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A backlink is an incominglinkfrom an externalwebsiteto specificwebpage. For example, if you publish a webpage and 20 other websites link to it, your webpage has 20 backlinks. Links to the page from within your own website are not included in the backlink total.

Web developers benefit from backlinks (or "inlinks") in two different ways — direct traffic and search result placement. As more links to a specific webpage are published on external sites, there is greater potential for traffic to be generated from other websites. This is called direct traffic. By increasing direct traffic, a website can gradually grow its presence on theWeband generate a steady stream of visitors from other websites.

While direct traffic is helpful, most websites generate the majority of their traffic throughsearch engines. Since search engines use backlinks as an important part of the theiralgorithmsfor search result placement, external links are important for good search ranking. Therefore, generating backlinks has become common practice for search engine optimization, orSEO. The more backlinks a webpage has, the better the chance that the page will rank highly in search results for relevantkeywords. If a website has many pages that have backlinks, the overall number of incoming links may help increase the ranking of all pages within the website. While most backlinks point to a website'shome page, incoming links to other pages within the website are beneficial as well.

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An applet is a smallapplicationdesigned to run within another application. While the term "applet" is sometimes used to describe small programs included with a computer'soperating system, it usually refers to Java applets, or small applications written in theJavaprogramming language.

Unlike ordinary applications, Java applets cannot be run directly by the operating system. Instead, they must run within the Java Runtime Environment (JRE), or within another program that includes a Javaplug-in. If there is no JRE installed, Java applets will not run. Fortunately, Java is freely available for Windows, Mac, and Linux systems, which means you can easily download and install the appropriate JRE for your system. Since Java applets run within the JRE and are not executed by the operating system, they arecrossplatform, meaning a single applet can run on Windows, Mac, and Linux systems.

While applets can serve as basic desktop applications, they have limited access to system resources and therefore are not ideal for complexprograms. However, their small size and crossplatform nature make them suitable for Web-based applications. Examples of applets designed to run inweb browsersinclude calculators, drawing programs, animations, and video games. Web-based applets can run in any browser on any operating system and long as the Java plug-in is installed.

During the early years of the Web, Java applets provided a way forwebmastersto add interactive features that were not possible with basicHTML. However, in recent years, applets have been slowly replaced by newer technologies such as jQuery and HTML 5. Some browsers, like Google Chrome, no longer support the<applet>tag, and others, like Apple Safari, do not even enable Java by default. Since web developers cannot fully rely on Java support from web browsers, applets are no longer a common way to provide interactive content on the Web.

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A directory is another name for afolder.File systemsuse directories to organizefileswithin astorage device, such as anHDDorSSD. For example, system files may be located in one directory, while user files may be stored in another.

While directories often contain files, they may also contain other directories, orsubdirectories. The user folder, for instance, may include directories such as Documents, Pictures, and Videos. Each of these directories may contain files and other subdirectories. This resulting directory structure, represented visually, would look like an upside-down tree. The top-level directory of avolumethat contains all other directories is aptly labeled theroot directory.

The location of an individual file or folder within a directory can be represented by adirectory path, such asC:\Program Files (x86)\Google\Chrome\Application\. As you browse through your file system, whenever you open a subdirectory, it is called "moving down a directory." If you open the folder that contains the current directory, it is called "moving up a directory."

Directory vs Folder

The terms "directory" and "folder" can be used interchangeably. However, folders are technically the visual representation of a directory. In other words, a folder is aniconwith a name that represents a directory in the file system.

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In the 1950s, minimalism emerged as an popular art movement. In the 1990s, minimalism emerged again as a popular computer trend. As computer networking became more commonplace, minimalist computers became more common as well. In fact, these trimmed-down machines, often referred to as thin clients, are still popular today.

Thin clients function as regular PCs, but lackhard drivesand typically do not have extraI/Oports or other unnecessary features. Since they do not have hard drives, thin clients do not have any software installed on them. Instead, they run programs and access data from aserver. For this reason, thin clients must have a network connection and are sometimes referred to as "network computers" or "NCs."

Thin clients can be a cost-effective solution for businesses or organizations that need several computers that all do the same thing. For example, students in a classroom could all run the same program from a server, each using his own thin client machine. Because the server provides the software to each computer on the network, it is not necessary for each NC to have a hard drive. Thin clients also make it easier to manage computer networks since software issues need to be managed only on the server instead of on each machine.

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Bitcoin is adigitalcurrency that was introduced in 2009. There is no physical version of the currency, so all Bitcoin transactions take place over the Internet. Unlike traditional currencies, Bitcoin is decentralized, meaning it is not controlled by a single bank or government. Instead, Bitcoin uses a peer-to-peer (P2P) payment network made up of users with Bitcoin accounts.

Bitcoins can be acquired using two different methods: 1) exchanging other currencies for bitcoins, and 2) bitcoin mining. The first method is by far the most common and can be done using a Bitcoin exchange like Mt. Gox or CampBX. These exchanges allow users to trade dollars, euros, or other currencies for bitcoins.

The other method, bitcoin mining, involves setting up a computer system to solve math problems generated by the Bitcoinnetwork. As a bitcoin miner solves these complex problems, bitcoins are credited to the miner. While this seems like an easy way to earn bitcoins, the Bitcoin network is designed to generate increasingly more difficult math problems, which ensures new bitcoins will be generated at a consistent rate. Additionally, the Bitcoinprotocolandsoftwareareopen sourceto make sure the network isn't controlled by a single person or entity.

When you obtain bitcoins, your balance is stored in a secure “wallet” that isencryptedusing password protection. When you perform a bitcoin transaction, the ownership of the bitcoins is updated in the network and the balance in your wallet is updated accordingly. Bitcoin transactions are verified by the bitcoin mining systems connected to the network, so there is no need for a central bank to authorize transactions.

Since bitcoins are transferred directly from person to person, the transaction fees are small (around $0.01 per transaction). Additionally, there are no prerequisites for creating a Bitcoin account and no transaction limits. Bitcoins can be used around the world, but the currency is only good for purchasing items from vendors that accept Bitcoin.

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