An Essential Reference for Intermediate and Advanced R Programmers Advanced R presents useful tools and techniques for attacking many types of R programming problems, helping you avoid mistakes and dead ends. With more than ten years of experience programming in R, the author illustrates the elegance, beauty, and flexibility at the heart of R. The book develops the necessary skills to produce quality code that can be used in a variety of circumstances. You will learn: The fundamentals of R, including standard data types and functions Functional programming as a useful framework for solving wide classes of problems The positives and negatives of metaprogramming How to write fast, memory-efficient code This book not only helps current R users become R programmers but also shows existing programmers what’s special about R. Intermediate R programmers can dive deeper into R and learn new strategies for solving diverse problems while programmers from other languages can learn the details of R and understand why R works the way it does.

Digital culture is often characterized as radically breaking with past technologies, practices, and ideologies rather than as reflecting or incorporating them. Memory Bytes seeks to counter such ahistoricism, arguing for the need to understand digital culture—and its social, political, and ethical ramifications—in historical and philosophical context. Looking at a broad range of technologies, including photography, print and digital media, heat engines, stereographs, and medical imaging, the contributors present a number of different perspectives from which to reflect on the nature of media change. While foregrounding the challenges of drawing comparisons across varied media and eras, Memory Bytes explores how technologies have been integrated into society at different moments in time. These essays from scholars in the social sciences and humanities cover topics related to science and medicine, politics and war, mass communication, philosophy, film, photography, and art. Whether describing how the cultural and legal conflicts over player piano rolls prefigured controversies over the intellectual property status of digital technologies such as mp3 files; comparing the experiences of watching QuickTime movies to Joseph Cornell’s “boxed relic” sculptures of the 1930s and 1940s; or calling for a critical history of electricity from the Enlightenment to the present, Memory Bytes investigates the interplay of technology and culture. It relates the Information Age to larger and older political and cultural phenomena, analyzes how sensory effects have been technologically produced over time, considers how human subjectivity has been shaped by machines, and emphasizes the dependence of particular technologies on the material circumstances within which they were developed and used. Contributors. Judith Babbitts, Scott Curtis, Ronald E. Day, David Depew, Abraham Geil, Sharon Ghamari-Tabrizi, Lisa Gitelman, N. Katherine Hayles, John Durham Peters, Lauren Rabinovitz, Laura Rigal, Vivian Sobchack, Thomas Swiss

Computer Science

Not only does almost everyone in the civilized world use a personal computer, smartphone, and/or tablet on a daily basis to communicate with others and access information, but virtually every other modern appliance, vehicle, or other device has one or more computers embedded inside it. One cannot purchase a current-model automobile, for example, without several computers on board to do everything from monitoring exhaust emissions, to operating the anti-lock brakes, to telling the transmission when to shift, and so on. Appliances such as clothes washers and dryers, microwave ovens, refrigerators, etc. are almost all digitally controlled. Gaming consoles like Xbox, PlayStation, and Wii are powerful computer systems with enhanced capabilities for user interaction. Computers are everywhere, even when we don’t see them as such, and it is more important than ever for students who will soon enter the workforce to understand how they work. This book is completely updated and revised for a one-semester upper level undergraduate course in Computer Architecture, and suitable for use in an undergraduate CS, EE, or CE curriculum at the junior or senior level. Students should have had a course(s) covering introductory topics in digital logic and computer organization. While this is not a text for a programming course, the reader should be familiar with computer programming concepts in at least one language such as C, C++, or Java. Previous courses in operating systems, assembly language, and/or systems programming would be helpful, but are not essential.

For more than 40 years, Computerworld has been the leading source of technology news and information for IT influencers worldwide. Computerworld's award-winning Web site (Computerworld.com), twice-monthly publication, focused conference series and custom research form the hub of the world's largest global IT media network.

Introduction to 6800/6802 Microprocessor Systems: Hardware, Software and Experimentation introduces the reader to the features, characteristics, operation, and applications of the 6800/6802 microprocessor and associated family of devices. Many worked examples are included to illustrate the theoretical and practical aspects of the 6800/6802 microprocessor. Comprised of six chapters, this book begins by presenting several aspects of digital systems before introducing the concepts of fetching and execution of a microprocessor instruction. Details and descriptions of hardware elements (MPU, RAM, ROM, PIA, etc.) necessary for the design and implementation of dedicated systems are also considered. Subsequent chapters focus on how the 6800/6802 microprocessor can be programmed at the machine-code level and by assembler programming techniques; the principles involved in interfacing the MPU system to peripheral equipment; practical aspects of parallel and serial data transfer techniques using the PIA and ACIA, respectively; hardware and software features of the Motorola MEK6802D5E evaluation system. The book concludes by discussing details of 12 investigations that may be undertaken using the MEK6802D5E evaluation system. This monograph is intended for students, technicians, scientists, and engineers.