Bøger af Ananda Mitra

With the development of easy-to-use video-editing software, inexpensive camera equipment, and a worldwide audience courtesy of the Internet, creating and watching digital video has become a popular pastime among average computer users. The growth of digital video has changed the way movies and television programs are produced and distributed throughout the world. But not all digital videos are YouTube hits and viral videos. In 2006, digital video moved beyond personal use when Great Britain installed nearly 4.2 million surveillance cameras to keep an eye on the activities of its citizens. The digital video files produced by these cameras can store information to be compared with other digital images like passport pictures and drivers' license photographs, leading to fears about how these images are used. Through engaging text, Digital Video, Revised Edition describes the digital tools used to create video images, the various types of digital video, and the future of digital video.

In 2006, about 67 percent of Americans played video games using a computer or game console such as PlayStation, Xbox, or Wii. Video games have come a long way since they were developed in the 1970s. In the past, game programs used a computer-like gadget that could be connected to the television. The players would look at the image on the television screen, hence the name "video game." With the development of personal computers in the 1980s, the computer monitor became a more popular display device, leading to the new term "computer game." These terms, along with "digital game," are now interchangeable. Digital Games, Revised Edition explains the history of digital games, explores how the games have affected players and society, and discusses emerging trends in the digital gaming industry.

Praise for the previous edition: "Highly recommended."--Association of Region XI School Librarians Since the advent of widespread Internet use, digital technology has been used for criminal intent. From computer viruses capable of shutting down and destroying infected computers to recruiting members online for hate groups, the ways the Internet can be used for nefarious purposes is practically limitless. But there is hope. Those in the digital industry are working to increase safeguards from cyber terrorists, such as heading off viruses before they can infect computers, and increasing cyber security. Digital Security, Revised Edition describes how computers are used both to commit crimes and to prevent them and concludes with a discussion of the future of digital crime and stopping its spread.

Today there are talking toasters, cars that start themselves using voice recognition, and telephones that use voice commands. But those are not the only examples of digital sound. The ubiquitous earbuds and tiny MP3 players show how common it is to listen to digital music. Digital Music, Revised Edition examines digital sound's basic principles, history, physics, and different formats and how it became so prevalent in the digital world. Because the Internet has made it so easy to share digital files, this volume includes a discussion of the legal implications of sharing music and other files. This accessible title also considers some of the possible trends in the future of digital music.

Between September 2006 and May 2007, the online networking site Facebook doubled its number of visitors to 26 million. Today, it has more than 300 million active users worldwide. Though Facebook is just one tool people use to connect with each other, the myriad of other websites such as MySpace and the estimated 2 billion cellphones in use worldwide mean that more people than ever are using digital communication. Digital Communications, Revised Edition looks at the digital tools used during interpersonal communication, such as cell phones, electronic mail, chat rooms, and social networking websites and how personal weblogs (blogs) and personally produced audio programs (podcasts) can serve to relay messages to the masses. This engaging volume also reveals the dangers of digital communication among people with bad intentions (i.e., spam and scams) and takes a look at future trends in digital communication and the effects of these tools on those people who have grown up with this digital communication access.

Every digital tool, from personal music players to the computers used to land spacecrafts on Mars, is built around the basic principles of the binary number system. In the 17th century, German mathematician Gottfried Leibniz demonstrated that all numbers could be represented using only two digits: 0 and 1. His system allowed scientists to combine the digits to do computations and store information in a way that was simple and easy to interpret. Modern digital systems became possible by converting things like sound waves into the binary system. Digital Research, Revised Edition examines how scientists and researchers have used digital systems to produce some of the tools and gadgets that we use in our everyday lives. It also looks at the effects technology has had on quality of life and how the applications of digital systems have impacted our culture and society by providing new ways of doing things.