The z/OS System Logger is a function provided by the operating system to exploiters running on z/OS. The number of exploiters of this component is increasing, as is its importance in relation to system performance and availability. This IBM Redbooks document provides system programmers with a solid understanding of the System Logger component and guidance about how it should be set up for optimum performance with each of the exploiters. System Logger is an MVS component that provides a logging facility for applications running in a single-system or multi-system sysplex. The advantage of using System Logger is that the responsibility for tasks such as saving the log data (with the requested persistence), retrieving the data (potentially from any system in the sysplex), archiving the data, and expiring the data is removed from the creator of the log records. In addition, Logger provides the ability to have a single, merged, log, containing log data from multiple instances of an application within the sysplex.

With more than 16 million PDAs shipped to date, Palm has defined the market for handhelds, having dominated this class of computing devices ever since it began to outpace competitors six years ago. The company's strength is the Palm OS, and developers loyal to this powerful and versatile operating system have created more than 10,000 applications for it. Devices from Handspring, Sony, Symbol, HandEra, Kyocera, and Samsung now use Palm OS, and the number of registered Palm Developers has jumped to 130,000. If you know C or C++, and want to join those who are satisfying the demand for wireless applications, then Palm OS Programming: The Developer's Guide, Second Edition is the book for you. With expanded coverage of the Palm OS--up to and including the latest version, 4.0--this new edition shows intermediate to experienced C programmers how to build a Palm application from the ground up. There is even useful information for beginners. Everything you need to write a Palm OS application is here, from user interface design, to coding a handheld application, to writing an associated desktop conduit. All the major development environments are discussed, including commercial products such as Metroworks CodeWarrior, Java-based environments such as Sun KVM and IBM VisualAge Micro Edition, and the Free Software Foundation's PRC-Tools or GCC. The focus, however, is C programming with CodeWarrior and PRC-Tools. New additions to the second edition include: A tutorial that takes a C programmer through the installation of necessary tools and the creation of a small handheld application. A new chapter on memory, with a comprehensive discussion of the Memory Manager APIs. Greatly expanded discussions of forms, forms objects, and new APIs for the Palm OS. Updated chapters on conduits that reflect the newer Conduit Development Kit. The best-selling first edition of this book is still considered the definitive guide for serious Palm programmers; it's used as the basis of Palm's own developer training materials. Our expanded second edition promises to set the standard for the next generation of Palm developers.

PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. Our expert industry analysis and practical solutions help you make better buying decisions and get more from technology.

Software -- Operating Systems.