks and it has been two weeks since and one more week to go but I am deciding ...

This is the second post about Scheduling Algorithms and in the last post I wrote about two of them which were First-Come First-Serve and Shortest Jo...

Last day I learned about some simple algorihtms that are used in the OS design and today I will be learning about more algorithms that are also used...

Last day I learned Dijkstra's Algorithm and today I learned two algorithms in the college which are not the kind of algorthms that I have learned so...

Today's algorithm that I will be learning is Dijkstra's Algorithm. Before deciding to learn this algorithm I was thinking of learning some other alg...

This is the 10th day in the Data-Structures and Algorithms Searies and up to now I have learned about 5 algorithms. Three of them were sorting algor...

Last day's algorithm which was a searching algorithm was much simpler to understand than the sorting algorithms I learned some days before and today...

Today was a bit busy day but I did learn an algorithm. This algorithm is called Binary Search which is a searching algorithm that recursively search...

I recently watched many videos and read one or two articles to understand how to calculate the time complexity of an algorithm but I don't know why ...

This is the sixth post in the Algorithms and Data Structures Series and before a week I totally jumped to learning Data Structure and Algorithms wit...

This is the fifth post in the Data Structures and Algortihms today I will be learning about another sorting algorithm called Quick Sort. Quick Sort ...

This is the fourth post in the Data Structures and Algorithms Series and this day I will be learning about Merge Sort. Merge Sort is one of the effi...

Insertion Sort is a simple sorting algorithm that sorts a list of elements one element at a time. In simple words, Insertion sort takes a list as an...

Algorithms are steps to solve a problem and there are many algorithms to solve just one problem but all of them follow different steps. All these al...

I started learning programming in the late 2019 when I enrolled in the Computer Science Class at College and now I am pretty comfortable with Python...

This is the last post in the Linux Series that I started on Februrary 01, 2021 to learn most of the basics of the Linux OS. This will be a small pos...

Nowadays everything we do on the internet is being tracked by big companies like Google, Facebook etc and Government Agencies like NSA etc. This inf...

A Shell is a command interpreter or an interface between a computer's OS and the user that enables the user to manipulate files and run commands, pr...

This post is all about Environemt Varibles in Linux as they are really important to learn and understand for a Linux User. ## Environment Variabl...

This is the 15th post in the Linux Series and this will about Scheduling Processes in a Linux System. Anyone learning Linux must know how to schedul...

This is the fourtheenth post in the Linux Series and in this I will try to explain how to install and remove softwares and some common functions rel...

In the last post about the Regular Expression I tried to explain what are regex with examples but doing that would make these post unnecssary large ...

There is this command called `grep` that I wrote about in [Day 36](/day-36/). It is used to find all the matches of a given text or regex from the g...

Nmap short for Network Mapper is a command-line utility used to scan large networks as well as small hosts. These scans are done using IP packets th...

This is the 10th post in the Linux Series and may be the last if I didn't found anymore basic topics to learn that are specific to Linux and this po...

Last eight posts were all about the basics of Linux, working with the command-line, handling User, Groups and Files and Permissions and all other th...

This is the 8th post in the Linux Series and as I mentioned in the last post this post will be about the file permissions in the Linux FileSystem. T...

This is the seventh post in the Linux Series and last time I wrote about the users and file persmissions etc and also a little about groups. This po...

This is the sixth post in the Linux series and it will be about Users and Permissions in Linux. But first of all what are users and permissions in L...

This is the fifth post in the Linux Series and this will be all about searching and locating files and some other concepts and commands that are use...

This will be the fourth post in the Linux Series and It will be all about managing files and directories in the filesystem. This includes creating, ...

This is the third post in the Linux Series and this post will be about navigating the command line and getting help for commands etc. I will also wr...

This is the second post in Linux Series and in this post we will discuss about some basics of Linux like File System and some other topics like shel...

This is the first post in the Linux Series that I will be doing this month. I will try to learn all about Linux from scratch and everything that a d...

 This might be the last post in the Networking Series. And this will be all about Internet. What it i...

 This the the seventh post in the Networking Series and last time we discussed about...

 Last day I explained about the Layers of the OSI model and how each layer is responsible for differen...

 The **Open System Interconncetion** Model is a conceptual model that defines a set of protocols that ...

 Today is the fourth day of the Networking Series and today's topic will be about TCP/IP and the OSI...

 So far we have discussed what is a network and what are some network devices and now we wil...

 This is the second post in the Networking Series. Last post was about what is a Computer Network? and...

 This is the first post in a series of post that I will be writing on Networking from the ground-up....

Today was a busy day so i didn't learn anything new so I will just write a little post about a part of the web which made the web possible. I am tal...

Most people think that the Web and the Internet is a same thing but actually they are not. The Web is just a small part of the Internet. ## So Wh...

Last day's post was about what a URL is and toady I will write about a subpart of a URL called Domain Name. So today's question is what is a Domain ...

Have you ever wondered what all the text that appears in the url bar when you search for something on the internet or browse a website means? It is ...

Everyone who gets into web-development and programming, at some point, asks himself/herslef the question, What is Linux Command Line? and that's the...

This is the third post on WebSecurity, First being on [XSS or Cross-Site Scripting](/day-16/), Second on [SQL-Injection](/day-17/) and in this one I...

I wrote about one of the most widely used WebAttacks in the last post which was XSS or Cross-Site Scripting which is a technique used by programmers...

XSS or Cross-Site Scripting is a type of attack that injects JavaScript Code into client side of the website that runs on the user's browser without...

This is the third and last time i am going to talk about DevTools Lighthouse Report on my site. As I wrote two times before that I ran a Lighthouse ...

There was [this](https://www.reddit.com/r/MachineLearning/comments/kuc6tz/d_a_demo_from_1993_of_32yearold_yann_lecun/) video I saw some days ago on ...

This website as I wrote some days ago about DevTools Lighthouse report lacks somethings which cause low performance and SEO ratings in the report an...

If you have ever read a blog post on Medium.com, you will see that how much readable the post design is. The line width is enough so that you don't ...

I think I started learning React a month or two ago and when I started learning it I thought it would take some time to learn as I had already learn...

I just ran a Chorome DevTools Lighthouse Test which lets you "Identify and fix common problems that affect your site's performance, accessibility, a...

One of the oldest question in the webdev book is how can I, a developer, get my website on top results of a search engine like Google and DuckDuckGo...

Most time I spent on this project today was deploying this blog to GitHub Pages. First I deployed it to gh-pages branch of the zainsci-blog repo and...

This is the first time I am doing bloging just for the sake of learning more and more everyday and doing more stuff and be more produtive so I don't...

Time management was becoming a mess for me as I was trying to work on this blog and was also trying to learn and to some of the Java Android Project...

Today I didn't learn much because I was working most of my time on this Gatsby Blog and only I think learned one thing about a certain keyword in Ja...

Today I decided to make a simple Chrome Extension and also going through Android Java Course that I started on the first day of the year. ## What...

It's third day of the year and I didn't do much because I am learning about Android App Development. ## What I Learned Today ### 💻 Programmin...

Today is the second day of the year and i am trying to find the best React framerwork for this blog and right now thinking of working with GatsbyJS....

It's the first day of the year and I decided to learn Android and iOS Development. I am also starting this little blog where I will make one post ea...