Book Description

For Computer Systems, Computer Organization and Architecture courses in CS, EE, and ECE departments.

Few students studying computer science or computer engineering will ever have the opportunity to build a computer system. On the other hand, most students will be required to use and program computers on a near daily basis. Computer Systems: A Programmer’s Perspective introduces the important and enduring concepts that underlie computer systems by showing how these ideas affect the correctness, performance, and utility of application programs. The text’s hands-on approach (including a comprehensive set of labs) helps students understand the “under-the-hood” operation of a modern computer system and prepares them for future courses in systems topics such as compilers, computer architecture, operating systems, and networking.

Table of Contents
Chapter 1. A Tour of Computer Systems

Part I: Program Structure and Execution
Chapter 2. Representing and Manipulating Information
Chapter 3. Machine-Level Representation of Programs
Chapter 4. Processor Architecture
Chapter 5. Optimizing Program Performance
Chapter 6. The Memory Hierarchy Download Now »

Book Description

Ext JS 4 is a JavaScript framework that provides resources to build Rich Internet Applications with great performance. Ext JS 4 has been packed with many new features and it is difficult to master, even for seasoned experts in Ext JS 3.

Ext JS 4 First Look teaches you the main functional areas of Ext JS 4 that have significant new features, explains the new features and how to use them, while highlighting the differences between Ext JS 4 and the previous versions.

This book will give you the knowledge to make the required changes to Ext JS 3 application to build a complete Ext JS 4 application.

This book provides examples of how to load Ext JS components by demand, charts, grid, tree, forms and panels, new data model, themes and mvc architecture.

Ext JS 4 First Look provides full examples and illustrations to help you easily learn the new features of Ext JS 4.

What you will learn from this book

• Learn the major changes in Ext JS 4 and its compatibility with Ext JS 3, including how to load components by demand.
• Understand how to use the new Data package, including new features such as Model, Associations, Validations, new Proxies, etc.
• Organize Ext JS 4 components into containers Download Now »

Book Description

What are the ingredients of robust, elegant, flexible, and maintainable software architecture? Beautiful Architecture answers this question through a collection of intriguing essays from more than a dozen of today’s leading software designers and architects. In each essay, contributors present a notable software architecture, and analyze what makes it innovative and ideal for its purpose.

Some of the engineers in this book reveal how they developed a specific project, including decisions they faced and tradeoffs they made. Others take a step back to investigate how certain architectural aspects have influenced computing as a whole. With this book, you’ll discover:

• How Facebook’s architecture is the basis for a data-centric application ecosystem
• The effect of Xen’s well-designed architecture on the way operating systems evolve
• How community processes within the KDE project help software architectures evolve from rough sketches to beautiful systems
• How creeping featurism has helped GNU Emacs gain unanticipated functionality
• The magic behind the Jikes RVM self-optimizable, self-hosting runtime
• Design choices and building blocks that made Tandem the choice platform in high-availability environments for over two decades
• Differences and similarities between object-oriented and functional architectural views
• How architectures can affect the software’s evolution and the developers’ engagement

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