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The C Programming Language by Brian Kernighan and Dennis Ritchie is the complete guide to the ANSI standard C language programming. The authors are the developers of C, and show readers show to take advantage of all of the rich tapestry of C. The book is a classic. However, there is a good range of books that teach C and are available to download without charge. To cater for all tastes, we have chose a diverse selection of informative books for C.

Prolog is generally regarded as a difficult language to get to grips with. The focus of this article is to select some of the finest Prolog books which help programmers master this language, and develop an in-depth understanding of recursion, constraint logic programming, and searching problem trees. All of the books are available to download for free.

Lisp is a practical, expression-oriented, interactive programming language which uses linked lists as one of its major data structures. A Lisp list is written with its elements separated by whitespace, and surrounded by parentheses. Lisp source code is itself comprised of lists. The language has many unique features that make it excellent to study programming constructs and data structures. Many regard Lisp as an extremely natural language to code complex symbolic reasoning programs. Lisp is popular in the fields of artificial intelligence and symbolic algebra.

PHP has been at the helm of the web for many years. It is an extremely popular, interpreted scripting language that is ideally suited for web development. This language powers millions of web sites on the net and is extremely well supported by its user community. It is released under a non-copyleft free software license / open source license. PHP can be deployed on most Web servers and also as a standalone shell on almost all operating systems and platforms.

An internet forum application is an online discussion site where individuals hold discussions in the form of posted messages. This type of software is a very powerful tool to run online communities, to disseminate information, share experiences and ideas, receive online support, interact with others learning new intercultural skills, and much more.

Individuals wanting to learn and develop their understanding of the Perl programming language have a huge selection of books to choose from. There are hundreds of enlightening Perl books that are available to purchase at reasonable cost. However, given that Perl is an open source programming language, with an eclectic heritage written by Larry Wall and a cast of thousands, it is satisfying to see that some authors have made their Perl publications available to download without charge, and released under a freely distributable license.

Ruby is a general purpose, structured, flexible, fully object-oriented programming language. It features a fully dynamic type system, which means that the majority of its type checking is performed at run-time rather than at compilation. This stops programmers having to overly worry about integer and string types. Ruby has automatic memory management. The language shares many similar traits with Python, Perl, Lisp, and Smalltalk.

The focus of this article is to select some of the finest Python books which are available to download for free. The vast majority of the books featured here can also be freely distributed to others.

A web server is computer software that delivers web pages on request to clients using the Hypertext Transfer Protocol (HTTP). It serves the files that form web pages to web users; the content is in the form of HTML documents, images, style sheets, and scripts.

Most components of a web application produce operational log files. Some logs are written by each application in a unique format. Other components generate out-of-the-box logs. Monitoring system logs is an essential activity for anyone charged with taking decisions. System administrators need to monitor logs to look out for unusual activity, to troubleshoot applications and websites that are under their control. By scanning logs, extracting and correlating data, system administrators can investigate and resolve problems, carry out capacity planning, help to detect vulnerabilities, ensure the smooth running of services and balancing capacity, and establish who has used services and when.

Disk partitioning is the means of dividing a hard disk drive into multiple logical storage units referred to as partitions. A partition is a contiguous set of blocks on a drive that are treated as an independent disk.

Mobile application development is the process by which software is created for handheld devices. This article focuses on tools which help developers create applications for mobile phones. The purpose of application frameworks and libraries is to enable developers to spend their time on the creative and interesting part of development, alleviating the repetitive overhead associated with common development patterns.

A podcast is a form of digital media consisting of an episodic program downloaded or streamed over the Internet using an XML protocol called RSS. Podcast episodes can be audio radio, video files, PDFs, or ePub files. These episodes can be viewed and listened to on a number of different devices including computers, portable media players, and smartphones.

Two of the most popular control panels are Plesk and cPanel. These are web-based graphical control panels that allow you to easily and intuitively administer websites, DNS, e-mail accounts, SSL certificates and databases. However, they are both proprietary software. Hosting providers will charge a monthly fee for these control panels to be installed on a server. Fortunately, there is a wide range of open source software available to download at no cost that offers a real alternative to these proprietary solutions.

Web server benchmarking is a way of determining the performance of a web server with the aim of establishing how well it copes under a sufficiently high workload. Performance testing is important to help maintain continuous system performance.

Computer classes in the UK have been constrained by the national curriculum for ICT, with students having to limit their computing activities to learning applications such as Word and PowerPoint, and using the internet to help with their school work. However, learning how to use Microsoft Office is often of little or no interest to students. Students are motivated by interactive activities such as programming, as they like to make things to find out how they work.

RAW files are not directly usable, but have all the necessary information to create an image. RAW files usually offer higher color depth, higher dynamic range, and preserve most of the information of the image compared with the final image format. The downside of RAW files is that they take up far more storage space. Dynamic range in photography describes the ratio between the maximum and minimum measurable light intensities (white and black, respectively).

Word processors are a general application software that are perfect for constructing business documents, letters, batch mailings using templates, etc. However, many word processors are too obtrusive and distracting for writers. What is needed is software that helps concentrate on the content of the novel, sketch out the chapters and scenes, work out the best structure, import research, add locations, characters and objects.

The electronic design market has witnessed rapid expansion in recent years, with the market becoming increasingly more global. With the rise of semiconductor industries in many emerging countries, such as China, good quality EDA software is in strong demand.

Professional astronomers are in a very fortunate profession. They have the opportunity to continue their love of astronomy, travel the world, make significant discoveries, and get paid at the same time.