Abstract: A modular individual lighting arrangement for sports activities, such as mountain biking, is described. Such modular unit includes a light bulb housing having an exterior configuration to interact with a second housing by attaching such housings together. An intermediary receiver is included having a pair of spring fingers which are spaced apart an appropriate distance to interact both with a complementary set of apertures on a single housing and with corresponding apertures in two housings.

Abstract: A bracket and module for a portable personal computer. In one embodiment, the module contains a transmitter and a receiver, or transceiver, for allowing for communications between the portable personal computer and other stations in the network. The bracket may be mounted permanently to the bottom of the portable personal computer if desired, with very little effect on the overall shape or performance of the computer. The module may easily be attached and detached from the bracket. The module contains a handle such that when the module is latched in the bracket, the handle can be used to carry the personal computer. Also included is a door holder to hold open the door of the portable personal computer to expose a connector on the computer which mates with a connector coupled to the module.