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Date: 2007-03-05
Technology News:
Company News:
Data Compression Basics - Part 2
Lossy Compression
This is the second in a series of three articles about compression techniques, with particular focus on media (stills, audio and video). It does not require any special knowledge of information theory, mathematics or programming. This part describes lossy compression techniques used for audio and stills, including prediction, approximation, transform functions, selective downsampling and quantization. It also covers some concepts of perceptual (psychovisual and psychoacoustic) compression models.

BlueTie Free
Collaborative, Web-based email, calendaring, organizing software
With the Internet becoming a ubiquitous in most small office Home Office establishments, more users are turning to the Internet as a tool for their daily tasks thanks to applications that run in a Web browser. What was previously the domain of dedicated software that had to be installed on individual computers has fast been pushed aside for Web based tools for individuals as well as in collaborative environments.

IBM IntelliStation ZPro 3GHz dual quad workstation
Creative content machine with expandability
Workstation manufacturers have come and gone over the last decade, but one company has continued to build and offer solid systems since, well since the advent of the "IBM-Compatible" personal computer. That company is none other than IBM, the inventor of the PC. With the company's IntelliStation line entering its second decade this year, the family of workstation class computers has forged on with creative workstations as others fell by the wayside or were gobbled up by larger competitors.

Data Compression Basics - Part 1
Lossless Compression
This is the first of a series of three articles about data compression, with particular focus on media (graphics, photography, audio and video). It describes the main techniques used by modern compressors in an accessible language and with practical everyday examples. Part 1 describes the basic concepts behind lossless compression algorithms like RLE and LZW, used by file formats such as ZIP, TGA, GIF and PNG.

BlackBerry redesign e-mails it in, borrowing trackball and looks from Pearl

The maker of BlackBerry e-mail phones has managed to reinvent its wheel repeatedly, churning out surprising new models and innovative redesigns that have repeatedly left rivals in the dust. But it's not so easy to wow the masses with every product launch, and the latest BlackBerry reveals a little design fatigue at Research in Motion Ltd.


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