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We have all read stories about people who have experimented living without spending any money whatsoever. By growing their own food, washing in the river, using a solar panel to provide electricity, and bartering for certain goods and services, these adventures have met with limited success. However, for us mere mortals the simple fact is that we need money. Money to buy food, to purchase clothes, to pay our bills, as well as indulging in our other infinite wants and desires.

A flashcard stores information on a set of cards, with the information being typically portrayed as words and numbers. The purpose of flashcards is to enable individuals to store verbal and visual information, often as a learning drill by way of spaced repetition. The Leitner system is a popular method of studying with flashcards using spaced repetition.

Reinventing the wheel is sometimes viewed as a significant barrier to the development of open source software. Critics point out that if developers simply collaborated more with each other, instead of creating yet another Linux distribution or programming another text editor, this would help to simplify matters for users, and actually significantly advance the development of established open source projects.

The Sega Mega Drive (Sega Genesis) was a leading 16-bit video game console system. The console was developed by Sega Corporation in 1988. By current console standards, the Mega Drive's specification seem positively pedestrian. However, at its launch the console's specifications surpassed competitors in many respects. Demand for the Mega Drive took off with the release of the classic game, Sonic the Hedgehog.

Econometrics is the application of statistical or quantitative methods to understand economic issues and test theories, and models. It is the study of economic models, mathematical statistics, and economic data. It is also a set of tools which can verify or disprove economic theory using real-world data.

Usenet is a worldwide distributed Internet discussion system. It was founded in 1980 to enable users to read and post public messages to various newsgroups. As such, it predates forums, blogs, instant messaging and P2P networks.

Content control software, also commonly known as web filtering software, is software which is designed and optimised to determine what content can be viewed by the user. This software is particularly relevant to information supplied by a web browser.

Application launchers play an integral part in making the Linux desktop a more productive environment to work and play. They represent small utilities which offers the desktop user a convenient access point for application software and can make a real boost to users' efficiency.

A server log is a log file which is created and updated by a server. A common example is an access log generated by Apache (open source web server software), which provides a history of web page requests. However, Apache does not only capture information to that access log. There is also information captured in its error log as well as a process id file, script log and a rewrite log.

A terminal emulator is computer software which emulates a dumb video terminal within some other display architecture.

Video editing is the process of editing motion video footage. In the new age of personal video, video editing is becoming a central function of the desktop, with the popularity of video editing software ever increasing.

A plotting tool is computer software which helps to analyze and visualize data, often of a scientific nature. Using this type of software, users can generate plots of functions, data and data fits. Software of this nature typically includes additional functionality, such as data analysis functions including curve fitting.

MySQL is a relational database management system. It provides a very fast, multi-threaded, multi-user, and robust SQL (Structured Query Language) database server. MySQL is the most popular open source database, and is the database component of the LAMP software stack. LAMP consists of the Apache web server, MySQL and PHP, the essential building blocks to run a general purpose web server. MySQL is used and championed by many large organizations including Google, Facebook, BBC, Intel, Sun, SAP, Dell, AMD, Novell, Veritas and many others.

Developers who want to accelerate game development benefit enormously from tools known as game engines. This type of software application helps games to be coded efficiently and easily without compromising on its quality. Game engines employ state-of-the-art technology to ensure that developers can concentrate on generating new scenery, models, and sounds, or to put an alternative spin on existing game material.

Game engines offer huge benefits to game developers. The main functionality they provide is the library of core functions used in a computer game. This often includes a realtime rendering engine for 2D or 3D graphics, physics engine with collision detection, a character animation system, scene graph, sound, artificial intelligence, threading, networking, input, streaming localization support, debugging tools, integration with languages, and the provision of performance monitoring and optimization tools.

For many individuals, computer gaming is nowadays an essential part of everyday life. This should not be seen as a negative. Whilst violent computer games have sometimes been identified as contributory factors in criminal activity, and undeniably they can be very addictive, it is important to recognise the real benefits that games offer besides simply providing a means of great entertainment.

A proverb that often springs to mind during the day is that all work and no play makes Jack a dull boy. Breaking up the monotony of the daily grind (also known as work) cannot be underestimated. Computer games are a great form of entertainment, less passive that watching the TV, just as challenging as completing the Times crossword, but much more fun.

If Linux is going to make significant strides in increasing market desktop share, it needs to be able to compete with Windows in all areas. The average computer user typically just wants a single operating system to use for their work, to surf the net, to keep in contact with family and friends, and to have some fun. Having to reboot between operating systems is frankly too inconvenient for many users, as well as being perceived as too difficult. Whilst you can run many Windows software from Linux (e.g. by using virtualisation software, or Wine), again this simply appears to add to the complexity of using the PC. Furthermore, whilst Wine does allow some of the hottest Windows games to run under Linux, it is inevitable there will always be some incompatibility issues.

Surveys suggest that up to 90% of home computer users do not back up their data. That is a pretty frightening statistic bearing in mind how valuable and precious users' files are. Computer users who do not backup their files are at risk of losing all of their personal and irreplaceable documents. The hard drive in a PC can malfunction at any time, sometimes without any warning at all. Alternatively, the computer's hard disk can be damaged by an accident, a fire, flood, power cut, or infected by a virus.

There is no denying the huge selection of open source games available for Linux. Playing through all of these games would entertain many gamers for years. Nevertheless, there is still a massive market for commercial games. If Linux is ever going to usurp the desktop market, it needs a regular source of native high quality games that rival commercial games available on Windows.