"Even connecting a few programs across a few sockets is plain nasty when you start to handle real life situations. Trillions? The cost would be unimaginable. Connecting computers is so difficult that software and services to do this is a multi-billion dollar business. So today we're still connecting applications using raw UDP and TCP, proprietary protocols, HTTP, Websockets. It remains painful, slow, hard to scale, and essentially centralized. To fix the world, we needed to do two things. One, to solve the general problem of "how to connect any code to any code, anywhere." Two, to wrap that up in the simplest possible building blocks that people could understand and use easily. It sounds ridiculously simple. And maybe it is. That's kind of the whole point." If you are a programmer and you aim to build large systems, in any language, then Code Connected is essential reading. Code Connected Volume 1 takes you through learning ZeroMQ, step-by-step, with over 80 examples. You will learn the basics, the API, the different socket types and how they work, reliability, and a host of patterns you can use in your applications. This is the Professional Edition for C/C++.

Discover why ZeroMQ is rapidly becoming the programming framework of choice for exchanging messages between systems. With this practical, fast-paced guide, you’ll learn how to use this lightweight and highly flexible networking tool for message passing in clusters, the cloud, and other multi-system environments. Created by ZeroMQ maintainer Pieter Hintjens and volunteers from the framework’s community, this book takes you on a tour of different real-world applications, with extended examples in C. You’ll learn how to use specific ZeroMQ programming techniques, build multithreaded applications, and create your own messaging architectures.

The classic guide to how computers work, updated with new chapters and interactive graphics "For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming. Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think." - Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes Computers are everywhere, most obviously in our laptops and smartphones, but also our cars, televisions, microwave ovens, alarm clocks, robot vacuum cleaners, and other smart appliances. Have you ever wondered what goes on inside these devices to make our lives easier but occasionally more infuriating? For more than 20 years, readers have delighted in Charles Petzold's illuminating story of the secret inner life of computers, and now he has revised it for this new age of computing. Cleverly illustrated and easy to understand, this is the book that cracks the mystery. You'll discover what flashlights, black cats, seesaws, and the ride of Paul Revere can teach you about computing, and how human ingenuity and our compulsion to communicate have shaped every electronic device we use. This new expanded edition explores more deeply the bit-by-bit and gate-by-gate construction of the heart of every smart device, the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold's companion website, CodeHiddenLanguage.com, uses animated graphics of key circuits in the book to make computers even easier to comprehend. In addition to substantially revised and updated content, new chapters include: Chapter 18: Let's Build a Clock! Chapter 21: The Arithmetic Logic Unit Chapter 22: Registers and Busses Chapter 23: CPU Control Signals Chapter 24: Jumps, Loops, and Calls Chapter 28: The World Brain From the simple ticking of clocks to the worldwide hum of the internet, Code reveals the essence of the digital revolution.

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. Master Cisco CCNA 200-301 exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with exam preparation tasks Practice with realistic exam questions in the practice test software CCNA 200-301 Official Cert Guide, Volume 1, Second Edition from Cisco Press enables you to succeed on the exam the first time and is the only self-study resource approved by Cisco. Best-selling author Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. This complete study package includes A test-preparation routine proven to help you pass the exams Do I Know This Already? quizzes, which enable you to decide how much time you need to spend on each section Chapter-ending Key Topic tables, which help you drill on key concepts you must know thoroughly The powerful Pearson Test Prep Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports A free copy of the CCNA 200-301 Network Simulator Lite software, complete with meaningful lab exercises that help you hone your hands-on skills with the command-line interface for routers and switches Links to a series of hands-on config labs developed by the author Online, interactive practice exercises that help you enhance your knowledge and hone your configuration skills 6+ hours of video mentoring from the author Study plan suggestions and templates to help you organize and optimize your study time An online, interactive Flash Cards application to help you drill on Key Terms by chapter Well regarded for its level of detail, study plans, assessment features, hands-on labs, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that ensure your exam success. This official study guide has been fully updated helping you master the topics on the latest CCNA 200-301 exam. Volume 1 topic coverage includes Networking fundamentals Implementing Ethernet LANs Implementing VLANs and STP IPv4 addressing and subnetting IPv4 routing Implementing OSPF IPv6 addressing, subnetting, and routing Content Update Program This fully updated second edition includes the latest topics and additional information covering changes to the latest CCNA 200-301 exam. Visit ciscopress.com/newcerts for information on annual digital updates for this book that align to Cisco exam blueprint version changes. Companion Website: The companion website contains more than 400 unique practice exam questions, CCNA Network Simulator Lite software, online review and practice exercises, key term flash cards, and 6+ hours of video training. In addition to the wealth of updated content, this new edition includes a series of free hands-on exercises to help you master several real-world configuration and troubleshooting activities. These exercises can be performed on the CCNA 200-301 Network Simulator Lite, Volume 1 software included for free on the companion website that accompanies this book. This software, which simulates the experience of working on actual Cisco routers and switches, contains the following free lab exercises, covering topics in Part II and Part III, the first hands-on configuration sections of the book: Configuring Local Usernames Configuring Hostnames Interface Status I Interface Status II Interface Status III Interface Status IV Configuring Switch IP Settings Switch IP Address Switch IP Connectivity I Switch CLI Configuration Process I Switch CLI Configuration Process II Switch CLI Exec Mode Setting Switch Passwords Interface Settings I Interface Settings II Interface Settings III Switch Forwarding I Switch Security I Switch Interfaces and Forwarding Configuration Scenario Configuring VLANs Configuration Scenario VLAN Troubleshooting

"Power sources & conversion: resistors, capacitors, inductors, switches, encoders, relays, transistors"--Cover.

Elsevier and the American Medical Association have partnered to co-publish this ICD-9-CM reference by Carol J. Buck! Code efficiently and effectively with Carol J. Buck's 2012 ICD-9-CM for Hospitals, Volumes 1, 2, & 3, Professional Edition. Combining Netter's Anatomy artwork and the 2011 Official Guidelines for Coding and Reporting (OCGR) with a format designed by coders for coders, this handy, spiral-bound reference helps you easily access the information you need to stay up to date and ensure the most accurate billing and maximum reimbursement in physician-based and inpatient coding. Plus, you can take this resource into your certification exams for enhanced testing support!