With the introduction of Napster in 1999, 18-year-old Shawn Fanning showed the world the power of peer-to-peer (P2P) computing. Even though Napster did not survive, P2P continued to live on and flourish. While the focus has been on the personal use of P2P computing, businesses have started to find ways to take advantage of the P2P model in their organizations. P2P proponents forecast that busin...

Abstract A patient-centered personal health records system has been actively promoted in recent years. Its purpose is to maintain long-term and improvement plans. It combines a cloud computing environment build quickly collect information transfer it the back end for storage future access. However, environment, message transmission process more open. Therefore, lack of an authority security mec...

Ubiquitous computing enables an environment that assimilates digital and physical devices seamlessly and presents a unified programming interface to the user. Users can program the environment similar to programming a computer. With the widespread availability of personal devices and personal area networks, there is a growing need for personal devices to share resources and services among thems...

Computing technology has gotten cheaper and more powerful, allowing users to have a growing number of personal computing devices at their disposal. While this trend is beneficial for the user, it also creates a growing management burden for the user. Each device must be managed independently and users must repeat the same management tasks on the each device, such as updating software, changing ...

The latest technology trends in personal mobile computing are towards integration of various technologies. The new generation PDAs ( Personal Digital Assistant) can not only be used as calculators and organizers, they also have color screens with high resolution, audio and video capabilities, and internet access capabilities via Wi-Fi and WiMax, enabling them to be used as mobile phones (smartp...

The rapid proliferation of personal computers, offering tremendous productivity gains for knowledge workers, often creates new application maintenance tasks. Specific concerns include security, data integrity, and access authorization. Distributed networks require security and communication systems. Distributed data entry requires file servers, network support personnel, and synchronization met...