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Our News Blog : Updates & Interesting Tit-Bits!

Graphic Images, Compression & Common File Types

Graphic Images, Compression & Common File Types

Common Graphic Types & File Compression Many common graphics file-types utilise mathematical compression techniques to make them smaller, so they take up less space on your drive, and download faster over the internet (which is especially important for websites - as otherwise pages can take forever to load). .JPG files, for example, use a 'lossy' compression system which means that some of the data is lost during compression. The algorithm essentially works through the picture and removes a certain amount of detail information. How much it removes depends on the quality settings when the file is created. Lost information is...

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Why Does My Hard Drive Show Less Space Than Advertised?

Why Does My Hard Drive Show Less Space Than Advertised?

First, we need to explain how computer storage size is measured... Computer file sizes are measured in bytes, kilobytes (kB), megabytes (MB), gigabytes (GB) & Terabytes (TB). And there are higher values too, which we'll come to later. One byte is equal to 8 bits - where a 'bit' is a 'binary digit' which can be just 1 or 0. In binary (which is a base 2 numbering system - as opposed to our usual 'base 10' or 'decimal' system), eight bits can therefore represent integer (whole) numbers from 0 to 256. When we count in decimal, each time we...

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What Are Web Servers & How Does Web Hosting Work?

What Are Web Servers & How Does Web Hosting Work?

The Internet runs on what we call the 'client/server' architecture. A website sits on a web 'server' (a powerful, specially configured computer,) and is viewed through a software 'client' - which is usually a web browser such as Chrome, Firefox or Internet Explorer (see our previous post about Web Browsers). The term 'Web Server' can actually refer both to the physical computer, and also to the software application that delivers the content. The most prominent web server platforms worldwide are 'Apache' and 'Microsoft IIS' which command 20% and 40% of the market share respectively, with nginx building its following at 18%...

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URL's, Domains & IP Addresses Explained

URL's, Domains & IP Addresses Explained

What Is A URL? A URL (Uniform Resource Locator) is a pointer to (or the address of) a web page or website. You will also occasionally hear the more technical term URI (Uniform Resource Identifier) - but for our purposes, URL is the term to understand. A URL is made up of two parts: The first part, known as the 'scheme' defines the protocol used to access the file. The second part contains the domain name of the server where the information is located, together with the file path and name. e.g.: http://www.example.com/index.htm The most common scheme is HTTP (HyperText...

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What's The Difference Between A Search Engine & A Browser?

What's The Difference Between A Search Engine & A Browser?

Google & You Tube did a survey some years ago, and found that less than 5% of people knew the difference. So you're definitely not alone if you’re not sure! Here's an explanation, with a breakdown of the main differences. You'll see why each is vitally important in it's own way, and the different choices and options you have available... Search Engines A Search Engine is essentially a dynamic website that holds a huge index of all the web-pages that it thinks are worth listing. It's kind of like the index at the back of a reference book. The bigger...

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