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Hello Pals !! Have you noticed at any point some parallel lines on any of the product like ice-cream, cold-drinks, clothes, mobile etc? Have you ever wondered what these parallel lines are and what is its use? Well it is nothing but a barcode. A barcode is a way of representing unique number of a product in visual form. Have a look at image below.                               A Sample One Dimensional (1D) Barcode Image                                        This type of image you might have noticed before on products. This is a barcode. A barcode is a unique number or identification given to a product. The barcode is always unique for a product. It means, say a particular number 123 is taken as a barcode for a product COKE 1 Liter bottle then this 123 number cannot be used by any other produ...

Hello Pals !! This corona virus named Covid19 is a new name added in our dictionary now. No matter how much we are fighting it but it looks it will be a part of our lives for some time in future now. Although the entire world is working to find its vaccine but it will take time and virus is not going anywhere till it. As we do not have any vaccine yet and world cannot be put under lockdown for indefinite amount of time, the question arises what is the solution then? As many countries are preparing to ease lockdown, there is a talk going around everywhere as to what will be a new normal in current times? India is a densely populated country and is currently under lockdown. It is one of the biggest lockdown of world as nearly 1.3 billion people are currently on hold. As lockdown is taking its toll on economy, it is certain India will also ease restrictions in near future. Here are few points about what will be a new normal and how it can be achieved. It is quite certain t...

Hello Pals !! This post is about Drivers. By drivers we mean someone who is driving. right? Well yes but in computer world, a driver is not a driver of a car or bus as we understand. Although the work of the driver is acting as a medium between operating system and a particular hardware device. What is a Driver in Computer World ? A driver in computer means a set of instructions or files which acts as a medium between operating system and a particular hardware device. Without specific drivers of a hardware device, a computer's operating system will not be able to recognize the dev ice and device will not work. Different hardware devices come with their respective drivers for specific operating systems. Let us take an example. Suppose i have attached a newly bought printer to my laptop or a computer. This printer is unknown to my laptop so it will not work unless i install the required drivers. My laptop's operating system is unable to understand this new device ...

Hello Pals !! This post is about servers. You must have heard this name many a times and might have tried to read about it. Many of you may still have been confused about what exactly is a server? So in this post i will try to explain a server in a very simplistic manner. A server is a centralized machine/hardware/software which serves other machines/hardware/softwares called clients. By centralized we mean that the server is responsible for storing and processing of data for its clients which may be at a remote place and are connected to server which is at yet another place. A server can be a computer to which other computers are connected through LAN (Local Area Network) or through Internet .Let us understand it in a more simpler way by taking an example of a small server. Suppose i have three computers named C1, C2 and C3. Lets say C1 is my database server and C2 and C3 are connected to this server C1 through a LAN (Local Area Network). As C1 is the server it means ...