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Showing: 55041-55050 results of 55156

The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading sound using light patterns. While he received many patents for his process, he was initially ignored by the film industry. In order to promote and demonstrate his process he made several hundred sound short... more...

MCITP GUIDE TO MICROSOFT WINDOWS SERVER 2008, Server Administration (Exam 70-646) prepares the reader to administer networks using the Microsoft Windows Server 2008 operating system and to pass the MCITP 70-646 certification exam. Focusing on updates to the software and in-depth coverage of the administration aspects of Windows Server 2008, this book includes topics such as installing, configuring, managing and troubleshooting. In addition, the book... more...

Useful business analysis requires you to effectively transform data into actionable information. This book helps you use SQL and Excel to extract business information from relational databases and use that data to define business dimensions, store transactions about customers, produce results, and more. Each chapter explains when and why to perform a particular type of business analysis in order to obtain useful results, how to design and perform the... more...

Accessibility is about making websites that don't exclude people with visual, aural, or physical disabilities. Through real-world examples, this practical book will teach you how to create or retrofit accessible websites quickly and easily. This book is aimed toward web professionals creating accessible websites or updating existing sites to make them accessible. It's also useful for corporate, university, and government policy-makers involved in the... more...

Packed with tips and tricks for creating dazzling imagesExplore layers, change backgrounds, fix flaws, and artistically enhance photosPhotoshop Elements 5 is a powerhouse, and here's the fast and easy way to get up to speed on all the coolest features. Whether you're new to digital photography or an old pro, you'll find out how to make quick fixes, fine-tune exposure, brush away flaws, and print and share photos.Discover how toOrganize and manage your... more...


Compared to industrial-strength database products such as Microsoft's SQL Server, Access is a breeze to use. It runs on PCs rather than servers and is ideal for small- to mid-sized businesses and households. But Access is still intimidating to learn. It doesn't help that each new version crammed in yet another set of features; so many, in fact, that even the pros don't know where to find them all. Access 2007 breaks this pattern with some of the most... more...

iBATIS in Action teaches Java developers and architects how to use the iBATIS framework to map relational databases to object-oriented programs. Written by the creator of iBATIS, this practical book presents patterns and solutions that readers can apply immediately. iBATIS in Action shows Java developers how to tackle the problem of data persistence using the elegant iBATIS framework. iBATIS helps developers solve the problem of connecting- or mapping-... more...

Create queries that make forms and reports usefulDevelop forms to access the data you need and make reports that make sense!If you thought you had to use a spreadsheet program to produce reports and forms, guess what! Access can turn out great-looking forms and reports that actually show what's going on with your data -- if you know how to ask it nicely. This hands-on guide helps you do just that, and it works with all versions of Access.Discover how... more...

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The MCTS is Windows Server Virtualization Configuring exam, and is Microsoft’s newest addition to their exam repertoire and tests candidates’ ability to use Hyper-V and server virtualization as part of their network infrastructure solution. The exam targets IT professionals who are looking to enhance their skills and distinguish themselves from the rest of the pack. This guide reviews the tasks that are mandatory for candidates to know: installing... more...