Mod-Perl is an add-on for the Apache web server software, which makes it possible to use the Perl language to add new features for the Apache server, and to increase the speed of Perl applications by as much as 30 times. In other words mod_perl is a perl interpreter which is built into the Apache web server. Mod_perl brings together Apache and Perl, two of the most powerful and mature technologies available to the online world today.

Mod_perl gives the Apache server the ability to execute Perl code directly without having to call a CGI which reduces the startup burden associated with running Perl scripts from the web server. It also allows variables to persist across multiple requests, and lets user authentication be extended to anything that can be written in Perl i.e authenticate web access against an SMB or RADIUS server without having to write an Apache module to do the job.

CPAN stands for Comprehensive Perl Archive Network. It is a canonical location for Perl code and modules & a source for for knowledge, software and documentation for the Perl programming language.

Cpan plays an important role in providing modules & scripts which are not included in the Perl standard distribution.

Cpan Search:
CPAN Search is a search engine for the distributions, modules, docs, and ID’s on CPAN. It was conceived and built by Graham Barr as a way to make things easier to navigate. Originally named TUCS [ The Ultimate CPAN Search ] it was later named CPAN Search or Search DOT CPA .

Site: http://www.cpan.org

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that can be freely used, copied, modified and distributed. Its license is compatible with the GPL. It runs on all major operating systems. The functionality of ImageMagick is typically utilized from the command line or the features can be used from programs written in any programming language.

ImageMagick, version 6.2.9, is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX. ImageMagick can be use to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Features:

• Format conversion: convert an image from one format to another (e.g. PNG to JPEG).
• Transform: resize, rotate, crop, flip or trim an image.
• Transparency: render portions of an image invisible.
• Draw: add shapes or text to an image.
• Decorate: add a border or frame to an image.
• Special effects: blur, sharpen, threshold, or tint an image.
• Text & comments: insert descriptive or artistic text in an image.
• Image identification: describe the format and attributes of an image.
• Animation: create a GIF animation sequence from a group of images.
• Composite: overlap one image over another.

Site: http://www.imagemagick.org

A popular, object-oriented scripting language used for writing system utilities and Internet scripts. Python’s design is notably clean, elegant, and well thought through. It can used for different types of softwares development. Python offers a strong support for inregation with other languages and tools & comes with extensive standard libraries.

Python runs on Windows Servers, Linux Servers /Unix Servers, Mac OS X, OS/2, Amiga, Palm Handhelds, and Nokia mobile phones. Python has also been ported to the Java and .NET virtual machines. Python is distributed under an OSI-approved open source license that makes it free to use, even for commercial products.

Site: http://www.python.org

Documentaion: http://www.python.org/doc

PEAR is a framework and distribution system for reusable PHP components. is short for “PHP Extension and Application Repository” and is pronounced just like the fruit. The purpose of PEAR is to provide ‘a structured library of open-sourced code for PHP users’, ‘system for code distribution and package maintenance’, ‘standard style for code written in PHP’, ‘the PHP Extension Community Library’.

Pear Group: The PEAR Group is the governing body of PEAR.

Site: http://pear.php.net/

Manual: http://pear.php.net/manual/

FAQ: http://pear.php.net/manual/en/faq.php

Support: http://pear.php.net/support

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