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QR Codes

QR Codes

Ever wondered how a QR code works? No, me neither but it’s low-key fascinating. (Warning, there is some extremely nerdy shit here.👇 )The Quick Response code was invented by a subsidiary of Toyota to track parts across the manufacturing process. Barcodes were proving inadequate – they can only be read at certain angles and didn’t store much data relative to their size The QR code solves those issues and moreThe most distinctive thing about a QR code are these cube shapes, called Finder Patterns, that help your reader detect the code. The smaller fourth cube, the Alignment Pattern, orientates the code so it can be at any angle and the reader will still know which way is up.You’ve probably never noticed but every QR code has these alternating black and white dots called the Timing Pattern. These tell the reader how big a single module is and how big the whole QR code is – known as the version. Version 1: Smallest Version 40: BiggestInformation about the format is stored in these two strips near the Finder patterns. It’s stored twice so its readable even when QR code is partially obscured. (You’ll notice that this is a recurring theme.)This stores three crucial pieces of information: – Mask. – Error correction level – Error correction format. I know these sound super fucking boring but they are actually pretty interesting.First, error correction – what is it? Essentially, it dictates how much redundant information is stored in the code to ensure it remains readable even when part of it is missing.This is pretty amazing – If your code is outdoors you can choose a higher redundancy level to make sure it still functions when obscured. (try it)Second, the mask – what’s that? Well, QR readers work best when there are the same amount of white and black areas. But the data might not play ball so a mask is used to even things out.When a mask is applied to the code anything that falls under the dark part of the mask is inverted. A white area becomes black and black area becomes white.There are 8 standard patterns which are applied one by one. The pattern that achieves the best result is used and that info is stored so the reader can unapply the mask.Finally we get to the actual data. Weirdly, the data starts at the bottom-right corner and winds back up like pictured. It almost doesn’t matter where it starts because it can be read at any angle.The first chunk of information here tells the reader what mode the data was encoded in and the second tells it the length. In our case each character takes up 8 bit chunks, otherwise known as bytes, and there are 24 of them.There is still a bunch of left over space after our data. This is where the error correction information is stored so that it can be read if partially obscured. The way this works is actually really really complex so I’ll leave that out. That’s basically it!For the absolute nerds who made it here,  » Read More

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The term "web design" describes the layout of websites that are seen online. Instead of software development, it typically refers to the user experience components of website development. The primary focus of web design used to be creating websites for desktop browsers, but from the middle of the 2010s, designing for mobile and tablet browsers has gained significance.

What is a webdesigner?

A web designer is responsible for a website's look, feel, and occasionally even content. For instance, appearance refers to the colors, text, and images utilized. Information's organization and categorization are referred to as its layout. An effective web design is user-friendly, aesthetically pleasing, and appropriate for the target audience and brand of the website. Many websites focus on keeping things simple so that viewers won't be distracted or confused by additional information and functionality. Removing as many potential sources of user annoyance as possible is a crucial factor to take into account because the foundation of a web designer's output is a site that gains and nurtures the trust of the target audience.

Responsive and adaptive design are two of the most popular techniques for creating websites that function well on both desktop and mobile devices. In adaptive design, the website content is fixed in layout sizes that correspond to typical screen sizes, while in responsive design, information moves dynamically based on screen size. A layout that is as consistent as possible across devices is essential to preserving user engagement and trust. Designers must be cautious when giving up control of how their work will appear because responsive design can be challenging in this area. While they might need to diversify their skill set if they are also in charge of the content, they will benefit from having complete control over the final output.

What does a web design worker do?

A web designer is a member of the IT industry who is in charge of planning a website's structure, aesthetic appeal, and usability.

A skilled site designer must possess both technical know-how and creative graphic design abilities. They must be able to envision how a website will seem (its graphical design) and how it will operate (conversion of a design into a working website).

The terms web developer and designer are frequently used interchangeably but erroneously. In order to construct more complex interactions on a website, such as the integration with a database system, a web developer is frequently more likely to be a software developer who works with programming languages.