Thema dieses Werkes ist der Aufbau moderner Mikroprozessoren und der darauf basierenden Rechnersysteme. Nach einem UEberblick uber gangige Prozessoren stellt es grundlegende Eigenschaften von Befehlssatzen dar und skizziert, wie die Leistung von Computern beurteilt werden kann. Fundiert abgehandelt werden Techniken wie Pipelining, Out-of-order-Execution und spekulative Befehlsausfuhrung, Aufbau und Organisation des Hauptspeichers sowie Techniken zur Sprungvorhersage. Mittels frei verfugbarem Simulator und Werkzeugen zur Visualisierung werden alle grundlegenden Konzepte veranschaulicht. Dazu wird insbesondere der von Donald E. Knuth (Stanford University) entwickelte Modell-Prozessor MMIX verwendet. Mit Hilfe dieser Werkzeuge kann der Leser eigene Experimente durchfuhren und so sein Wissen vertiefen. Alle Kapitel enthalten UEbungsaufgaben mit Loesungen.

Calling all--

* telecom managers

* datacom managers with voice responsibilities

* Call Center managers

* VoIP implementers

* network integrators

* product and service developers

* industry analysts

Clear and precise analysis and discussion of PBX system design and capabilities. Allan Sulkin has a unique ability to explain complex systems in easily understandable terms. -- Joe Licata, President, Siemens Enterprise Networks

A welcome addition to the bookshelf for anyone interested in the evolving IP-PBX system. Voice and data communications managers alike will greatly benefit from this text. -- Michael Thurk, Avaya, Group Vice President - Systems

Allan Sulkins solid expertise and critical insight has been a valuable resource for the telecommunications community for over 20 years. He is uniquely qualified to articulate the very complex subject of PBX and IP telephony. -- Kanji Suzuki, former EVP of NEC America and current president and CEO of NEC Infrontia, Inc.

The most efficient (and economical) ways to bring enterprise communication systems into the Digital Age are in this guide, written by the foremost analyst in the markret space. In PBX Systems for IP Telephony, Allan Sulkin--consultant and advisor to Avaya, Siemens, Cisco, NEC, Alcatel and other world-class companies--evaluates technologies, markets, and best practices for enterprise voice systems, messaging, and customer contact centers.

The heart and brains of your communications network, the PBX (Private Branch Exchange) can be the vital link--or the missing link--that interfaces businesses and their customers. This guide, from the recognized expert in telephony systems, provides answers. Whether you need to IP-enable a PBX system for a small business, make complex choices for the advanced call center, or gain the expertise to integrate a variety of communication systems into a state-of-the-art foundation for your e-business vision, PBX Systems for IP Telephony should be your first choice. Heres why:

* No one knows PBX systems and markets better than the author, and no one is better at explaining them

* This comprehensive resource supplies nuts-and-bolts information on costs, performance, risks, and other real-world considerations difficult to research

* You get insights into the potential strengths and weaknesses of next-generation PBX systems

* Youll consult the consultant to the system designers for practical advice on systems that fit your needs and your future

* Theres no more business-aware or user-friendly guide anywhere to converging your voice systems with your IP-based data systems

When it comes to the PBX, the question often seems to be Whos job is it anyway? With this guidebook, youll be ready to take the responsibility--and get the credit.

Providing video companionship for isolated housewives, afternoon babysitting for children, and nonstop evening entertainment for the whole family, television revolutionized American society in the post-World War II years. Helping the first TV generation make sense of the new medium was the mission of Jack Gould, television critic of The New York Times from 1947 to 1972. In columns noteworthy for crisp writing, pointed insights, and fair judgment, he highlighted both the untapped possibilities and the imminent perils of television, becoming "the conscience of the industry" for many people.

In this book, historian Lewis L. Gould, Jack Gould's son, collects over seventy of his father's best columns. Grouped topically, they cover a wide range of issues, including the Golden Age of television drama, McCarthy-era blacklisting, the rise and fall of Edward R. Murrow, quiz show scandals, children's programming, and the impact of television on American life and of television criticism on the medium itself. Lewis Gould also supplies a brief biography of his father that assesses his influence on the evolution of television, as well as prefaces to each section.

In 1876, Alexander Graham Bell uttered the words that would inaugurate a new era in human communication: 'Mr. Watson, come here, I want to see you'. Bell was speaking through his new invention: the telephone. Though his name is the first to be associated with this now ubiquitous device, Bell was not working in a vacuum or entirely on his own. The second half of the 19th century was a time of great innovation, during which many people were experimenting with various designs for machines to enable human communication over great distances. Bell was simply the first to win a patent. ""Alexander Graham Bell and the Telephone"" tells the story of the man who invented the telephone, the people who helped him, and the changes that came about because of one of the greatest inventions of all time.

The message of this book is simple: the mobile phone strengthens social bonds among family and friends. With a traditional land-line telephone, we place calls to a location and ask hopefully if someone is "there"; with a mobile phone, we have instant and perpetual access to friends and family regardless of where they are. But when we are engaged in these intimate conversations with absent friends, what happens to our relationship with the people who are actually in the same room with us? In New Tech, New Ties, Rich Ling examines how the mobile telephone affects both kinds of interactions--those mediated by mobile communication and those that are face to face. Ling finds that through the use of various social rituals the mobile telephone strengthens social ties within the circle of friends and family--sometimes at the expense of interaction with those who are physically present--and creates what he calls "bounded solidarity." Ling argues that mobile communication helps to engender and develop social cohesion within the family and the peer group. Drawing on the work of Emile Durkheim, Erving Goffman, and Randall Collins, Ling shows that ritual interaction is a catalyst for the development of social bonding. From this perspective, he examines how mobile communication affects face-to-face ritual situations and how ritual is used in interaction mediated by mobile communication. He looks at the evidence, including interviews and observations from around the world, that documents the effect of mobile communication on social bonding and also examines some of the other possibly problematic issues raised by tighter social cohesion in small groups.Rich Ling is Senior Researcher at the Norwegian telecommunications company Telenor and Adjunct Research Scientist at the University of Michigan. He is the author of The Mobile Connection: The Cell Phone's Impact on Society.

Das Buch gibt konkrete Tipps zur erfolgreichen Umsetzung von Softwaretests und effizientem Testmanagement. Dabei verbindet der Autor theoretische Grundlagen mit betrieblicher Realitat zur Anwendung in der Praxis. Er gibt hilfreiche Hinweise, welche Herausforderungen beim Test von Software bestehen, wo es Fallstricke gibt und was zu beachten ist, um sie zu vermeiden.