Tcl and the Tk Toolkit

Whether youre new to telecommunications and IT or simply want an understandable, comprehensive review of the state-of-the-art, this book is for you. Leading telecommunications trainer and consultant Lillian Goleniewski combines clear explanations of fundamental principles with in-depth, up-to-the minute coverage of networking and the Internet. More than competitive guides, Telecommunications Essentials combines the global breadth and technical depth readers need to truly master telecommunications. Telecommunications Essentials covers the entire spectrum of telecommunications technology and services, current and emerging: telephony (voice networks), IP telephony, data networks, broadband, cable, xDSL, wireless, the PSTN (Public Switched Telephone Netw...

A walk through history's most mind-boggling puzzlesEver since the Sphinx asked his legendary riddle of Oedipus, riddles, conundrums, and puzzles of all sizes have kept humankind perplexed and amused. The Liar Paradox and the Towers of Hanoi takes die-hard puzzle mavens on a tour of the world's most enduringly intriguing braintwisters, from K?nigsberg's Bridges and the Hanoi Towers to Fibonacci's Rabbits, the Four Color Problem, and the Magic Square. Each chapter introduces the basic puzzle, discusses the mathematics behind it, and includes exercises and answers plus additional puzzles similar to the one under discussion. Here is a veritable kaleidoscope of puzzling labyrinths, maps, bridges, and optical illusions that will keep aficionados entertaine...