In this paper we describe the material of a construction kit designed to allow children to build their own handheld and wearable devices to meet their interests and passions. Children don’t work with these machines, they learn, play and grow with them. Informed by the types of projects that children have done with this material in the context of educational research in science and engineering, ...

The telementoring of surgical procedures is currently achieved via a wired infrastructure that usually requires sophisticated videoconference systems. This project represents the first step in assessing the potential for using handheld computers as a mobile alternative to current telementoring systems. Specifically, this project compares a handheld computer to a standard CRT monitor regarding t...

The advent of light, low-power handheld compute devices such as Windows CE, PalmTM and Handspring, is changing the way in which mobile users interact with their home o ce. These devices can be connected to the Internet through both physical and wireless connections, and sensitive data transferred to and from these devices are subject to interception by a third party. Real-time encryption/decryp...

The recent development of software platforms for cell phones and handheld computers, such as Java 2 Micro Edition (J2ME), has broadened application perspectives in this area. In fact, the developers can now write their own software to run in handheld devices, what was impossible a short time ago since the software and the platforms were proprietary. Among the myriad of applications for these de...

A 22 year old woman comes to your office for the first time complaining of a 1 day history of a “terrible headache.” She describes a throbbing pain on the left side of her head. She works as a mail carrier, and the pain became worse this morning with walking. The patient describes accompanying anorexia, nausea, and several episodes of vomiting. She reports sensitivity to bright lights and loud ...

We designed a system using hand-held computers allowing physicians in the hospital setting to access their surgical schedules, to track patients in multiple hospitals, and to quickly enter billing information. The physicians would then update their schedules and pass billing information electronically when they returned to the office. The system was successfully implemented, it was well accepte...

Web browsing using small screen handheld devices is becoming more and more common. There has been a realization over the last couple of years that handheld devices are becoming much more than Personal Digital Assistants (PDAs), as were originally called, that they are here to stay and are about to become direct competitors to laptop and desktop computers. There were two principal shortcomings t...

The goal of this study was to examine three interfaces for handheld mobile computing (HMC) on the iPhone and then assess against a standard personal computer (PC) interface. While designers originally envisioned similar performance between HMC and PC, our results indicate differences between these platforms. However, specialized mobile sites and applications (Apps) greatly enhanced HMC performa...

This paper describes a system that helps HCI practitioners and researchers manage and conduct experiments involving context-sensitive handheld applications, particularly related to navigation assistance. The system provides a software framework in which application, user interface and interaction monitoring components can be plugged, offering a simple interconnection protocol and minimising the...