NEC Corporation developed a pen computer called P-ISM consisting of five pen components: a camera, virtual keyboard, CPU, cellular phone pen, and projector. The pens connect wirelessly and work together to provide functions like taking photos, using a virtual keyboard, projecting an A4-sized display, making calls as a phone, and connecting to the internet. The battery allows over 6 days of use from a full charge despite its small size. The system was designed to exchange information wirelessly and was unveiled at a 2003 technology conference in Switzerland.

1. PEN PC
Abstract:NEC Corporation is on the way to invent five pen PC which is commonly known as P-ISM
i.e. Pen-style Personal Networking Package. The concept of the pen computer was given in
2003. It was featured at ITU Telecom World which took place in Geneva, Switzerland.
Five pens correspond to five functions: a camera, virtual keyboard, CPU, pen with a cellular
phone and a projector. The display is an LED projector having A4 size (Approx. 1024X768).
It has a virtual keyboard with 3D IR sensor. We have a digital camera used for video
recording, video conferencing. The purpose of communication is to exchange information
with wireless connection. The size of the battery is small and can be used for more than 6
days once it is fully charged. These five parts are connected to each other with a short-range
wireless technology. Cellular phone helps to connect the device to the internet.
K.Rajeshwar Reddy
ECE
10QQ1A0437